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SBC CHEVY TURN KEY STAGE 5.5 HYDRAULIC ROLLER CAM 434 CUBIC INCH ENGINE 632 HP & 580 lb. FEET OF TORQUE @ 4900 RPM.
WITH A CVF 8 RIB SERPENTINE ACCESSORY DRIVE SYSTEM.
STREET ROD SETUP.
RUNS ON PREMIUM PUMP GAS.
The picture above is an outdoor shot. Those below were taken indoors.
The CVF 8 rib Serpentine kit is one of the highest quality setups on the market. All of the brackets and pulleys are made in the USA from billet aluminum. Many similar front accessory kits use a 6 rib design, and are made from cast/machined parts. We also offer this setup with an air conditioning compressor, and a power steering delete if desired. This accessory system comes in polished aluminum or powder coated black.
We also offer our engines with a lower cost basic front accessory kit, with electric water pump option and with no turn-key, (base) options at all. See all our engine listings.
The chrome plated one wire CS alternator has a 140 amp output.
Pictured below is an angled downward shot as the engine would appear when observing it in the car.
THE ENGINE IS COMPLETE FROM CARBURETOR TO OIL PAN. PLUG WIRES ARE INCLUDED BUT NOT INSTALLED.
The carb is removed and shipped in it's original carton.
Also available in black as pictured below.
We also offer our engines with a lower cost basic front accessory kit, with electric water pump option and with no turn-key, (base) options at all. See all our engine listings.
DART SHP BLOCK WITH SPLAYED MAIN CAPS.
FORGED 4.155 BORE WISECO PISTONS, 4340 SCAT 4.00 STROKE FORGED CRANK, AND 6.0 SCAT COMPETITION SERIES RODS, AFR
FULLY CNC'D ALUMINUM HEADS.
Introducing our Turn Key Stage 5.5 Roller cam 434 cid 632 hp engine.
- DART SHP BLOCK WITH SPLAYED MAIN CAPS. COMMONLY USED IN ENGINES BUILT TO 800+ HORSE POWER.
- AFR FULL CNC'D ALUMINUM ALLOY HEADS 75cc COMB. CHAMBERS 2.08/1.60 VALVES.
- HOWARDS BILLET STEEL ROLLER CAM AND MAX EFFORT TIE BAR STREET STRIP ROLLER LIFTERS. A CUT ABOVE THE OTHERS.
- CLOYES TIMING SET. THE VERY BEST CLOYES HAS TO OFFER.
- SCORPION RACE SERIES ROCKERS 1.5 OR 1.6 RATIO.
- SCAT 4340 FULLY FORGED STEEL NEUTRAL BAL. CRANKSHAFT. 800+ HP RATED, CLEVITE HP, (HIGH PERFORMANCE SERIES) BEARINGS. BALANCED ON OUR CWT BALANCER TO BELOW 2 GRAMS.
- SCAT COMPETITION SERIES RODS 7/16 ARP CAP SCREWS. CIRCLE TRACK PROVEN. 700+HP RATED.
- WISECO PREMIUM FORGED PISTONS. 800+HP RATED.
- QUICKFUEL DOUBLE PUMPER CARB WITH DUAL METERING BLOCKS.
- MELLING M-SELECT SERIES OIL PUMP WITH M-SELECT DRIVE ROD.
- CHAMP CUSTOM 8 QT. OIL PAN WITH OIL CONTROL SYSTEM.
- ALUMINUM WATER PUMP
- PRO-RACE BRAND SFI DAMPER.
- TWO YEAR WARRANTY.
This engine is designed for street/strip use. Premium pump gas friendly.
Two year warranty, see details below.
This engine is designed to have a high level of drivability, or street manners. Cams #3 and #4 are our favorites for offering exceptional low end and mid range performance plus max drivability without needing to deepen final gearing or the need for a high stall speed torque converter.
If you choose to go with the Hurricane single plane intake and the first choice cam with 1.6 rockers, it will bring the hp numbers up to approx. 628. We do not recommend the single plane intake combined with cam choice 1 on any car that is over approx 3,200 lbs and/or cars with a steep (tall) final gear.
Please read the cam info provided below on the four cam choices before purchasing this engine. It is very important that you choose the correct cam and intake for your car and its intended purpose.
Here are a few good reasons why we think the 427/434 engine is a better choice than the 383 or 406 engine.
1. The 427/434 will accelerate most medium to heavy cars dramatically quicker than the common 383's on the market. The main difference between a 427/434 and the 383 is that the 427/434 torque comes in much lower. The difference is so dramatic that you would estimate the engine to have a much higher horsepower rating than it actually has. If you're not familiar with the 427/434 engine, do an internet search on SBC 427 vs 383, and you will be convinced of the difference. There is no inherent weakness in the 427/434 engine when using a Dart high performance block. These engines are built to last. All parts used have much higher hp ratings than this engine is producing. The stroke on this engine is at 4.0.
2. The exhaust note that this engine produces is much deeper than that of any of the smaller cubic inch engines on the market. The difference is dramatic to say the least. The stroke on a 427/434 is at 4.0 compared to 3.750 that is used in a 383 or 406.
3. This engine can be installed in medium to heavier cars without killing acceleration, having to deepen the final gear, and needing a huge stall converter. This engine will accelerate a 3600 lb or heavier car much better than the 350 or 383.
4. Very low maintenance, decent drivability, yet costing only slightly more than building a 383 or 406 street rod engine. Horsepower will vary, depending on cam, carb and intake choice. You have up to four different cams to choose from, and two styles of intake manifolds plus two rocker ratios.
5. Longevity, reliability and low maintenance. You don't have to turn the engine to a critical rpm range to produce its max hp output. There is nothing unsafe about running an engine that's as well built as this up to approx. 6,200 rpm. Our AFR fully cnc'd aluminum heads use very high quality hardware. The new Dart Super High Performance block would be indestructible if built to the power rating of this engine. The fully forged Scat crank and Scat Competition rods are rated well above this engine's output. The Wiseco Racing pistons are rated at 800+hp. The protection against detonation is at its highest with these type pistons.
6. Should you ever decide to sell your car, the resale value of a street rod with a 427/434 engine is very desirable compared to those running 350's or 383's. No 383 can be built up to the level of a 434 while running pump gas with the same compression. The power and torque numbers down low in the rpm band are what make the 434 such an incredible engine, compared to the 383.
We do a full test run on every engine we build on a test mule. The engine is run for two intervals of 15 minutes each, and every possible issue is addressed. When you install the engine, you must verify that the timing is set at the correct value, and the fuel to air ratio must be verified. We also include an engine stand like the one pictured, wheels included, and an engine lift plate.
The build sheet is as follows:
Pictured below is the new Dart SHP block. This block is the absolute ultimate in quality, durability, and value.
Dart SHP block, splayed caps
The block is bored to size with our new Centroid touch probe machine. Few machine shops have a machine of this accuracy.
We also deck the blocks to an RA finish of approx. 15 or better. The decking procedure is also done by our Centroid CNC machine.
We often find many brand new blocks to have a sloping deck of up to 4 thous. When we're finished decking the block, it is within approx. .001 accuracy from end to end. Many machine shops fail to catch this as the machinery they use does not allow for such accuracy.
We then plate hone the block with our new Sunnen SV10 diamond hone machine. This is also a very advanced machine that hones the block with a finish unlike conventional machines.
The final step is to clean the block in our high pressure block washer.
Pictured below is the rotating assembly that comes in this engine.
(file photo, actual parts may vary, see details below)
The photos above and below are file photos. Actual appearance may vary. This picture is to give you an idea of parts used in the rotating assembly portion of this engine. All parts are brand new, first line, unblemished, and balanced in house.
READ THIS LISTING COMPLETELY BEFORE YOU BUY ELSEWHERE!
Connecting Rod Specs.
Piston & Ring Specs.
Bearing, Damper, and Flexplate Specs.
WISECO FULLY FORGED PISTONS, RATED AT 800+ HP. WISECO PISTONS ARE 100% MANUFACTURED IN THE USA. THEY ARE ONE OF THE HIGHEST RATED PISTON BUILDERS IN THE COUNTRY.
The Wiseco fully forged pistons are rated very high in the street/strip performance industry. They offer several price levels of pistons, starting with the Pro-Tru Street version made with 4032 forged alloy. The next level up would be the Professional series that are much more expensive and made from 2618 aircraft alloy.
Our custom made Wiseco pistons are very close in comparison to the Professional series as they are made using the 2618 aircraft alloy and have fully machined crowns.
We have seen a few engine builders use the
forged 4032 alloy. They may fragment from the effects of detonation
, and we find them to be very risky for any carbureted street rod engine that produces high horse power numbers. We would not even consider using such pistons. Such pistons can allow the connecting rods to destroy the block, crank, and cylinder head. Those types of pistons are fine for stock or mild engine builds, but should never be used in carbureted engines built to high horse power levels. These type of pistons will not stand much detonation. The forged 2618 alloy piston is so much more resistant to the effects of detonation and heat.
Our Wiseco Forged pistons are custom designed with an increase in compression height. This has many advantages. Here are a few facts about compression height and deck height.
Our custom made Wiseco pistons have a compression height that is .015 taller than nearly all catalog pistons on the market. We find this to be a very valuable feature.
Another good feature about our pistons having a taller compression height is that the ring land above the top ring is much stronger by being .015 thicker. When pistons encounter the effects of detonation, it is not uncommon to see pistons with the ring land above the top ring broken off. The thicker ring land also makes a better heat sink.
You may have noticed that our Wiseco custom made forged pistons are referred to as Racing Pistons on the package. This does not mean that the pistons are for racing only. This is a generic term, referring to their ability to be used in high performance applications as well as for street rod use. These pistons are perfectly designed for use on the street, as well as for medium to upper level drag racing.
Our custom made Wiseco forged pistons are made from 2618 aircraft alloy. We find this alloy to be much more suitable for high performance engines than the common 4032 forged alloy. You will usually see the higher end pistons on the market using 2618 aircraft alloy.
Why go with 2618 forged pistons? If you encounter certain tuning issues, detonation is highly probable, and its effects can cause severe damage to your engine. The 2618 forged piston is able to withstand the damaging effects from detonation to a higher degree than the lower cost 4032 forged pistons, especially non-forged hypereutectic pistons such as Speed Pro or Keith Black, and many others.
We have built approximately 3500 engines using the Wiseco pistons. The engines have been for street rod and strip use. We have seen no problems, nor has there been any complaints. They are an excellent product in every respect.
These pistons are also suitable for use with nitrous or blower setups.
The pictures below are file photos of our Wiseco pistons. Flash glare on the piston top seems to have enhanced the milling marks. These are hardly visible with the naked eye.
MAHLE FILE FIT RINGS 1.5mm 1.5mm 3.0mm.
Scat 4340 Fully Forged Crankshaft
The picture below is a generic file photo of a Scat crankshaft.
Some of the benefits of the Scat crankshaft:
The material used in this crankshaft is manufactured from an exclusive Space Age material that was designed for high strength and fatigue resistance. The Scat cranks are the best value you will ever find. The Scat crankshafts are the best way to build a strong bottom end for, street rods, dirt and circle track racing, and drag strip racing. This crank is suitable for use up to approx. 800+ hp.
Pictured below is our ABS crank polishing machine in action. We polish the crank on every engine we build. This extends bearing life, keeps oil cooler, and with the reduced friction, a slight increase in horsepower is gained. Many machine shops fail to do this. The finish on most cranks are at the bare minimum of acceptance, and we know this can affect bearing life. We have measured the RA finish with our profilometer, and found it to be as high as 25 RA finish on many of the cranks. We bring that number down considerably.
We now use the Clevite High Performance Series bearings in our engines.
Our choice of rods are the SCAT COMPETITION SERIES rods with ARP-8740 cap screws.
The Scat Pro-Comp extreme duty I-beam rods should not be mistaken for ProComp rods. These rods are made exclusively by Scat, and have nothing to do with the ProComp company. The critical sizing and installation of the ARP cap screws is performed on a Sunnen machine in the USA by Scat Industries. These rods are excellent for those wanting the extra security offered by a rod with 7/16 ARP cap screws.
Take notice of the design of these rods. They are far superior to conventional style I-beam rods. We are now using this rod in all of our Stage 4 and up SBC engines. We also use this rod in our big block 505/540/555 engines, making approx. 700+hp.
If you do a search on the Scat Pro-Comp rods, you will find a vast amount of info on many car forums. All of the info is 100% positive. These rods are run in engines that not only produce high horsepower levels, but also run at continuous RPM. Notice the general appearance in the pictures. These rods do look impressive. The style is reminiscent of a steel billet rod.
The fact that these rods are incredibly strong and well made, coupled with the fact they are light weight and offer better clearance than any H-Beam rod on the market, made it an easy decision to use them in all of our high horsepower street/strip engines.
We use genuine Scat rods with ARP cap screws in all of our engines. Our Scat rods are bronze bushed, and unlike Eagle I beam rods, these are fully forged 4340 alloy.
We have noticed some engine builders using low cost generic rods and crankshafts in their engines. These non-branded, (no-name) products are often poor quality in many ways. You will notice many of the low end engine builders fail to mention the actual brand of the rods or cranks used in their engines. Upon further investigation you will find such parts not to be a branded name product. They may label these parts with a name, but one that is totally unrecognizable in the industry. Our experience in years past with such rods and cranks has been disappointing to say the least. Besides the obvious issues such as incorrect sizing and machining that is difficult to correct, the questionable alloy these items may be produced from and the potentially incorrect heat treating methods used, could prove to be disastrous. Little can be done to verify this and nothing can be done to correct it. Failures of such critical parts will usually result in catastrophic damage to the engine. As you may have noticed, this is why we specify the brand name and series of every part used in our engines.
Genuine ARP 8740 cap screws.
PRO RACE BRAND SFI HARMONIC DAMPER, 6.75 DIAMETER INCLUDED.
Pro-Race brand dampers are used on all of our engines.
INTERNALLY BALANCED, SFI rated, 6.75" DIAMETER REDUCED ROTATIONAL MASS, OFFERS EXCELLENT CLEARANCE.
1.52" THICKNESS, 2.38" THICKNESS WITH HUB
BILLET ALUMINUM TIMING POINTER. FEW SELLERS FINISH OFF THEIR TURN KEY ENGINES AS WE DO.
We did not offer this billet timing pointer in the past. However, we noticed that there was a birds-eye view of the timing pointer from the driver side of the engine, so we decided to use these on all of our engines.
HEAVY DUTY SFI RATED FLEXPLATE MADE IN THE USA INCLUDED.
This SFI flexplate is made in the USA and will resist cracking and warpage to a very high degree. One good telltale in identifying a low quality flexplate is the lack of welding on each side where the plate mates to the ring gear. They usually have a pale grey color to them, as they are not coated, and will rust quickly. Ours are welded on both sides, and are much thicker than an OE plate, and are zinc dichromate coated.
We do offer this engine with a manual flywheel. In most cases we do have both sizes, 153 and 168 tooth, available.
Our CWT 5500 Balancer.
We do our own balancing with our new state of the art CWT 5500 Series balancers. The CWT 5500 is the ultimate for precision balancing. We now have three of these in our machine shop. We consider this machine to be highly advanced compared to the Hines balancer we once used. We balance every rotating assembly we sell within 2 grams or less at no extra charge. A balance sheet is included with your engine.
Three new CWT balance machines under one roof is a rare sight.
Our crew wrapping up for the day. Pardon the mess.
AFR FULLY CNC'D 210cc-220cc HEADS, depending on cam choice.
The AFR heads are the best aftermarket cylinder heads in the world. Quality, performance, and reliability are excellent.
Head gaskets are Fel Pro 1014 premium race grade series, and ARP head bolts, and rocker studs.
ARP HEAD BOLTS AND WASHERS.
Scorpion Race series 1.5 OR 1.6 ratio roller rockers with 7/16 ARP rocker studs. We recommend the 1.5 ratio for better low end response and extended valve train life.
THE BEST HIGH PERFORMANCE RACING ROCKER ARMS MANUFACTURED IN THE USA.
We were amazed at the low level of sound produced in the valve train when we did a test run using our first set of Scorpions. We attribute this quiet operation to the close tolerances in the trunnion section. The trunnion barrels are also micro polished.
The rockers have a lifetime warranty. The aluminum body is made from a 7000 series aircraft alloy. Most rockers have a considerable amount of side play in the trunnion section, and may have an excessive amount of needle bearing clearance. The Scorpion does not have much of a loose feel in the trunnion. Many round track and drag racers run these at very high rpm levels and even run them on solid roller setups. With the milder spring pressures of our engines, these rockers should last a lifetime.
All Scorpion Rockers Feature:
Needle Bearing Fulcrum and Roller Tip, Centerless Ground Trunnion, Centerless Ground Pin & Roller, Burr-Free Thru Hole in Trunnion, Large Machined Seat, Thick Walled Adjusting Nut, Pedestals Machined from Solid Steel, Black Oxide Coated Steel Parts, & 100% CNC Machined.
HOWARDS MAX EFFORT TIE BAR LIFTERS, HOWARDS CHROMOLY 1pc. .080 WALL PUSHRODS.
We use Howards brand premium pushrods in all of our engines. They are lightweight in design, yet very strong. Made in the USA from 4130 chromoly steel. Regular hardened pushrods will most likely flex in the engine when running above normal RPM ranges, and risk bending under high RPM. These do not have the welded ball on the end. We only use the swedged one pc. design, which is a well proven design far superior to the style many others use in engines. 4130 chromoly steel is also much stronger, and will resist flexing. When a pushrod flexes in the engine, you lose lift. Don't be misled by the term "hardened," as this is nothing more than a stock style low cost push rod. They will flex in the engine or possibly bend permanently.
Our choice of lifters are the Howards brand Max Effort tie bar lifters. These lifters are much costlier than the regular Howards tie bar lifters, and have many unique features. They greatly reduce valve float in the upper rpm range, and have a very quiet operation. These lifters sell for approx. $439 a set. They are a cut above the regular tie bar lifters on the market.
We are several cam choices listed below in this engine. Read the specs carefully.
Special Grind # 13459
PART NUMBER: 12-000-8-11321
110 lobe sep.
This cam is the most aggressive of the four choices listed. It will make its peak horse power at approx 6300 rpm. The idle is very radical. Power comes in around 3000 rpm.
We recommend a stall converter of around 2800-3200, preferably closer to the high side of this range. Final gearing would need to be at 355 or higher if used in a car weighing more than 3400 lbs. A 373 final gear is most optimal with this cam, providing the car is reasonably light. This cam does make the most horse power but will trade off bottom end throttle response and low speed cruising in the low rpm range.
You would not be able to run an overdrive trans with this cam choice unless the rpm range in overdrive is approximately 2300 rpm. Valve train life is reduced with this cam as compared to the other choices. This would only be a concern for those wanting to drive their vehicles on long trips or with frequent use. This cam choice puts your setup into the Pro-Street league.
Drivability is fair at best with this cam. The exception to this would be those with very light cars, weighing below 3000 lbs. Those with an automatic trans in cars weighing 3300 lbs or more should have a 373 or higher gear if they chose this cam choice.
If your car is in the approximate range of 3900 lb or more, we advise against this cam, regardless of gearing or stall. If you're on the fence with this cam choice and the one below, then you may want to go with this cam and keep the rocker ratio at 1.5, or go with cam choice 2 and go with a 1.6 ratio. That would put you somewhere in the middle of cam choice 1 and 2, at least in respect to valve lift.
If you choose cam choice 1 or 2 with the single plane intake combination, it is highly recommended that you upgrade the ignition system to an MSD Pro Billet distributor, and CDI unit. These important upgrades are essential for improved idling and overall performance. If you do decide to use the MSD Pro Billet distributor we suggest you use the black timing degree bushing to increase the initial timing and possibly the lighter springs to control how soon the total mechanical advance comes in. You may even "lock-out" the distributor, depending on you cars overall setup. The CDI unit will make a huge improvement in how the engine runs at idle. Low speed cruising will be greatly improved, as well as high rpm operation. If you choose cam choice 3 you may not require these upgrades but should consider them to enhance the performance and drivability of your engine.
Below are our dyno results on one of our 427 engines with cam choice # 1 with a single plane intake. You results may vary depending on intake choice. The horse power numbers will always improve anywhere from 5-10 more than what the dyno results show after the rings have fully seated.
Official Dyno report on our 434 engine with cam choice #1 and Super Victor 2 intake, 1.6 rockers.
Official Dyno report on our 427/434 engine with cam choice #1 and a single plane intake, 1.6 rockers.
Cam choice #2
Howards part no. 180345-10
Valve lift with 1.5 Rockers: Intake .565/Exhaust .580
Duration @.050": Intake .245/Exhaust .253
Cam choice 2 is the perfect, happy medium for those wanting improved drivability in medium weight cars. This cam will still have an aggressive sound at idle. You would require a stall converter in the 2800-3000 range. Staying closer to the higher side of this range would be better.
Final gearing would need to be at 355 or higher. Should your car weigh 3600 lbs or more, then the final gearing should be around 373 or better. Hp numbers will drop with this cam, around 25-30 at the most. Combine this cam choice with the dual plane intake option and hp numbers will fall approx another 10-15, but bottom end torque is greatly improved, as well as drivability.
It is not recommended to opt for the single plane intake if your car is in the medium to heavy weight range. They do not operate as well in the lower rpm range. If your car is light, or has a deep final gear, then the single plane intake is suitable. This is our best selling cam choice with our 427 engine. The low end torque with this cam will be very impressive, but you must still set the car up with proper gearing and converter stall.
Official Dyno report on our 434 engine with cam choice #2 and a single plane intake. Your results will be similar in a 427 engine.
Cam choice #2 and a single plane intake. Excellent hp numbers considering this is cam choice #2 with 1.5 rockers. Very high level of drivability.
Cam choice #3
Comp Cams SBC Xtreme Energy Step Nose Hydraulic Roller Camshaft
Special Grind # 33161
PART NUMBER: 08-000-8-11323
110 lobe sep.
This cam choice (3) is the perfect all around setup for those wanting a very good bottom and mid range response, while still generating decent power at the top. Horsepower rating would drop an additional 10-15 hp below the cam choice 2 when coupled with 1.5 rockers and the dual plane intake. Drivability and street manners would be considered very good with this cam. Heavy cars, upwards of 3800 lbs or more, would do very well with this cam choice. No need for a high rpm stall with this cam, but you would still require a stall in the 2200-2500 rpm range for optimal acceleration.
If your car is in the heavy weight range, and/or geared on the steep side and you want much better streetability, then this is the correct cam choice. You still want to keep the final gear ratio at approx. 320 or higher, but keeping the gear ratio on the tall side is more acceptable with this cam compared to the other choices. If you have an overdrive trans., then this cam, coupled with the dual plane intake, would allow the engine to cruise in overdrive with rpm in the 1850-2000 rpm range. Should you have a Turbo 350 trans, then this cam choice would allow you to run a somewhat taller final gear to allow decent highway driving in the somewhat lower rpm ranges.
You may choose 1.5 or 1.6 rockers with this cam, but we recommend the 1.5 rockers for even better low end response, especially if you plan on running an overdrive transmission. You can also expect a much longer valve train life with this cam compared to the larger cams listed above, especially with the 1.5 ratio rocker choice.
Carb size when using this cam will drop. You'll notice slightly better mileage and better throttle response with this carb versus the larger carbs required when running the larger cam. If your vehicle is very heavy, over 4200 lbs or a full size sport truck, then we recommend our cam choice #4.
Official dyno results with this cam, 1.6 rockers, a single plane intake, and a SQ-950 carburetor.
Official dyno results in our 434 engine with this cam, AFR Heads, our new Brawler carburetor, and a dual plane intake.
The information above on cam selection is not etched in stone. You could step outside these guidelines towards the more aggressive side, but the driving experience may not be as exciting as if you stayed on the conservative side. The larger cams could possibly cross the finish line sooner in cars that are setup properly compared to the smaller choices, but the smaller cams will have a better feel in a narrower power band without all the drama of the more radical setups above.
We're all hungry for as much horsepower as we can get, but building an engine of a given size to higher horsepower will always require a trade off. The 427 engine offers the best of both worlds when it comes to bottom and top end power, but the bigger cams are more demanding on gearing and stall, sensitive to weight, and suffer on drivability as well as valve train wear and tear.
THE CAMS LISTED WILL COVER MOST NEEDS FOR ANY STREET ROD OR SPORT TRUCK.
We have had a few customers wanting to run our Stage 5.2 427/434 engine in a heavy duty work truck such as a 3/4 ton or 1 ton dually used for trailer towing. None of the four cams listed above would be suitable for this. We do have cams for such applications.
QUICK FUEL DUAL PUMP MODEL, MECHANICAL SEC.
Quick Fuel Brawler Race carburetors are machined and assembled by craftsmen right here in the USA. These carburetors work hard, just as their name implies - raw bare-knuckled performance that you can rely on. Brawler performance development started with a high flowing diecast aluminum main body and added purple billet aluminum metering blocks with the latest technology in air/fuel calibrations for today’s race engine demands. They also come with purple billet aluminum throttle bodies for superior durability and throttle shaft stability.
You have a choice of single or dual plane intake. The single plane intake (1st pic below) should only be used on cars that are very lightweight and have good hood clearance.
Dual Plane Intake shown below. This is a large runner dual plane intake. They make excellent mid range power.
Pictured below is the Edelbrock Performer EPS dual plane intake. If you're going with cam choice # 2 or 3 and require more bottom end power, we strongly recommend this intake. This intake offers incredible low end response and has excellent hood clearance for those installing this engine in a C3 Corvette with a non-cowl stock hood.
304 STAINLESS ALLEN HEAD INTAKE BOLTS ARE USED ON ALL OUR ENGINES.
Pictured below are some of our most popular valve covers. They are fabricated aluminum, and very high quality. You may select from any of the valve covers we have listed at no additional cost for your engine.
The satin covers below are by far the most popular.
RETRO STYLE FINNED. OUR SECOND MOST POPULAR CHOICE.
THE RETRO FINNED VALVE COVERS CONTRAST NICELY WITH THE CHROME AND POLISHED ITEMS.
OUR RETRO STYLE TALL FINNED VALVE COVERS HAVE BECOME VERY POPULAR. YOUR CHOICE.
Timing components: Cloyes Race Billet double roller timing set.
Polished Aluminum Timing Cover.
We use the top of the line Cloyes timing set. The difference in quality is dramatic compared to the common true double roller setup. The chain is made in Germany and the sprockets are hardened billet steel (upper and lower). These sets are hand matched for selective sizing.
The cost on this high end timing set is approx $135.00, about three times the cost of the low level budget timing set used by many other engine builders. Should you ever want to confirm that this is what is actually in your engine, you can remove the timing cover, and you will see that this timing set is very different in appearance to the run of the mill low cost sets often used by others.
This top of the line timing set is offered in three different chain tension setups, allowing us to set it up perfectly every time. One more benefit is that timing accuracy is very precise and will remain that way. This timing set will likely last for the life of the engine. This is what you will find in most solid roller engines, as they have very high spring rates, and create an enormous load on the chain and gears, compared to non solid roller setups. It may seem like a bit of overkill to use such a high end timing set, but the versatility and extreme quality outweigh the cost, in our opinion.
Melling M-Select Oil Pump, and M-Select Drive rod with ARP stud.
The M-Select series oil pump by Melling has several important upgrades compared to the regular Melling M-55 Series. The gears are billet steel, and the body is stronger, coated with corrosion-resistant nitrite. This oil pump also includes the M-Select drive rod. Both components are far superior to the regular Melling oil pump and drive rods used by most other engine builders.
Champ premium oil pan.
Pictured above is the oil pan included with this engine. The Champ oil pan used on this engine has an 8 qt. capacity. It has an elaborate oil control system. Features windage tray, crank scraper, .055 gauge outer shell, with reinforcing ribs. Champ oil pans are made in the USA. All QRP Series engines will come with the Champ oil pan.
We do not use the knock off oil pan gaskets on the market. Felpro premium oil pan gaskets are used on all of our engines.
We use this premium studded mini nut set for oil pan and valve cover fasteners. The nuts have a serrated face and built in washers. This is the ultimate set for securing the oil pan to the engine and is far superior to the typical bolts used by most other builders. We use this set on all our engines.
Listed below are more of the items installed on the outside of the engine, which makes it a "Turn Key" engine.
Billet Aluminum Breather set.
If you chose cam choice 1 or 2, then we highly recommend using an exhaust evac. system. The vacuum created by the engine is somewhat insufficient when using these larger cams, heads, carb and intake to operate a pcv system at its best. The exhaust evac system will pull the crankcase gases out of the engine at a very smooth and controlled rate. This allows the rings to seat in much faster and better, and can increase horse power to some degree by reducing crankcase pressure. Another benefit of the evac system is that you're not contaminating the fuel and air mixture with semi-burned byproducts from the engine oil and combustion process.
After the engine is completely broken in, the pcv setup may be sufficient. However, it may not be the best choice. The break-in time may also be slower with the pcv setup.
We also offer a vacuum pump system for the ultimate in crankcase pressure control.
If you do decide to use an exhaust evac system, we have a few more recommendations. The bullet style perforated mufflers, like those made by Magnaflow and many other companies, must be used. In our opinion, they sound the best and, most importantly, they allow the exhaust evac system to work properly. Magnaflow is a popular brand of the true straight through mufflers, and there are several other brands on the market such as Corsa, Borla, and Bullet. The sound level is controlled by the length you choose. The 12-16 inch length sounds the best to us. These mufflers have smooth perforated inner walls. They should not be confused with traditional glass packs with fluted walls, which are very restrictive and have a somewhat sloppy sound.
Traditional chambered mufflers, like Flowmaster, create a back pressure pulse that will interfere with the operation of an exhaust evac. system. Chambered mufflers have the reputation of helping bottom end throttle response, but you will have a decent amount of bottom end power with this engine, especially if you have chosen cam choice 2, 3 or 4. In our experience, the straight through perforated mufflers sound and perform better in every respect, and allow the proper use of an exhaust evac. system. More info. on this subject below.
VERY IMPORTANT NOTE.
If you purchase a starter from us you will have to install it. There is no way for us to properly shim the starter (should it be needed) while the torque converter and transmission are not installed. The flexplate will change position when the transmission is installed and the torque converter is hooked up to the flexplate. Some flexplates have a slight amount of run-out/warpage when the trans. and torque converter are not connected to it. This makes correct starter installation difficult. Only when you have the torque converter mounted to the flexplate can you properly install and adjust the starter.
Suggestion: While the engine is out of the car, still mounted on the engine stand, bolt up your torque converter to the flexplate. This will flatten out the flexplate to a great degree. Then, mount your starter on the engine. This is the only time you will have a birds eye view of the starter gear and ring gear from the back of the engine. You can see ifthe proper amount of mesh is there.
It's possible that once the transmission is installed and the torque converter is hooked up to the flexplate, the position of the ring gear may move a slight bit more. The transmission shaft centers up to the torque converter, and this causes the flexplate to further change shape slightly. This may alter your initial starter adjustment, and if it does, you may need to do a light adjustment once the transmission is installed.
If your engine is equipped with a manual trans. flywheel, there is no torque converter involved, and installing the starter with the engine on the stand and establishing ring gear clearance is a must. There is no need to bolt on the clutch pressure plate. The thick flywheel is flat and true without anything bolted onto it.
You will have a choice of colors on the HEI distributor cap and the plug wires.
We offer plug wires in several color choices.
The plug wires are included but not installed on the engine. Due to the many different style headers being used, we will send the universal wires with the engine for custom fitment.
TAYLOR SPIRO PRO SERIES 8mm UNIVERSAL IGNITION WIRES, 90 DEGREE BOOTS
· Spiro-Pro 8mm Wire is the top choice of racers and enthusiasts due to its affordable value and overall high performance features.
· Spiro-Pro's two-layer 100% silicone inner core & outer jacket keeps the wires flexible for the life of your vehicle, maintaining its vibrant color with heat protection to 600º F.
· Taylor Cable's Spiro-Pro wire consists of a high conductive spiral wound core with a Stainless Steel wire and covered with a fluorocarbon conductive material.
· Spiro-Pro features 350 ohms per foot resistance which provides more fire power to the spark plugs than OEM resistor core wires and has up to 10 times less resistance than standard resistor core wires.
· Spiro-Pro eliminates radio frequency interference (RFI) and is recommended when using a multi spark discharge, electronic ignition systems and other electronic components.
· Features Taylor Cable's EXCLUSIVE low profile 100% silicone PROBOOTS® with vibration proof Stainless Steel double spring locking spark plug terminals.
· These are Universal Fit sets and will require cutting to fit, terminating, and booting the distributor end. Universal Fit sets are universal for most American made vehicles.
Our new 427/434 engine is premium pump gas friendly, with very good street manners. NEVER run regular 87 octane in this engine, premium only. Should you ever hear any sign of pinging or clatter in the engine when accelerating, reduce timing one or two degrees. You can never totally trust the accuracy of timing components.
IMPORTANT NOTE ABOUT DE-TUNING.
For those with very heavy vehicles, such as 4x4 quad cab trucks, 3/4 ton trucks, and crew cab/ex-cab trucks, Suburbans, plus trucks that may do light to medium trailer towing, we strongly recommend the de-tuned version of this engine.
For those wanting to run a supercharger, we recommend our extra deep dish pistons with the 75cc heads regardless of the vehicle.
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