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SBC CHEVY HOWARDS HYD OE ROLLER CAM 465/470 LIFT 209/215 DUR@.050" # 180315-10



1 customer review  

Product Information

Product TypeShipped Product
Shipping Cost $10
Number of reviews 1

FOR SBC CHEVY 327 350 383 406 ENGINES.


PART # 180315-10 for use in oe roller blocks.
Part # 110315 retro style for use in early non-roller blocks.

Valve lift with 1.5 Rockers: Intake .465/Exhaust .470

Duration @.050": Intake .209/Exhaust .215
Lobe sep. angle: 110º
Recommended springs #: 274, See our other listings.

 photo HRS-120941-11_xl.jpg

All Howards™ Cams use the highest-grade race quality cores available. All hydraulic and mechanical flat tappet camshafts are 100% Rockwell checked and Parkerized to ensure the highest quality control standards available anywhere. Howards™ Cams are manufactured on dedicated high precision CNC cam grinding machines.

The cam gear is compatible with any standard steel or cast iron distributor gear. No bronze distributor needed. This cam is considered an OEM style, meaning it must be used in a roller block; it cannot be used with a non roller block. Retro style cams are available in our other listings. When using the OEM roller cam, you do not need a cam button, but the block must be a roller block. This auction is for the OEM style roller cam. Many camshaft accessories available in our other listings.

This cam is to be used on sbc engines that are equipped for factory roller cams. These blocks came out in the late 80's in the Corvette and early 90's in the Chevy trucks. As you know, all of the sbc roller engines in this era were throttle body or tune port injection. This cam may not be compatible with those setups, but many are using the oe roller blocks and running a carbureted setup and this cam is well suited on those type setups.

We have used this profile on many different buildups with amazing results. The dyno results are listed below, and show many different engine sizes and combinations.

If you would like expert cam recommendations for your engine, contact us (through the "seller information" tab or through our tech line, 423-722-5152) with the information listed below. We will tell you what cam is best suited for you. Running a cam that is too big in a given combination is not only pointless for making increased power, but creates a increased loss of drivability and unnecessary wear on the valve train. You must have sufficient cubic inch and/or compression ratio, coupled with correct size cylinder heads that will allow enough flow, to justify a particular size cam. Bottom-end and mid-range performance are always affected when you increase cam size, but it would be affected even more if a cam selection is over-sized to the point that no top-end power is gained. So choosing too large of a cam becomes a two-fold problem. Tuning also becomes more difficult with larger than needed cams.

For a recommendation on the best cam for you, please contact us with us the following information:

  • Vehicle model or weight.
  • Engine size, (cubic inch)
  • Approx. compression ratio.
  • Cylinder head runner size.
  • Single or dual plane intake, (if dual plane, what model)
  • Final gear ratio, and overall tire diameter if known.
  • Transmission model.
  • Converter stall range.
  • Your hp expectations, and how you will be using the vehicle (cruising, street, strip, show car, etc.)
  • If a lopey idle is highly desirable. The size engine you have determines this with a given cam choice. We can tell you exactly what a particular cam will sound like in an engine.
  • The brand and type/series of lifters you are running. Very important!

All Howards cams use the highest-grade race quality billets available. The hydraulic and mechanical flat tappet camshafts are 100% Rockwell checked and Parkerized to ensure the highest quality control standards available anywhere. Howard's Cams is proud of its equipment, manufacturing all of its cams on dedicated high precision cam grinding machines.

Howards maintains these exacting standards right through the shipping process. All Howards camshafts are packaged and shipped in a unique, hard, high impact, reusable plastic case. This ensures that that you, our customer receives your new Howard's Cam in the same exacting condition it left our factory.

We have posted actual dyno results below of several different size engines with various combinations of intakes and cylinder heads from a 350 cubic inch size up to our 406 engines using this cam. Most of our dyno results are from the common 383 stroker engine. The dyno report will tell what size and brand of cylinder heads used, single or dual plane intake, rocker ratio, carb size, and total timing. These are all pump gas engines for street and strip use. Our experience is vast with these cams. Few if anyone selling cams will have actual results to post. We are also going to list the characteristics of this cam, such as drivability, often referred to as street manners, as well as what stall converter is recommended and final gearing for a particular engine size.

Correct lifters to use with this cam: J-2079-16 for use in an oe roller block. For those using the retro roller cam you will need a set of tie-bar hyd. roller retro style lifters: Howards 91164-N. These are the lifters we recommend. If you are using an oe roller block, you can still use the tie-bar lifters. They will perform better than most any drop in style lifter. The use of low grade lifters are sure to cause problems. The lifters mentioned above are what we use in our engines. They have proven to be very good quality.

We also have the correct length high quality pushrods that you should use. See our other listings for these items.

Recommendations on using this cam in a 327/350/383 or larger pump gas street rod engine.

This cam, coupled with our single plane intake and our forged pistons with 1.6 rockers, will produce right at 424 horsepower at approx. 5700 RPM on a 10.2:1 compression ratio 383 engine using our NKB cyl. heads. We recommend the dual plane intake for better drivability and throttle response if your vehicle is over 3600 lbs. The dual plane intake will move the torque down lower in the rpm range. The single plane intake would allow the engine to make a higher peak horsepower, but these type intakes move the torque band higher up in the rpm range. Expect a slight loss of top end power with the dual plane intake, but low speed drivability and cruising are greatly improved. The dual plane intake should be one that has its power range from around idle to 5500. There are larger runner dual plane intakes on the market, but it's somewhat pointless to run them with a cam of this size. Our Edlebrock 2701 EPS intake is an absolute perfect combination with this cam as far as dual plane intakes go. We have dynoed many engines with this intake combined with cams similar to this, and the bottom and mid range power are exceptional.

We recommend a stall converter of around 2000-2500 for any 350 or 383 engine build. Stall requirements are less on larger cubic inch engine builds. Final gearing would need to be at 3.20 or numerically higher. The weight of your car is also a factor as what your final gear should be. This cam will make exceptional low to mid range power, and would be considered on the mild to medium aggressive side in a 350. The idle sound with this cam is somewhat lopey, but not to a great extent when used in a 350 and somewhat less so in a 383. Optimal compression ratio requirements in a 350 would be approx. 10.2:1 or more and slightly less in a 383 engine build. This cam is an exceptional choice in a 350 or 383 engine build for those wanting good all around performance, and horse power numbers well into the 400 range.

Yes, you can run an overdrive trans, power brakes, or air conditioning with this cam in a 350 or 383 engine. Valve train life and reliability are very good with this cam as compared to the higher lift and duration cams.

Drivability is very good with this cam in a 350 engine and even better in a 383 build.

Heavy vehicles are not a problem with this cam if properly geared.

Our dyno results are very accurate. As time goes by, you will see more dyno results posted below of engines using this cam with various combinations. We use a group of approximately 5 sbc hyd. roller cams in our engine program. We tested many profiles over the years. This group of cams has outperformed many others with consideration to drivability. There are many cams on the market with similar profiles that do not perform anywhere close to the cams we have chosen.

Below are dyno results on various engine sizes and combinations with this cam. The specifics for each dyno run are found in the upper left-hand corner of the test description graphic. The horse power numbers will usually improve anywhere from 5-10 more than what the dyno results show after the rings have fully seated.

This ad is under contruction, many dyno reports will be listed in the next few days.

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