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WISECO FORGED PISTONS 4.280 BORE SIZE FOR BBC 454 ENGINES, +25cc DOME TOP FOR USE WITH 6.135 BUSHED OR PRESS FIT RODS, H-BEAM OR I-BEAM. .030 OVER/4.280 BORE.
Rings not included. The correct size rings used with these pistons is listed below in the piston spec chart. We offer the correct rings for these pistons in our other listings.
The Wiseco pistons are rated very high in the street/strip performance industry. They normally offer three levels of pistons, starting with the Pro-Tru Street version made with 4032 forged alloy. The next level up would be the Pro-Tru series that are much more expensive and made from 2618 aircraft alloy. The highest level pistons they offer are their professional line made for high level racing. Those are normally in the $750-$1100 price range.
Compression Ratio Chart.
The calculations below assume your pistons are at zero deck. Let's say your compression calculates out to be 10.50 for example based on having the pistons at zero deck (flush with the deck), but your pistons were going to be .005 in the hole, then the comp. ratio would only drop to 10.40, and if left .010 in the hole, then it would drop to approx. 10.30 We do recommend having your block decked to allow the piston to set anywhere from flush (zero) to .005 in the hole for optimal performance.
These pistons are also suitable for use with nitrous or blower setups. For the slight increase in cost, this is the best value on the market.
WISECO FULLY FORGED PISTONS RATED AT 700+ HP. THIS SALE IS FOR A FULL SET OF PISTONS. WISECO PISTONS ARE 100% MANUFACTURED IN THE USA. THEY ARE ONE OF THE HIGHEST RATED PISTONS IN THE COUNTRY.
These pistons are for use with full floating bushed rods, or press fit. RING GROOVE SIZE, 5/64 5/64 3/16. SEE FULL PISTON SPECS ABOVE.
We offer these pistons in flat or dome style, and most bore sizes. See our other listings.
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