Thread: strokers
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Old 08-08-2005, 06:33 PM
cobrashoch cobrashoch is offline
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Byron - Byrons pretty much got a good handle in it with a few clevates that need adding. A .030 over bone stock 460 with a offset turned crank to just 4 inches will yeld 480 cubes, and anyone almost anywhere can build such a combo. Using stock internal stuff together with even mild external hot rod parts it will net a engine that has well north of 500lbs of torque in even very mild street tune.
Byrons also right that as the stroke goes up the high dollar stuff has to go in the engine to keep things glued together. Further as the stroke goes up (and displacement) most 385's keep roughly the same horsepower numbers. What changes is the torque band of the engine moves down in rpm's and the torque goes up dramanically.
Bryan TTM - The short stroke, large bore ratios is extreemly old school thinking with todays engines. Also the more you have to buzz a engine to make it run the more you break stuff. Simple physics really. Bore/stroke ratios in even todays racing engines are usially around 10/9 in ratio, to include most new performance cars.
385's have a head called the "c" raised port head that requires a minimum 4.5 inch bore, it can use more due to a huge exhaust valve. Most guys run short rod ratios (sometimes even stock) and usially a slightly shorter 4.3 stroke using that performance head. Dependent on cam selection and bottom end parts selected such engines really buzz hard on the big end. That don't mean that they are any faster in the quarter mile than the moderately stock type stuff though,,,,,,,,,,,,,,,,,,,,,,,,,

cobrashock
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Last edited by cobrashoch; 08-08-2005 at 06:49 PM..
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