Quote:
Originally Posted by TransAm 474
Thanks everyone, I appreciate the help and tips. Cliff, where is the best place to find the taller piston that you suggested? Thanks
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Speed pro makes a 4 valve relief piston that probably has a more desirable compression height. If you know your current piston manufacturer and part number you might be able to look it up and see what the CH is on the pistons. And then compare that to the speed pro advertised CH . Auto tech can make pistons to a desired CH but that would be more money but also a better piston overall. Basically just moving the wrist pin location up or down. The first engine I ever had done back in the 80's had 8 valve relief badger pistons.
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72 lemans,455 e-head, UD 255/263 solid flat,3.73 gears,,,10" 4400 converter,, 6.68 at 101.8 mph,,1.44 60 ft.2007
(cam 271/278 roller)9"CC.4.11gear 6.41 at 106.32 mph 1.42 60 ft.(2009) SOLD,SOLD
1970 GTO 455 4 speed #matching,, 3.31 posi.Stock manifolds. # 64 heads.A factory mint tuquoise ,69' judge stripe car. 8.64 @ 87.3 mph on slippery street tires.Bad 2.25 60ft.Owned since 86'
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