Thread: Knock on wood, 27 seems ok.

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Originally Posted by Itoldyouso

Yep, Keith Black.


Don

there has been for some time two alloy in forged pistons the 2618 this some like better for hi out put blowers alot of NoS they can take more piston to wall . then theres 4032 alloy were you can run the piston closer to the wall as this is low growth alum were they do not move as much as the 2618 .so if the bores are big with 4032 there going to make noise .i fit the pistons for the alloy and the use. some pistons have skrits ground for better performance as to how much cam is ground in the piston not much is given about some noise till warm in some case there all out race pistons .speedpro/trw . wisco .ross .je. diamond. kb all use diffrent pro files on there skirts. cast pistons you can run very close to the wall so there not going to make any noise. hypers are a high silicon low growth as well not likeing alot of piston to wall or they can bang .so to say a storker will just make more noise is abit of a catch all .more like if forged pistons and abit loose it going to make noise. or the wrong piston to wall for use. some guys will max piston to wall size thinking there going to get beat on hard if sound was a eschew then hypers or fitting the pistons for the use would of help .i machine /build stroker i have not had anyone say any thing about piston noise then you get under say a CH of a 1.200 the piston may rock abit more have used many at 1.250 and 1.125 CH i do not know were you CH is i did not follow the build