i have 302 88' not ho engine with e6sf head 65 cc ( i think from t-bird because i have s in the head )
and i want to buy summit pistons part Number SUM-17302-00
i need to know what is the compression ratio that i get
i have 302 88' not ho engine with e6sf head 65 cc ( i think from t-bird because i have s in the head )
and i want to buy summit pistons part Number SUM-17302-00
i need to know what is the compression ratio that i get
From the looks of it, that's pretty close to an H273CP, and those won't even get you 9:1 in that setup. Then again, it doesn't really matter because those heads are totally worthless, I have a set and I couldn't GIVE them away!
About 8.2:1. Like I said before, those pistons suck and the heads do too. A $25 set of E7s and some high compression CHEAP pistons would give you quite a bit more HP and a better running engine.
i know that its a suck head but
i am not living in usa, and i have a problem to change the head .
so i need to make the bast with this .
so what piston are u recommend ? ( i went something between 9-9.5 )
i know that its a suck head but
i am not living in usa, and i have a problem to change the head .
so i need to make the bast with this .
so what piston are u recommend ? ( i went something between 9-9.5 )
I see. In that case, I'd have the heads cut to 60cc and port them as much as possible, and use the summit pistons with an 4.03" bore with a 4.03" bore headgasket that has a .039" compressed thickness and zero deck works out to 9.6:1