CRAWLIN

iTrader: (6)

What can I do to a 241 LS1 casting head with 2.02/1.57 valves to obtain 11.1 compression ratio using a stock size head gasket and stock 346 bottom end. And what CC would these heads turn out to be??


Done alot of reading, but couldnt answer my question.

Thanks

PREDATOR-Z

They would have to be milled around to .035 for 61 cc for a 11.1:1 CR

CRAWLIN

iTrader: (6)

Preditor sorry to question your knowledge, but are you 100% sure, please read my post again and answer. This question has alot of bearing riding on it.



Milling .030 wouldnt get me to a 62cc 11.1 compression ratio with a stock .054 head gasket???


Thank you very much for any and all info!!!!!

jrp

iTrader: (16)

milling .030 puts your chamber at 62.38 and with the .054 gasket nets you 10.86CR. to get 11.1 you'll need to mill .040, that puts you at 11.06CR.

i'd just as well mill .030 and run a .043 gasket, gets you 11.16Cr

PREDATOR-Z

100% no, I said around.
JPR has the 100% (as usual)
There is a sticky thread at the top of this forum, check that.

CRAWLIN

iTrader: (6)

Thanks for the info guys...