i was talking to another jbody member he ran a oem headgasket with 325 whp but i thought anything that high should be the copper, is there a safe limit to the oem. i was looking for 300-350whp daily and 375whp friday night track nights, would oem stand that or a copper a must. the copper seems really unattractive versus the oem with all the machine work it requires. any opinions or expierence would be really appreciated


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2.0 LSJ headgasket. Problem Solved.




Currently #4 in Ecotec Forced Induction horsepower ratings. 505.8 WHP 414WTQ!!!
Currently 3rd quickest Ecotec on the .org - 10.949 @ 131.50 MPH!!!

really? never even heard that mentioned, no machining required for it?


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