Z06 cam swap
05-12-2003, 04:44 PM
#1
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Z06 cam swap Tried a search but I couldn't exactly find if anything was necessary to swap an 02 ls6 cam into a 98 trans am besides the cam itself and the 02 ls6 springs (no shims needed with these, correct?). I saw mention of a new timing setup but couldn't distinguish whether or not that was actually necessary or it was one of those "do it while it's torn apart" mods.
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Thanks
05-13-2003, 06:47 PM
#3
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Re: Z06 cam swap Well, you certainly don't need shims. The 2002 LS6/ZO6 cam has a cam centerline to lobe heal distance which is .027" smaller than your stock cam. To get the [exact] lifter preload, you would really need .027" [longer] pushrods.
Shims under the rockers act like installing [shorter] pushrods equal to the thickness of the shim.
Ok Ron, why does the 2002 LS6 use the same 7.40" length pushrod as the LS1 if it would really need a .027" longer pushrod like you just said?
Answer
> The 2002 LS6 uses a lightwieght valve that is .027" longer than the LS1. This does the same thing as a longer pushrod.....
Ron,
Shims under the rockers act like installing [shorter] pushrods equal to the thickness of the shim.
Ok Ron, why does the 2002 LS6 use the same 7.40" length pushrod as the LS1 if it would really need a .027" longer pushrod like you just said?
Answer
> The 2002 LS6 uses a lightwieght valve that is .027" longer than the LS1. This does the same thing as a longer pushrod.....Ron,