All the aluminum blocks have a max overbore of about .010". The 97 and 98 LS1 don't even allow that much according to what I've read. 402 is typically a 4" bore with a 4" stroke. 408 would be with a 4.030 overbore.
All the aluminum blocks have a max overbore of about .010". The 97 and 98 LS1 don't even allow that much according to what I've read. 402 is typically a 4" bore with a 4" stroke. 408 would be with a 4.030 overbore.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
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