Maybe you guys could answer this qyestion for me. Please check out this post over in the drive train forum.

http://web.camaross.com/forums/showt...hreadid=168170

Thanks.

 

O.K. here's what I need to know. Do all years of 3.8's have the same bolt pattern?

I read once that the only differance between the LT1 and the V-6 4l60e was the # of clutches inside. Leading me to beleive the 3.4 and 3.8s have the same bolt pattern as the LT1 and all earlier SBCs for that matter.
I am wondering if when they changed to the LS1 with the differant pattern did they change the bolt pattern on the 3.8 also so they had the same trany. shell?

If any one knows I could sure use the info. Thanks.

The V6-60*'s have there own bolt patteren it is all metric.
4.3L V6's have the same bolt patteren as SBC.
LS1 has the same bolt pattern minus 1 bolt near the top right side of the engine.
now figure out if the 3.8's are the same as 4.3 and you will know.