Quote:
Originally Posted by 1972convss454
I'm no expert but it is my understanding the M22 was the hold up on the LS6 to begin with. Rick or Chris I know can shed some light on the subject.
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Yes, the fine spline M22 was designed for the 1970 454 Chevelles and their delay was the reason for the very early LS5/6 cars all being TH400.