Originally Posted by redtan
Good idea, but seeing pics of the M5 heads not gonna happen unless you make a custom lower manifold to match up the the M5 one at one end and the LS3 heads on the other end.
This is just what i had in mind, not a problem. 2-3 inc twist shape tubes between flanges.
But the size, So throtlee bodies are 50mm which should be enough, inlet on M5 head is 2" width, 1" height, and throtle bodies ofcourse match in those, you can port those little but not much, maybe to size 2 1/4 x 1 1/4, seems quite small comparing to LS3 ports by the pics i´ve seen.