Quote Originally Posted by Itoldyouso View Post
If I remember correctly, weren't some of the GMC 6 cyl engines about 302 CI? I also think they put GMC heads on Chevy 6 cyl engines, but not sure.

Here are some pictures from that event to stir your fire.

Don
GMC 6's came in 270 and 302 cubic inches.. some parts swap from the Chevy 216-261 engine faimly but I'm not sure all what does