CLASS RACER FORUM - View Single Post - 427-425hp w/GM 401 heads

RULER · 12-06-2012, 11:55 PM

The 401 head can be used on the 1969 427/430 ZL1 or L88 with 2.195 1.885 valve and 114.8cc camber also.there is a different HP. rating for the ZL1 and the L88, The ZL1 gets a bigger cam. If you use an original head casting (aliuminum) then there is a HP reduction.

12-06-2012, 11:55 PM	#1
RULER Member Join Date: Jan 2006 Posts: 222 Likes: 15 Liked 58 Times in 18 Posts	Re: 427-425hp w/GM 401 heads The 401 head can be used on the 1969 427/430 ZL1 or L88 with 2.195 1.885 valve and 114.8cc camber also.there is a different HP. rating for the ZL1 and the L88, The ZL1 gets a bigger cam. If you use an original head casting (aliuminum) then there is a HP reduction.