1971 Buick 455 GS F/SA G/SA Build

HP HUNTER · 09-11-2016, 07:24 PM

I have the complete engine torn down, block and crank cleaned. What I've learned: the 661 heads flow about the same as the 149 castings which is good because they seem to be very hard to come by, I have bearing clearance issues to deal with on the mains, the cam tunnel has been opened up on the high side of the spec, hopefully a coated bearing will help there. Rods are stock Buick with Venolia pistons, some deck heights to deal with, seems I have something I can work with here.

09-11-2016, 07:24 PM	#11
HP HUNTER Senior Member Join Date: Feb 2012 Location: Colorado Springs Colorado/Thousand Oaks Ca Posts: 656 Likes: 82 Liked 372 Times in 129 Posts	Re: 1971 Buick 455 GS F/SA G/SA Build I have the complete engine torn down, block and crank cleaned. What I've learned: the 661 heads flow about the same as the 149 castings which is good because they seem to be very hard to come by, I have bearing clearance issues to deal with on the mains, the cam tunnel has been opened up on the high side of the spec, hopefully a coated bearing will help there. Rods are stock Buick with Venolia pistons, some deck heights to deal with, seems I have something I can work with here.