Any of you guys do this swap? I ordered a set of Manley valves and plan on having them installed with some port work done to the heads. Are they gonna fit?

 

Fit what? The B2L heads? They should, with the appropriate machine work. Be sure to clean up the chamber around the new valves to prevent shrouding.

 

Yes the SBC #14101083 350 heads from my '89 Iroc.

 

I've got 2.02/1.60 valves in 416 305 heads on my 350 right now. Machine shop should be able to do it. As has been said, make sure chamber is not shrouding them. Many of the porting web sites show how to unshroud with a grinder if it is neccessary.

 

What is your setup and what kind of power/times are you seeing with those heads? I have a set of those on my 350 but havnt driven it yet. They are ported and gasket matched, but still have the stock valves. I have a set of 1.94 and 1.5 stainless valves I intend to have put in eventually.

Ben