I have a couple of questions with the 113 casting heads work on a 1992 lb9 ive researched this alot and have not found a good answer i know they will bolt up they have the same 58cc combustion chambers will the 1.94 valves clear the 305s bore?

 

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Yes you can, but there are a lot of variables that could cause a problem, so it's always best to do a careful mock-up first.

Slight differences in castings, dowel positions, and cylinder placement can throw things off enough to cause a problem. It rarely happens, but ALWAYS check first.