La318 cylinder head question

Señor Ding Dong said
Hey all, this might be a question with a really elementary answer, but I just want to make sure. I have a 1974 la318 with a set of 587 360 heads. I’m not sure the build on the engine, I believe .030 over and possibly a very mild cam. I have a stuck intake valve on cylinder 3. If it’s not just a broken valve spring and it needs a valve job, am I okay to put stock 1971 318 heads on it? Specifically, if the pistons are a higher compression piston and the cam matches it, will I still be able to run regular pump gas?

I’m assuming it wouldn’t bump the CR enough to be a concern, but I’d hate to make that mistake if it would.

The 318 heads would likely only be temporary, unless the pistons and cam turn out to be closer to stock, in which case I might stick to them rather than rebuild the 587’s.

Thank you!

You can put regular 318 heads on it, just make sure the Springs are right for the cam if it's not stock. As for the stuck valve in the 360 heads if it didn't hit the Piston it should be okay but if it did it's bent. You'll want to clean that guide out and put a new valve in it and either touch the seat with a stone or see if you can lap it in. For what it's worth open chamber 318 heads of the open chamber variety around 1968 to 1970 one or two have 68 CC combustion Chambers