318/360 Crank/347 running on Dyno

Rat Patrol said

Ramm - I ran a 318/349 using cut down 1.72 CH slugs a few years ago....and ran into p-v issues, even with .100th off the top of the slugs.

Did you measure your p-v clearance?

Reason I ask is I suspect a lot of my issue was my shaved teen heads that I used......

Click to expand...

I measured P-V clearance and it was large enough that I wasn't concerned seeing as how the valve was only lifting .432" with the stock rockers. Also keep in mind that I only removed .010" from the heads and this cam with a 112 LSA only has an overlap period of 37.5 degrees advertised. It is only 7.5 degrees at .050". Again I did not want to get into flycutting the pistons and this engine and cam were planned for before the chips started flying.

You're cut heads may have been the culprit, but who's to say without any data?J.Rob