Originally Posted by Doc Fiberglass
I’m in Bradenton FULL TIME now. I sold that property in October...,

I still WANT to do some tweaking on the 413 but I don’t think I can do ANYTHING LIKE THAT in the shop I have now ..., probably going to build one out in the rural area.

Do you know the valve sizes in the heads ? lol

And I’d NEVER CONSIDER changing them !



I don't know about the valve size. How far down in the hole are the pistons? Any idea what compression height is? Wonder if a hemi length rod would bring the piston up high enough, or a 3.90 offset grind crank? Maybe with a 383 piston? Just thinking out loud and spitballing.

Last edited by mgoblue9798; 02/08/20 12:58 AM.