wc pullin engine

 What size would one want the runner bored to for a 1.94 valve in an engine like above?  I've sonic tested a few different heads but it seams that a 1.65" runner is getting twards the end of things for holding water and being durable. 

it takes a tub of belzona supermetal 111 .  the 1.8 works but i have had to plug the thin spots before .  the best way is to cut a head into sections open it up contuor everything with bondo smooth it flow it get it where you want it. then mirror image the work to the head you want to run with the belzona smooth to get the numbers . bondos easier to work for the trial and errors.  once we are done we add water and silicon glass under 14 psi of pressure for a number of days untill we have no seapage . the bad  frequencys have more affect on long rods . Bad flowing heads can be helped with short rods. long rod ratios always need excellent flowing heads unfortunately tractor heads just dont do it without boost.

Edited by mlpankey - 03 Dec 2010 at 9:11pm

I bought some parts from that gentleman, but don't remember his name. His place is North of Mpls/St Paul. The WC was in his shop, and looked like it could pull the building down. I believe he's at the swap meet at Le Seuer, MN every year.