Yes, But nothing too radical. I'm just building a good turboed truck engine. A hay hauling trailer puller. Bigger valves, lumps, and enough grinding to make them fit.
I looked at Larry's cut aways again last night. When installing the lumps does the new short allen head pass completely through the lump? The bolts for my PES lumps don't. Do you wait until the lumps are in place to enlarge the hole? Do that when you counter sink? How far do you counter sink into the old bolt boss? 1/8" ? Beater
Last edited by Beater of the Pack; 12/14/09 03:09 PM. Reason: Add more questions
