unior
20+ Year Contributor
- 519
- 0
- Oct 10, 2002
-
Lancaster,
Pennsylvania
Bostedquest said:actually the caravan nonjet valve replacements are very good heads. Stock they are 1.5" round.
I had one ported out to 1.75" (yes a full 1/4") bigger on the intake, and 1 5/8" on the exhaust side.
Even with the stock sized valves, the CFM increased by 53.
yeah but will it crack