Burn't exhaust valve

Print Thread

Burn't exhaust valve #1352684 12/16/12 05:20 PM 12/16/12 05:20 PM
Joined: Nov 2008 Posts: 833 MN hemidup OP super stock
hemidup OP super stock Joined: Nov 2008 Posts: 833 MN	Boosted motor with Ferrea SS severe duty valves with Calico coating. Forged pistons were fine. What may have caused this? Jerry Williams.

Re: Burn't exhaust valve [Re: hemidup] #1352685 12/17/12 12:27 AM 12/17/12 12:27 AM
Joined: Jan 2003 Posts: 1,020 Andrews,In. U.S.of A. 6 67_Satellite super stock
67_Satellite super stock 6 Joined: Jan 2003 Posts: 1,020 Andrews,In. U.S.of A.	Solid cam with tight lash and valve not fully seating,narrow seat for not enough heat transfer area, late ign. timing. or???

Hop To