clearance
03-29-2008, 01:25 PM
Junior Member
SHOW GUEST
Thread Starter
Join Date: Sep 2005
Posts: 8
clearance
i got 0.085 valve to piston clearance on a 496 bbc .it will only see the track .will be good ???
03-29-2008, 02:24 PM
Senior Member
RACING JUNKIE
Join Date: Jul 2007
Location: Florida
Posts: 635
Intake is fine, exhaust needs to be at least .110 to .120.
03-30-2008, 06:33 PM
Senior Member
EXPERT BUILDER
Join Date: Aug 2005
Location: Tell City, IN
Posts: 356
Is that with or without lash?
03-30-2008, 08:40 PM
Senior Member
RACING JUNKIE
Join Date: Jul 2007
Location: Florida
Posts: 635
03-30-2008, 10:38 PM
Senior Member
RACING JUNKIE
Join Date: Sep 2007
Posts: 4,137
I always heard .080 int .100 exh I check mine with zero lash so I have a cushion
03-31-2008, 02:38 AM
Senior Member
DYNO OPERATOR
Join Date: Aug 2005
Location: Rifle Colorado
Posts: 585
Quote:
Originally Posted by Tod74
I always heard .080 int .100 exh I check mine with zero lash so I have a cushion
Yep me too. Those are safe numbers. You can run them considerably tighter depending on max rpm and rod type. Many stock eliminator cars run under .040, but they don't usually expect to get 300+ passes either...
03-31-2008, 11:25 AM
Junior Member
SHOW GUEST
Thread Starter
Join Date: Sep 2005
Posts: 8
some say yes same say no hmmm??
03-31-2008, 02:50 PM
Senior Member
RACING JUNKIE
Join Date: May 2006
Location: Pelahatchie, MS
Posts: 1,004
When in doubt, don't take a chance...
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off