Valve length
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
You'll see some variance between suppliers ... but stock usually centered about:
in 4.880"
ex 4.903"
5.050" will work but you'll probably have to shim springs/use taller springs.
You need to develop a good working relationship with a trusty local machine shop ... there's one around you somewhere.
in 4.880"
ex 4.903"
5.050" will work but you'll probably have to shim springs/use taller springs.
You need to develop a good working relationship with a trusty local machine shop ... there's one around you somewhere.
Le Mans Master
Joined: Apr 2006
Posts: 5,403
Likes: 95
.150 taller then stock you could use a minus .050 valve keeper lock
to bring the keeper down some but you would still need taller springs.
You get into taller springs you will have problems finding springs with
low enough spring pressure to work with flat tappit cams especially
hydraulic flat tappits. try to find a buy on stock length valves.
to bring the keeper down some but you would still need taller springs.
You get into taller springs you will have problems finding springs with
low enough spring pressure to work with flat tappit cams especially
hydraulic flat tappits. try to find a buy on stock length valves.
Last edited by Little Mouse; Apr 12, 2007 at 02:09 AM.
Thread Starter
Instructor
Joined: Aug 2005
Posts: 183
Likes: 1
LM,
I already have my springs, retainers and locks. I'll just get a different set of valves.
Jackson,
I know a couple of good machinists who probably would answer many of my questions. Before I had a computer I used to do everything by phone. But hey, this is more fun, and you guys specialize in Chevy performance. Another difference is that I also know some good mechanics and bodymen who I know for a fact are dead wrong on some of their opinions. Here, a guy can get a consensus from various people.
I already have my springs, retainers and locks. I'll just get a different set of valves.
Jackson,
I know a couple of good machinists who probably would answer many of my questions. Before I had a computer I used to do everything by phone. But hey, this is more fun, and you guys specialize in Chevy performance. Another difference is that I also know some good mechanics and bodymen who I know for a fact are dead wrong on some of their opinions. Here, a guy can get a consensus from various people.
