Cylinder head upgrade
Thread Starter
Melting Slicks
Joined: May 2006
Posts: 3,438
Likes: 41
From: Raleigh NC
St. Jude Donor '13-'14
Cylinder head upgrade
The stock L82s were a 76.18cc with an intake of 2.02 and an exhaust of 1.60. I'm looking for an upgrade for my 350, and was wondering what is considered an upgrade in these variables. Don't I want a smaller chamber, around 64cc? And am I looking for a smaller valve lift for my exhaust and intake, or the exact opposite?
Le Mans Master
Joined: Apr 2006
Posts: 5,403
Likes: 95
yes get the smaller 64cc chamber, you may want a hydraulic
with a little less duration, I had a 78 with an L/82 that cam
does not have much torque, not sure what you are after.
a shorter duration high lift cam would be a better. I don't think I
would try the XE conp. some seem to make them work but a lot
of people are having problems with them, think about a crane,
lunati.
with a little less duration, I had a 78 with an L/82 that cam
does not have much torque, not sure what you are after.
a shorter duration high lift cam would be a better. I don't think I
would try the XE conp. some seem to make them work but a lot
of people are having problems with them, think about a crane,
lunati.
Last edited by Little Mouse; May 25, 2006 at 01:16 PM.
Melting Slicks
Joined: Mar 2006
Posts: 2,465
Likes: 0
From: Orange Park Fl
The Comp XEs took alot of heat here for a few months when the oil companies took the zinc out of their motor oil and it caused flat tappet cam failure. Comp was the cam everyone was using (with good reason), so they took the brunt of the blame until the real culprit was discovered. My Comp XE262 is great; a bit more lift on intake and exhaust than your L82 cam, with great torque too. God bless, Sensei
Le Mans Master
Joined: Jan 2006
Posts: 8,319
Likes: 7
From: Wilmington DE, Drive it like you stole it, 68 327 4 speed coupe
Originally Posted by foxymophandlpapa
The stock L82s were a 76.18cc with an intake of 2.02 and an exhaust of 1.60. I'm looking for an upgrade for my 350, and was wondering what is considered an upgrade in these variables. Don't I want a smaller chamber, around 64cc? And am I looking for a smaller valve lift for my exhaust and intake, or the exact opposite?
you could always just use one of teh Generals Formulas
2.02 heads
1970 z28 cam .447 lift I/E, 222 duration I/E, 112 lobe sep, if you are running stock exhaust man the bump up the exhaust duration a littel. thisn wht the fact that your compression will jump up to 10:1 or so should be nice
Melting Slicks
Joined: Aug 2003
Posts: 2,135
Likes: 2
From: Dayton Oh
Originally Posted by foxymophandlpapa
The stock L82s were a 76.18cc with an intake of 2.02 and an exhaust of 1.60. I'm looking for an upgrade for my 350, and was wondering what is considered an upgrade in these variables. Don't I want a smaller chamber, around 64cc? And am I looking for a smaller valve lift for my exhaust and intake, or the exact opposite?
