Crank/Cam
05-24-2011, 04:17 PM
#1
Senior Member
RACING JUNKIE
Thread Starter
Join Date: Mar 2006
Location: EUGENE,OR.
Posts: 3,391
Crank/Cam
1. How much crank thrust is allowable on a stock crank shaft? 327/LE 275HP stock motor.
2. W/ Stock internals, 202/160 aluminum heads, new RPM intake, 4-spd trans, what is a good cam lift/duration without going to high but getting decent choppy sound?
3. Oil pump: stock or high volume???
4. Quiet gear drive... still pretty noisy? Bad idea/good idea? never ran one....
Just freshening this motor; keeping it pretty stock.
2. W/ Stock internals, 202/160 aluminum heads, new RPM intake, 4-spd trans, what is a good cam lift/duration without going to high but getting decent choppy sound?
3. Oil pump: stock or high volume???
4. Quiet gear drive... still pretty noisy? Bad idea/good idea? never ran one....
Just freshening this motor; keeping it pretty stock.
05-25-2011, 06:35 AM
#2
Senior Member
MASTER BUILDER
Join Date: Apr 2003
Location: Brookings South Dakota
Posts: 244
4 Speed thrust clearance .005" to .009"
Hydraulic Flat tappet, Comp Cams 12-242-2 or 12-246-3, after more of a lopey sound, 12-600-4 or 12-601-4 Muther Tumper cam.
Stock Volume pump is fine for Street use.
Gear drives I would stay away from, I would stay with a good roller timing chain.
Hydraulic Flat tappet, Comp Cams 12-242-2 or 12-246-3, after more of a lopey sound, 12-600-4 or 12-601-4 Muther Tumper cam.
Stock Volume pump is fine for Street use.
Gear drives I would stay away from, I would stay with a good roller timing chain.
05-26-2011, 11:48 AM
#3
Senior Member
RACING JUNKIE
Join Date: Dec 2008
Location: Sugar Hill, GA
Posts: 1,365
Originally Posted by cncmotorsports
Gear drives I would stay away from, I would stay with a good roller timing chain.
