Thread: Cam For 383 Vortec

Tweet

What cam is working for those of you that are running a 383?

My Vortec 383 TBI build is shaping up as follows:

Modified 50mm 670 CFM TBI
GMPP Vortec TBI manifold w/50mm Venturi ports
18cc D-cup Pistons ~9.6:1cr
Stock 64-65cc Vortec Heads w/Polished Chambers
No porting other than intake matching
Upgraded valve springs good for ~.520 lift
~.039-.040 Quench
OE Roller Lifters
At least roller tip rockers
Edelbrock Headers with EGR
Single large tube Exhaust with Cat
ECM Controlled
Stock Torque Converter
Upgraded 700 Transmission
3.42:1 Rear End Gear
1994 K1500 Suburban
Cruise RPM @ 60mph = ~1680rpm
Vehicle seems to start moving at around 1000-1200rpm and doesn't likely see above 4500rpm before shifting

I have been considering Comp Cams Extreme Energy line for computer controlled vehicles originally equipped with OE Roller cam, either;

08-500-8 206/212 @.050, .480I/.488E, 112LSA
08-501-8 212/218 @.050, .488I/.495E, 112LSA

I'm looking for grunt towing torque for my service vehicle used to pull boats out of the water and up hills - highway performance appreciated but secondary (probably the smaller cam huh?).

I am not experienced enough to know how 383's react to cam specs so any advice would be appreciated.