Okay so heres a little info to catch you all up.
Had a fresh rebuilt chevy 383. Long story short machine shop didnt catch a crack in the lifter valley. So new block should be ready today. Upon tearing the "old" one apart (700miles on build) where the crack was leaking onto the lifter in cylinder 3, the cam lobe is wiped out.
As comparison, caliper was set to size of other good lobes.
ANYWAYS! That being behind us lol
So this cam is the Comp Thumpr cam. I chose this because i have not machined my vortec heads for higher lift and this cam sounded awesome.
What I have:
Block .030 over, decked, line honed.
Probe -10cc pistons sitting flush at 9.015"
Scat crank
Vortec heads cleaned up w/ valve job, new springs, retainers etc. and PRW sportsman roller tip rockers
Weiand speed warrior intake
Edelbrock 750 carb
With .041 compressed felpro gasket the CR is 10.38:1
From what I understand I have stock 2.29 or 2.73 gears in the rear. Will be changing rear end and 3.31 or 3.73 this winter.
As for the trans, rebuilt th350, stage 2 shift kit and 2500 stall hughes converter.
Curb weight of car is about 3200lbs
So what do you all think? I know about the whole max lift of the vortec heads. Im torn between the XE268H and XE274H (pushing lift close)
But i was also intrigued by the duel energy line, havent heard much about them but the 275DEH has a safer lift with a nice choppy idle.
Opinions!
Had a fresh rebuilt chevy 383. Long story short machine shop didnt catch a crack in the lifter valley. So new block should be ready today. Upon tearing the "old" one apart (700miles on build) where the crack was leaking onto the lifter in cylinder 3, the cam lobe is wiped out.
As comparison, caliper was set to size of other good lobes.
ANYWAYS! That being behind us lol
So this cam is the Comp Thumpr cam. I chose this because i have not machined my vortec heads for higher lift and this cam sounded awesome.
What I have:
Block .030 over, decked, line honed.
Probe -10cc pistons sitting flush at 9.015"
Scat crank
Vortec heads cleaned up w/ valve job, new springs, retainers etc. and PRW sportsman roller tip rockers
Weiand speed warrior intake
Edelbrock 750 carb
With .041 compressed felpro gasket the CR is 10.38:1
From what I understand I have stock 2.29 or 2.73 gears in the rear. Will be changing rear end and 3.31 or 3.73 this winter.
As for the trans, rebuilt th350, stage 2 shift kit and 2500 stall hughes converter.
Curb weight of car is about 3200lbs
So what do you all think? I know about the whole max lift of the vortec heads. Im torn between the XE268H and XE274H (pushing lift close)
But i was also intrigued by the duel energy line, havent heard much about them but the 275DEH has a safer lift with a nice choppy idle.
Opinions!