383 Chevy Engine - The Ultimate 'Stick

Dyno-Thrashing 6 Camshafts In A Small-Block 383

Scott Crouse Jan 19, 2007 0 Comment(s)
0607ch_04_z 383_chevy_engine 1/5










Dual-Pattern

Group #1  
PN 12-408-8
Grind XR258HR-10
Intake valve lift 0.480 inch
Exhaust valve lift 0.487 inch
Intake duration at 0.050-inch lift 206 degrees
Exhaust duration at 0.050-inch lift 212 degrees
LSA 110
Intake valve opening 23
Intake valve closing 55
Exhaust valve opening 66
Exhaust valve closing 18
Cranking compression 220 psi
Idle vacuum at 900 rpm 17 inches
Peak torque 483
Peak horsepower 416
Average torque at 2,500-5,500 rpm 456
Average horspower at 2,500-5,500 rpm 345
RPM TQ HP
2,500 440 209
3,000 457 261
3,500 480 320
3,800 483 350
4,000 482 367
4,500 471 404
5,000 437 416
5,500 390 408
6,000 N/A N/A
6,300 N/A N/A

COMMENTS

subscribe to the magazine

get digital get print
TO TOP