dm79

iTrader: (2)

I posted in newbie tech and i hope its ok i post here. More people here seem to have a grasp on internals.

Some quick help understanding this cam card from a project im working on.

Serial # P 6926-09 Spec Card# 15576909
Part # 54-000-11 CAMSHAFT, LS1 CHEVY LS1/GEN III '97-UP
Core C54-11II CAMSHAFT BLANK, LS1 1997 UP 5.7 CORVETTE
Grind # LS1 3729R /3732R HR114.0
DURATION @ .050 INTAKE 238 ROCKER ARM RATIO
VALVE ADJ INTAKE .000 DURATION @ .050 EXHAUST 244 INTAKE 1.70
VALVE ADJ EXHAUST .000 LOBE LIFT INTAKE .3560 EXHAUST 1.70
VALVE LIFT INTAKE .605 LOBE LIFT EXHAUST .3600
VALVE LIFT EXHAUST .612 LOBE SEPARATION 114.0
DURATION .006 INTAKE C/L 110.0
TAPPET LIFT INTAKE 287 CAM ADVANCE 4
TAPPET LIFT EXHAUST 293 HYDRAULIC Y
VALVE TIMING .050 OVERHEAD CAM N
VALVE OPEN INTAKE 9 JOURNAL DIAMETER STD 2.165
VALVE OPEN EXHAUST 60 RECOMMENDED VALVE SPRINGS
VALVE CLOSED INTAKE 49 DEPARTMENT P
VALVE CLOSED EXHAUST 4 SPC INSTR FOR CUSTOMER



The part reading "cam advance 4" means the cam is already advanced 4* in the grind correct? so dot to dot... or does it mean it needs to be advanced 4? i think its already in the grind.

also im judging rocker arm ratio under it is listed 1.7 (stock) just making sure im reading this cam card right. Trying to advance my knowledge of this stuff

99Bluz28

iTrader: (35)

Dot to dot the cam will be advanced 4*, and yes to the 1.7 ratio.

238(.605")/244(.612") 114lsa +4

dm79

iTrader: (2)

thank you very much