GTP Stage 3 Heads, Camshaft and More
06-29-2009, 10:36 PM
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The flow data was collected on a 3.910” bore. I ran them on a 4.070 bore engine which no doubt had better results than a stock bore. When GTP flowed them I know they flowed at 338cfms that was probably on a 4.030 or 4.100 bench. I had the data collected on a 3.910 as it's more useful to the average buyer.
As far as are they for a big CI motor yes that is the best application for these heads but I would say for the price I'm offering you would get a nice bang for the buck on a stock CI or a 383.
There's another guy selling some GTP Stage III for $1900. His report higher flow numbers though.
As far as are they for a big CI motor yes that is the best application for these heads but I would say for the price I'm offering you would get a nice bang for the buck on a stock CI or a 383.
There's another guy selling some GTP Stage III for $1900. His report higher flow numbers though.
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07-06-2009, 02:07 PM
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Cam specs here they are
Serial # J 2831-06 Spec Card# 11095406
Part # 54-000-11 CAMSHAFT, LS1 CHEVY LS1/GEN III '97-UP
Core C54-11P CAMSHAFT BLANK, LS1 1997 UP 5.7 CORVETTE
Grind # LS1 2511R /2511R SR114.0
DURATION @ .050 INTAKE 248 ROCKER ARM RATIO
VALVE ADJ INTAKE .016 DURATION @ .050 EXHAUST 248 INTAKE 1.70
VALVE ADJ EXHAUST .016 LOBE LIFT INTAKE .3810 EXHAUST 1.70
VALVE LIFT INTAKE .647 LOBE LIFT EXHAUST .3810
VALVE LIFT EXHAUST .647 LOBE SEPARATION 114.0
DURATION .020 INTAKE C/L 114.0
TAPPET LIFT INTAKE 278 CAM ADVANCE 0
TAPPET LIFT EXHAUST 278 HYDRAULIC
VALVE TIMING .050 OVERHEAD CAM N
VALVE OPEN INTAKE 10 JOURNAL DIAMETER STD 2.165
VALVE OPEN EXHAUST 58 RECOMMENDED VALVE SPRINGS
VALVE CLOSED INTAKE 58 DEPARTMENT P
VALVE CLOSED EXHAUST 10 SPC INSTR FOR CUSTOMER
Serial # J 2831-06 Spec Card# 11095406
Part # 54-000-11 CAMSHAFT, LS1 CHEVY LS1/GEN III '97-UP
Core C54-11P CAMSHAFT BLANK, LS1 1997 UP 5.7 CORVETTE
Grind # LS1 2511R /2511R SR114.0
DURATION @ .050 INTAKE 248 ROCKER ARM RATIO
VALVE ADJ INTAKE .016 DURATION @ .050 EXHAUST 248 INTAKE 1.70
VALVE ADJ EXHAUST .016 LOBE LIFT INTAKE .3810 EXHAUST 1.70
VALVE LIFT INTAKE .647 LOBE LIFT EXHAUST .3810
VALVE LIFT EXHAUST .647 LOBE SEPARATION 114.0
DURATION .020 INTAKE C/L 114.0
TAPPET LIFT INTAKE 278 CAM ADVANCE 0
TAPPET LIFT EXHAUST 278 HYDRAULIC
VALVE TIMING .050 OVERHEAD CAM N
VALVE OPEN INTAKE 10 JOURNAL DIAMETER STD 2.165
VALVE OPEN EXHAUST 58 RECOMMENDED VALVE SPRINGS
VALVE CLOSED INTAKE 58 DEPARTMENT P
VALVE CLOSED EXHAUST 10 SPC INSTR FOR CUSTOMER
