LT1 Cam Installation Data
Cam Specs |
MFG | PN |
DURATION | LIFT (1.5) | LIFT (1.6) | LOBE | NOTES |
LGM | N365 | 211 220 | .492 .492 | .525 .525 | 112 | 1500-6200 |
LGM | N365S | 220 220 | .492 .492 | .525 .525 | 112 | 1800-6400 |
LGM | N385 | 220 230 | .480 .480 | .512 .512 | 110 | 3000-6500 |
LGM | N385S | 220 230 | .480 .480 | .512 .512 | 112 | 3000-6500 |
COMP | 08-304-8 | 210 220 | .500 .510 | .533 .544 | 114 | |
COMP | 08-306-8 | 230 244 | .510 .540 | .544 .576 | 114 | heads, intake, headers, evhaust |
COMP | CCA-215-224-14 | 215 224 | .499 .499 | .532 .532 | 114 | 2200-5700 |
COMP | CCA-220-230-14 | 220 230 | .510 .510 | .544 .544 | 114 | 2500-6000 |
COMP/FIS | 215 224 | .499 .499 | .532 .532 | 112 | custom FIS gind blower | |
COMP extreme | CCA-212-218-12 | 212 218 | .488 .495 | .521 .528 | 112 | mild |
COMP extreme | CCA-218-224-12 | 218 224 | .495 .503 | .528 .537 | 112 | A4 stk converter |
COMP extreme | CCA-224-230-12 | 224 230 | .503 .510 | .537 .544 | 112 | 1900-5600 gears |
COMP extreme | CCA-230-236-12 | 230 236 | .510 .521 | .544 556 | 112 | 2200-5800 hvy mods |
COMP extreme | CCA-236-242-12 | 236 242 | .521 .540 | .556 .576 | 112 | 2500-6000 |
COMP extreme | CCA-204-218-14 | 206 218 | .480 .495 | .512 .528 | 114 | Blower Nitrous |
COMP extreme | CCA-212-224-14 | 212 224 | .485 .503 | .519 .537 | 114 | Blower Nitrous |
COMP extreme | CCA-218-230-14 | 218 230 | .495 .510 | .528 .544 | 114 | Blower Nitrous |
COMP extreme | CCA-224-236-14 | 224 236 | .503 .521 | .537 .556 | 114 | Blower Nitrous |
TPIS | 700-134 | 212 236 | .483 .520 | .515 .555 | 112 | ZZ9 for 93-96 |
TPIS | 700-142 | 212 226 | .483 .520 | .515 .555 | 112 | ZZ9 for 95-97 |
GM | .450 .450 | .480 .460 | 93 LT1 STOCK | |||
GM | 230 208 | .450 .460 | .480 .491 | 116 | 94-95 LT1 STOCK | |
GM | 205 207 | .447 .459 | .477 .490 | 117 | 96 LT1 STOCK | |
GM | 203 210 | .446 .449 | .476 .479 | 115 | 96 LT4 (STOCK | |
GMPP | 10185071 | 208 221 | .474 .510 | .506 .544 | 112 | ZZ3 |
GMPP | 24502586 | 218 226 | .492 .492 | .525 .525 | 112 | LT4 HOT |
GMPP (Crane) | 12370845 | 214 224 | .488 .509 | .521 .543 | 112 | |
GMPP (Crane) | 12370846 | 222 230 | .509 .528 | .543 .563 | 112 | |
GMPP (Crane) | 12370847 | 232 242 | .539 .558 | .575 .595 | 112 | |
GMPP (Crane) | 12370847 | 232 242 | .539 .558 | .575 .595 | 112 | |
Crane | 19HR0064 | 198 206 | .480 .480 | .512 .512 | 112 | |
Crane | 104124 | 214 220 | .452 .465 | .481 .496 | 112 | 2000-5500 |
Crane | 104121 | 204 214 | .429 .452 | .458 .482 | 116 | |
Crane | 104125 | 208 214 | .438 .452 | .467 .482 | 112 | |
Crane | 109621 | 214 222 | .489 .509 | .520 .542 | 112 | |
Crane | 104141 | 218 218 | .498 .498 | .531 .531 | 116 | |
Crane | 10HR00013 | 214 222 | .488 .509 | .520 .543 | 112 | |
Crane | 10HR00017 | 214 218 | .488 .498 | .520 .531 | 114 | |
Crane FIS | 215 224 | .499 .499 | .532 .532 | 112 | Custom blower grind | |
Crower | LM-00402 | 219 227 | .498 .518 | .531 .553 | 108 | |
DRM | 222 230 | .508 .528 | .542 .563 | 108 | ||
Lingenfelter | 74211 | 211 219 | .499 .525 | .530 .560 | 112 | 1600-5200 |
Lingenfelter | 74216 | 213 219 | .462 .471 | .493 .502 | 112 | 1600-5200 |
Lingenfelter | 74219 | 219 219 | .525 .525 | .560 .560 | 112 | 1600-6200 |
Lunati | 50160 | 312-218 | .446 .468 | .475 .499 | 110 | 1500-5300 |
Lunati | 50155 | 215 218 | .489 .503 | .522 .537 | 113 | 1500-5500 |
Lunati | 50156 | 232 242 | .510 525 | .544 .560 | 108 | 2000-6500 |
Lunati | 50162 | 242 252 | .525 .540 | .560 .576 | 108 | 2200-6800 |
MTI | 210 220 | .500 .510 | .533 .544 | 114 | ||
MTI | 230 244 | .510 .540 | .544 .576 | 112 |
CAMSHAFT CHARACTERISTICS |
|||||
---|---|---|---|---|---|
RANGE SELECTION | RANGE
1 CAMS UP TO 195° DURATION @ .050" |
RANGE
2 CAMS FROM 195° - 214° DURATION @ .050" |
RANGE
3 CAMS UP TO 215° - 224° DURATION @ .050" |
RANGE
4 CAMS FROM 225° - 240° DURATION @ .050" |
RANGE
5 CAMS FROM 241° -272° DURATION @ .050" |
Idle Quality | Stock idle quality. 18-20" of fld. vacuum. | Smooth idle quality. 16-18" of fld. vacuum | Fair idle with slight lope. Low Mfld. vacuum, may require vacuum reserve tank. | Choppy idle characteristics Low Mfld. vacuum. Will not operate power brakes. | Very rough idle. Low Mfld. vacuum. Will not operate power brakes. |
Power Band | Most efficient from idle to 3,000 rpm | Best power band from 1,500 to 4,000 rpm | Excellent mid range throttle from 2,500 to 4,000 rpm. | Excellent top end power from 2,200 to 6,500 rpm. | Best power band from 3,200 to 7,500 rpm. |
Torque Band | Excellent low to mid range torque from 1,000 to 2,500 rpm | Excellent low to mid range torque from 1,500 to 3,500 rpm | Excellent mid to top end torque from 2,500 to 4,000 rpm | Excellent top end torque from 2,500 to 6,000 rpm | Excellent low to mid range torque from 3,500 to 7,000 rpm |
Various parts required when swapping the cam in a 4th Gen F-Car | |||
Part desc | MFG | PN | Qty |
Water pump gaskets | GM | 10128343 | 2 |
Intake valve stem seals | 8 | ||
Exhaust valve stem seals | 8 | ||
Intake manifold gaskets | Felpro | MS95580 | set of 2 |
Felpro | FEL-1284 | set | |
GM | 12524653 | set of 2 | |
Front cover gasket | GM | 10128293 | 1 |
Front cover seals (water pump drive) | GM | ||
Front cover seals (Opti drive) | GM | ||
Front cover seals (Crank hub) | GM | ||
Head Gaskets (Impala SS) .____ thk | GM | 12553160 | set of 2 |
(LT1) .____ thk | GM | ||
(LT4) .____ thk | GM | ||
93-97 (LT1) .039 thk | Felpro | FEL-1074 | 2 |
93-97 (LT1) .046 thk Mr. Gasket Ulta Seal | MRG | 5715 | 2 |
93-97 (LT1) .026 thk Mr. Gasket Ulta Seal | MRG | 5716 | 2 |
Valve cover gasket (stock stamped valve covers) | GM | 10046089 | 2 |
LT4 composite valve cover | GM | 10108625 | 2 |
LT4 Hot Cam Kit (cam, rockers, springs & retainers) | GM | 1248002 | |
Crane valve springs (stock dia. - up to .60 lift) | 99846-16 | set of 16 | |
above uses stock retainers, lock & seats | |||
Crane valve spring (larger dia. w/retainers, lock & seats | 10308-1 | set | |
LT4 timming set | |||
Chain | GM | 12555887 | 1 |
Gear 1 | GM | 12555885 | 1 |
Gear 2 | GM | 12555886 | 1 |
LT4 Extreme timming set | GMPP | 12370835 | 1 |
(incompatable with 93-94 optispark) | |||
LT4 Extreme timming set | Cloyes | 9-3151 | 1 |
95-97 Optispark | GM | 1104032 | 1 |
LT1 hyd. roller lifters COMP CAMS factory replacement | COMP | 850-16 | set of 16 |
"R" Series Hi-rev COMP CAMS | COMP | 875-16 | set of 16 |
While your in there, how about replacing the push rods? | |||
Stock lenght: 7.200 | TRICK FLOW | TFS-21407200 | |