LS3 Cam and Cylinder Head Swap - Late Crate Update
569 HP With A Head And Cam Swap? It's True. Check Out The . . .
By Richard Holdener, Photography by Richard Holdener
|
STOCK LS3 |
CNC HEADS COMP CAM |
| RPM |
TQ |
HP |
TQ |
HP |
| 3,100 |
417 |
246 |
432 |
255 |
| 3,300 |
417 |
262 |
435 |
273 |
| 3,500 |
428 |
285 |
446 |
297 |
| 3,700 |
442 |
311 |
458 |
322 |
| 3,900 |
451 |
335 |
471 |
350 |
| 4,100 |
462 |
361w |
494 |
386 |
| 4,300 |
471 |
386 |
509 |
417 |
| 4,500 |
482 |
413 |
512 |
438 |
| 4,700 |
484 |
433 |
514 |
460 |
| 4,900 |
483 |
451 |
517 |
482 |
| 5,100 |
480 |
466 |
521 |
506 |
| 5,300 |
474 |
478 |
521 |
525 |
| 5,500 |
466 |
488 |
517 |
541 |
| 5,700 |
454 |
493 |
509 |
552 |
| 5,900 |
438 |
492 |
497 |
559 |
| 6,100 |
420 |
488 |
487 |
566 |
| 6,300 |
403 |
483 |
473 |
568 |
| 6,500 |
386 |
478 |
459 |
569 |
| 6,700 |
369 |
470 |
443 |
565 |
| 6,900 |
348 |
457 |
-- |
-- |
| AIRFLOW DATA: CNC-PORTED GMPP L76/L92 FLOWED WITH
4.065 BORE |
| Lift |
Intake |
Exhaust |
| 0.200 |
150 |
105 |
| 0.300 |
222 |
140 |
| 0.400 |
260 |
168 |
| 0.500 |
298 |
190 |
| 0.600 |
332 |
201 |
| PARTS LIST |
| DESCRIPTION |
PN |
SOURCE |
PRICE |
| Comp cam |
281LRHR13 |
Comp Cams |
$417.59 |
| Comp Cams valvesprings |
26918 |
Jegs |
174.99 |
| Fast 102mm Big Mouth TB |
54102 |
Morano Racing |
558.99 |
| GMPP L76/L92 CNC heads |
88958698 |
Pace Performance |
1,388.50 |
| GM cam sprocket |
12586481 |
SDPC* |
28.59 |
| GM LS3 controller kit |
19201861 |
SDPC |
1,506.39 |
| GM muscle car oil pan kit |
19212593 |
SDPC |
125.80 |
| GM harmonic balancer |
12620556 |
SDPC |
103.19 |
| GM Y-body FEAD |
19155067 |
SDPC |
825.85 |
| GMPP LS3 crate engine |
19201992 |
Summit Racing |
7,440.39 |
| McLeod LS flywheel |
460535 |
Summit Racing |
425.30 |
| *Scoggin-Dickey Parts Center |
|
|
Scoggin-Dickey Parts Center
5901 Spur 327
Lubbock
TX
79424
800-456-0211
www.sdparts.com
|
McLeod Industries
1600 Sierra Madre Circle
Pasadena
CA
92870
714-630-2764
www.mcleodind.com
|
Comp Cams Inc.
3406 Democrat Road
Memphis
TN
38118
800-999-0853
www.compcams.com
|
Lucas Oil
302 North Sheridan Street
Corona
CA
92880
951-270-0154
www.lucasoil.com
|
FAST (Fuel Air Spark Technology)
3400 Democrat Road
Memphis
TN
38118
877-344-8355
www.fuelairspark.com
|
E3 Spark Plugs
Ponte Vedra
FL
www.e3sparkplugs.com
|
GM Performance Parts
P.O. Box 33170
Detroit
MI
48232
800-577-6888
www.gmperformanceparts.com
| |
By Richard Holdener
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