Gen III LS1 and LS6 Engines Specifications

Swap Details On The Interchangeable Gen III Small-Block

Photography by GM, Jeff Smith

Engine	Horsepower	Torque	Application
LR4, 4.8L	255 @ 5,200	285 @ 4,000	'99 Truck
	270 @ 5,200	285 @ 4,000
	285 @ 5,200	295 @ 4,000	'04 Truck
LM7, 5.3L	265 @ 5,000	320 @ 4,000	'99 Truck
	285 @ 5,200	325 @ 4,000
	295 @ 5,200	330 @ 4,000	'04 Truck
SSR 5.3L	300 @ 5,200	330 @ 4,000	SSR Pickup
LS1, 5.7L	305 @ 5,200	335 @ 4,000	'98-'99 Camaro
	350 @ 5,200	375 @ 4,000*	'04 Corvette
LS6, 5.7L	385 @ 6,000	385 @ 4,800	'01 Corvette
	400 @ 6,000	400 @ 4,800	'04 Corvette
LQ4, 6.0L	300 @ 4,800	360 @ 4,000	'01 Truck
	325 @ 4,400	365 @ 4,000	'04 Truck
LQ9, 6.0L	345 @ 5,200	380 @ 4,000	'04 SS Truck
* Manual trans only—automatic-backed LS1s make less torque

SOURCES
Edelbrock Dept. 5.0 2700 California St. Torrance CA 90503 310-781-2222 www.edelbrock.com	Holley Performance Products (Hooker, Lunati)
Electromotive Inc. Manassas VA www.electromotive-inc.com	Howell Engine Developments
Fuel Air Spark Technology (FAST) Ashland MS www.fuelairspark.com	Lingenfelter Performance Engineering 1557 Winchester Rd. Decatur IN 46733 2-60/-724-2552 www.lingenfelter.com
Mr Gasket Company (ACCEL/DFI)	Painless Wiring 9505 Santa Paula Dr. Fort Worth TX 76116 www.painlesswiring.com
GM Performance Parts www.gmperformanceparts.com	Street & Performance 479-394-5711 www.hotrodlane.cc
Hedman Hedders 16410 Manning Way Cerritos CA 90701 310-921-0404 www.hedman.com