Home Back 1 Page Feedback About Us Contents Search

GM-LS3 430HP
Conversion Info Engine_Pictures GM-350-350-EFI GM-LS3 430HP 6_Cyl_GM_4.2L Cloud Little_Things Hi Performance

Home
Back 1 Page

GM LS3 6.2L/376" V8 430HP 424# TORQUE
apx. 200HP more than the Rolls Royce 412" V8

 
Customer installed Rolls Royce badges on the Engine cover for an added touch

Detailed Description  All Aluminum Block & Heads & GM Fuel Injection
LS7 TECH SPECS:
Engine Type: LS-Series Gen IV Aluminum-Block V-8
Displacement (cu in): 376 cu in (6.2L)
Bore x Stroke (in): 4.060 x 3.620 (103.25 x 92mm)
Block (P/N 12584727): Cast-aluminum with 6-bolt,
cross-bolted main caps
Crankshaft (P/N 12597569): Nodular iron
Connecting Rods (P/N 12617570): Powdered metal
Pistons (P/N 19168089): Hypereutectic aluminum
Camshaft Type (P/N 12603844): Hydraulic roller
Valve Lift (in): .551" intake / .522" exhaust
Camshaft Duration (@.050 in): 204° intake / 211° exhaust
Cylinder Heads (P/N 12615879): Aluminum L92 style port;
as cast with 68cc chambers
Valve Size (in): 2.165 intake / 1.590 exhaust
Compression Ratio: 10.7:1
Rocker Arms (P/N 12569167 int): Investment-cast, roller trunnion
Rocker Arms (P/N 10214664 exh): Investment-cast, roller trunnion
Rocker Arm Ratio: 1.7:1
Recommended Fuel: 92 octane
Maximum Recommended rpm: 6,600
Reluctor Wheel: 58X
Balanced: Internal

GM DOES NOT RECOMMEND ATTEMPTING TO RUN THIS ENGINE IN A CARBURATED APPLICATION BECAUSE OF THE LACK OF A FUEL PUMP PROVISION, SPECIAL INTAKE MANIFOLD IS REQUIRED , AND SPECIAL TUNING IS NEEDED TO RUN THIS ENGINE WITH A CARBURETOR.

Home ] Back 1 Page ] [Hot Rod Parts.com] [RV Dingy Brakes] [carclubs.com/rolls.htm]

Send mail to Just ask Chuck with questions or comments about this web site.
SEMA.gif (6007 bytes)
Last modified: December 08, 2011