GMPP has a new LSX engine out and with 454 cubic inches it puts out 750hp and 680ft/lbs of torque. Oh and No EFI needed.........
LSX454R SPECIFICATIONS
Part number: 19257880
Engine Type: LSX Series Gen IV small-block V-8
Displacement (cu in): 454 (7.4L)
Bore x stroke (in): 4.185 x 4.125
Block (P/N 19244056): LSX cast iron with 6-bolt, cross-bolted main caps
Crankshaft: 4340 forged steel
Connecting rods: 4340 forged steel
Pistons: forged aluminum
Camshaft type: solid roller
Valve lift (in): 0.738 intake / 0.738 exhaust
Camshaft duration (@ 0.050 in): 250 intake / 270 exhaust
Cylinder heads (P/N 19166979): LSX-DR 11-degree aluminum, six-bolt-type with CNC-machined runners and 50cc chambers
Valve size (in): 2.250 intake / 1.625 exhaust
Compression ratio: 13.1:1
Rocker arms: shaft-mounted, roller-tip and trunnion
Rocker arm ratio: 1.9:1
Recommended fuel: racing gas
Reluctor wheel: 58X
Balanced: internal
Horsepower (estimated): 750 plus
Torque (estimated): 680 lb-ft
Maximum recommended RPM: 6900
Part number: 19257880
Engine Type: LSX Series Gen IV small-block V-8
Displacement (cu in): 454 (7.4L)
Bore x stroke (in): 4.185 x 4.125
Block (P/N 19244056): LSX cast iron with 6-bolt, cross-bolted main caps
Crankshaft: 4340 forged steel
Connecting rods: 4340 forged steel
Pistons: forged aluminum
Camshaft type: solid roller
Valve lift (in): 0.738 intake / 0.738 exhaust
Camshaft duration (@ 0.050 in): 250 intake / 270 exhaust
Cylinder heads (P/N 19166979): LSX-DR 11-degree aluminum, six-bolt-type with CNC-machined runners and 50cc chambers
Valve size (in): 2.250 intake / 1.625 exhaust
Compression ratio: 13.1:1
Rocker arms: shaft-mounted, roller-tip and trunnion
Rocker arm ratio: 1.9:1
Recommended fuel: racing gas
Reluctor wheel: 58X
Balanced: internal
Horsepower (estimated): 750 plus
Torque (estimated): 680 lb-ft
Maximum recommended RPM: 6900
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