Type
Cam-in-block 90-degree V*
Displacement
427ci
Horsepower
See Dyon Chart
Torque
See Dyno Chart
Bore x Stroke
4.125inx4.00
Block
Cast Aluminum with 6-Bolt Steel Main
Bearing Caps
Crankshaft
Forged Steel
Pistons
Hypereutectic Aluminum
Connecting Rods
Forged Titanium
Cylinder Head
CNC Ported LS7 Specific Patten
70cc CNC Combustion Chambers
Valve Size
2.20in Titanium Intake
1.61in Sodium Filled Exhaust
Compression Ratio
11.0:1
Camshaft Type
Hydraulic Roller
Camshaft Lift
.591in Intake / .591in Exhaust
Camshaft Duration (@.050in)
211° Intake / 230° Exhaust
Rocker Arms
Investment Cast, Roller Trunnion
Rocker Arm Ratio
1.8:1 (Offset Intake Only)
Recommended Fuel
91 Octane
Maximum RPM
7000
Reluctor Wheel
58x
LS7 Specs
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