LS7 427 Crate
Motor
LS7 Crate Engine
Small Block 17802397
This small-block V-8 dreams big, displacing big-block cubic
inches at 7.0 Liters (427 cubic inches) and big-block power at
505 hp at 6300 rpm. It also benches 470 lb.-ft. of torque at
4800 rpm. GM is the first manufacturer to certify its horsepower
and torque rating using the new Society of Automotive Engineers
(SAE) test procedure J2723. Helping to create its high power and
high revving capability are details such as cylinder heads with
computer numerical control (CNC) intake and exhaust ports and
combustion chambers - which creates ports with surgical accuracy
for maximum power production. In addition, the intake valves and
connecting rods are made out of high-strength lightweight
titanium.
