88958602 GMR 350/350 Circle Track Engine:
Great racing power at a reasonable cost
Average Price: $3300
(350 HP at 5000 RPM _ torque 390 @ 4000 RPM)
This is a factory sealed crate engine package, complete from high rise dual plane intake manifold, stamped steel valve covers with racing style breathers, and 8 quart single kick-out circle track racing oil pan.
The 350 engine is a great value with the nodular cast iron crankshaft, iron vortec heads with 1.94"/1.50" valves, flat tappet hydraulic lifters, and HEI distributor.
Hydraulic flat tappet cam, .435 intake lift / .460 exhaust lift.
Duration @ .050 – 212 intake / 222 exhaust.
The base engine is a 330 HP 350ci, with the following parts:
P/N 10105123 4 bolt iron block
P/N 14088527 Nodular cast iron crankshaft
P/N 10108688 PM rod
P/N 12361371 Cast aluminum piston
P/N 24502476 Camshaft with hydraulic flat tappet lifters
P/N 12558060 Iron vortec head
P/N 12366573 High rise dual plane intake manifold
P/N 1104067 HEI distributor
P/N 25534353 8 quart circle track oil pan (with oil filter)
P/N 25534359 Valve cover kit with breather tube
P/N 25534355 Valve cover breather kit
P/N 25534352 Special rocker arm nut "kool nut design"

88958604 GMR 350/400 Circle Track Engine
Great racing power at a reasonable cost
Average Price: $5400
(400 HP at 5500 RPM - Torque 400 @ 4500 RPM)
This is a factory sealed crate engine package, complete from intake manifold, stamped steel valve covers with racing style breathers, and 8 quart dual kick-out circle track racing oil pan. The Fast Burn 400 engine is a great value with the 1053 forged steel crankshaft, aluminum heads with 2.00"/1.55" valves, hydraulic roller lifters, HEI distributor, and normal rotation iron water pump included.
1.5:1 Roller Rocker Arms & Roller Cam
Lift - .474 intake / .510 exhaust