Page 282 - 2021-22 Auto Performance_Circle Track
P. 282
NEW! GMP19418211 An ideal powerplant for
high-powered Super Late
Models, aluminum LS
a nodular iron crank-
shaft, hypereutectic
steel connecting rods,
balancer, and hydraulic
roller camshaft. Engine
is topped with LS3 cylin-
and front timing cover. Available by special order only.
Note: Water pump and exhaust manifolds not included.
Crate Engine
GMP19370604
with beehive valve springs
for improved high-RPM
performance and durability.
-
additionally includes a
forged steel crankshaft,
8-qt. circle track oil pan,
hydraulic roller camshaft,
wires, water pump, distributor, and exhaust not included.
Note: Requires an externally balanced flywheel/flexplate. Distributor with mel- onized gear must be used on engines with steel camshafts, or engine damage will occur.
Crate Engine GMP19418602
crate engine is designed
exclusively for circle
track racing. External-
-
pression ratio engine is
crankshaft, 8-qt. circle
tappet camshaft, cast iron
distributor, and aluminum
dual plane intake manifold.
Part No. Description
Replacement Components
GMP19154761
Valve Spring Kit,
Includes (16) 10212811 Springs and (16) 10241744 Retainers
GMP19201171
Rebuild Gasket Set, Fits 88869602, 19258602, 88958602, HT383 and 350 HO Engines
CT350 Specifications
Displacement
350 Cu. In.
Bore x Stroke
4.000" x 3.480"
Horsepower
350 @ 5,000 RPM
Torque, Ft./lbs.
390 @ 3,800 RPM
Valve Lift
.435"/.460"
Camshaft Duration
212°/222° @ .050"
Valve Size
1.940"/1.500"
Compression Ratio
9.12:1 Nominal
Recommended Fuel
92 Octane
Maximum Recommended RPM
5,500 RPM
CT525 Specifications
Displacement
376 Cu. In.
Bore x Stroke
4.060” x 3.620”
Horsepower
525 @ 6,700 RPM
Torque, Ft./lbs.
471 @ 5,000 RPM
Camshaft Duration
226°/236° @ .050”
Valve Size
2.165”/1.590”
Compression Ratio
10.7:1
Recommended Fuel
92 Octane
Maximum Recommended RPM
6,700 RPM
Sportsman Blocks
Bare, cast iron, competi- tion blocks are precisely machined with four-bolt, nodular iron main caps,
tall lifter bores and extra smooth gasket surfaces for superior sealing.
Finished Max. Rear
Part No. Bore
Chevy
Bore Main Seal
GMP12480047
3.980"
4.155"
350
2-Pc.
GMP12480157
4.117"
4.155"
350
2-Pc.
Part No.
GMP12555331
Description
Intake Valve, 2.000", Each
GMP10096197
Rigid clamp secures the distributor on all
Forged Steel Crankshaft GMP12670965 -
shaft is designed to replace
the cast or steel units found
engines. Must be used with
Replacement Components
GMP12551313
Exhaust Valve, 1.550", Each
GMP19201172
Rebuild Gasket Set, Fits 88869604, 19318604, 88958604, ZZ383, ZZ5 and Fast Burn 385 Engines
CT 400 Specifications
Displacement
350 Cu. In.
Bore x Stroke
4.000" x 3.480"
Horsepower
400 @ 5,500 RPM
Torque, Ft./lbs.
400 @ 4,500 RPM
Valve Lift
.474"/.510"
Camshaft Duration
208°/221° @ .050"
Valve Size
2.000"/1.550"
Compression Ratio
9.72:1 Nominal
Recommended Fuel
92 Octane
Maximum Recommended RPM
5,800 RPM
280 TRACK
CIRCLE 2021-22
