GM Performance CT350
Chevrolet Performance’s CT350 delivers 350 horsepower from a classic 350 cubic-inch combination. It’s just the thing budget-conscious racers can depend on for competitive performance and low-maintenance durability.
The CT350 is based on the popular 350 HO high-performance street crate engine, including a stout four-bolt main block and Vortec-style iron cylinder heads. The Vortec heads and unique dual-pattern camshaft help deliver more than 300 lb-ft of torque at 2000 rpm and hold it above that mark through 5500 rpm — it peaks at 390 lb-ft at 3800 rpm. With that much pulling power, you can hold a gear longer, keeping the engine in its sweet spot for quicker laps.
We complete the CT350 with an 8-quart Circle Track racing oil pan, balancer, HEI distributor, and an aluminum high-rise, dual-plane intake manifold. Add your carburetor, starter, spark plugs, wires, and water pump — all available at chevroletperformance.com — and you’ll be ready to roll into the winner’s circle!
CT350 TECH SPECS
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Part Number:
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19258602
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|---|---|
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Engine Type:
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Chevy Small-Block V-8
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Displacement (cu. in.):
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350
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Bore x Stroke (in.):
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4.000 x 3.480
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Block (P/N 10105123):
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Cast-iron with four-bolt main caps
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Crankshaft (P/N 10243068):
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Nodular iron
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Connecting Rods (P/N 10108688):
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Powdered metal steel
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Pistons (P/N 94672680):
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Hypereutectic aluminum
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Camshaft Type (P/N 24502476):
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Hydraulic flat tappet
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Camshaft Lift (in.):
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.435 intake / .460 exhaust
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Camshaft Duration (@.050 in.):
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212° intake / 222° exhaust
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Cylinder Heads (P/N 12558060):
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Vortec iron; 64-cc chambers
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|---|---|
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Valve Size (in.):
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1.940 intake / 1.500 exhaust
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Compression Ratio:
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9.12 nominal
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Rocker Arms (P/N 10089648):
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Stamped steel
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Rocker Arm Ratio:
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1.5:1
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Recommended Fuel:
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92 octane
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Ignition Timing:
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Base 10° BTDC, 32° Total
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Maximum Recommended rpm:
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5500
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GM Performance CT400
Chevrolet Performance’s 23-degree Fast Burn heads have large, 210-cc intake runners and 2.00/1.55-inch valves, along with specially shaped combustion chambers that make quick, efficient work of the air/fuel charge. When partnered with an aggressive, high-lift camshaft, you’ve got a great balance of horsepower and torque — and that’s exactly what you get with the CT400 racing engine.
The foundation for the CT400 is our Fast Burn 385 crate engine, including a sturdy iron block with four-bolt mains, a forged crankshaft and high-strength pistons. We’ve tuned the CT400 for more power, and it’s rated at an even 400 horses and 400 lb-ft of torque.
Rounding out the package is a racing oil pan with a dual kick-out design, as well as a valve cover breather kit, special aluminum roller rocker arms, a single-plane aluminum high-rise intake manifold, and balancer. You add the water pump, carburetor, starter, distributor, spark plugs, and wires. They’re all available from chevroletperformance.com.
CT400 TECH SPECS
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Part Number:
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88958604
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|---|---|
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Engine Type:
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Chevy Small-Block V-8
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Displacement (cu. in.):
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350
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Bore x Stroke (in.):
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4.000 x 3.480
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Block (P/N 10105123):
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Cast-iron with four-bolt main caps
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Crankshaft (P/N 12556307):
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Forged steel
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Connecting Rods (P/N 10108688):
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Powdered metal steel
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Pistons (P/N 10159436):
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Hypereutectic aluminum
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Camshaft Type (P/N 10185071):
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Steel hydraulic roller
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Camshaft Lift (in.):
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.474 intake / .510 exhaust
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Camshaft Duration (@.050 in.):
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208° intake / 221° exhaust
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Cylinder Heads (P/N 12464298):
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Fast Burn aluminum, 62-cc chambers
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|---|---|
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Valve Size (in.):
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2.000 intake / 1.550 exhaust
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Compression Ratio:
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9.72 Nominal
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Rocker Arms (P/N 19210724):
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Aluminum, roller style
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Rocker Arm Ratio:
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1.5:1
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Recommended Fuel:
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92 octane
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Ignition Timing:
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Base 10° BTDC, 32° Total
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Maximum Recommended rpm:
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5800
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