Chevrolet Performance’s most economical Circle Track crate engine
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 offer pulling power that helps you hold a gear longer, keeping the engine in its sweet spot for quicker laps.
We complete the CT350 with an eight-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.
Engine Type: Chevy Small-Block V-8
Displacement (cu. in.): 350
Bore x Stroke (in.): 4.000 x 3.480
Block (P/N 10105123): Cast-iron with four-bolt main caps
Crankshaft (P/N 10243068): Nodular iron
Connecting Rods (P/N 10108688): Powdered-metal steel
Pistons (P/N 94672680): Hypereutectic aluminum
Camshaft Type (P/N 24502476): Hydraulic flat tappet
Camshaft Lift (in.): .435 intake / .460 exhaust
Camshaft Duration (@.050 in.): 212° intake / 222° exhaust
Cylinder Heads (P/N 12558060): Vortec iron; 64-cc chambers
Valve Size (in.): 1.940 intake / 1.500 exhaust
Compression Ratio: 9.12 nominal
Rocker Arms (P/N 10089648): Stamped steel
Rocker Arm Ratio: 1.5:1
Recommended Fuel: 92 octane
Ignition Timing: Base 10° BTDC, 32° Total
Maximum Recommended rpm: 5500