Chevy CT350 Sealed 602 IMCA Performance Crate Engine


Now offering free freight and a $50 Visa gift card with purchase!

Powerful; Durable and Affordable! Engine ships with IMCA stamped seals installed.

The Chevrolet Performance powerful; durable and affordable CT350 is the IMCA legal engine that budget-conscious racers can depend on for race-winning performance and low maintenance!

350 hp @ 5;400 rpm / 396 lb.-ft. @ 3;800 rpm

This Chevy engine is based on the popular 350 HO high performance street crate engine; and popular for Sport Mod; Hobby Stock and Circle Track use. It features a strong four-bolt main block and iron Vortec cylinder heads. A unique dual-pattern camshaft helps deliver more than 300 lb.-ft. of torque between 2;000 and 5;500 rpm – peaking at 396 lb.-ft. at 3;800 rpm. With that much pulling power; you can hold a gear longer; keeping the engine in its sweet spot for quicker laps.

GM assembles the CT350 Sealed 602 with an 8-quart circle track racing oil pan; balancer; HEI distributor and an aluminum high-rise; dual-intake manifold. Add your carburetor; starter; spark plugs; wires and water pump – all available from Chevy Performance – and you will be ready for the starting line!

19258602 Chevrolet Crate Motor

Circle Track 350 Tech Specs:

Part Number: 19258602

Engine Type: Chevy Small-Block V-8

Displacement (cu in): 350

Bore x Stroke (in): 4.000 x 3.480

Block: Cast-iron with 4-bolt main caps

Crankshaft: Nodular iron

Connecting Rods: Powdered metal steel

Pistons: Hypereutectic aluminum

Camshaft Type: Hydraulic flat tappet

Camshaft Lift (in): .435 intake / .460 exhaust

Camshaft Duration (@.050 in): 212° intake / 222° exhaust

Cylinder Heads: Vortec iron; 64cc chambers

Valve Size (in): 1.940 intake / 1.500 exhaust

Compression Ratio: 9.12:1 Nominal

Rocker Arms: Stamped steel

Rocker Arm Ratio: 1.5:1

Recommended Fuel: Premium Pump

Ignition Timing: 34° Total @ 4;000 rpm

Maximum Recommended rpm: 5;500

Balanced: External

Installation Notes:

  • Requires addition of carburetor; starter; water pump; plug wires and exhaust system (not included)

  • Requires an externally balanced flywheel (not included)

  • The 8-quart Circle Track "Factory Stock" oil pan is 8 inches deep at the sump and will clear most GM rear-steer chassis with stock engine location

  • Get the most out of your engine with dyno tuning from the Karl Performance professionals - call for details

  • For Circle Track Racing only – NOT intended for street use

Note: Distributor included with CT 350 engine has a melonized steel gear that MUST be used with engines with steel camshafts; or engine damage will occur.

Karl Performance SportMod/Hobby Stock Dyno Tested 602 Crate Engines

Karl Performance offers a fully dynoed 602 crate engine for IMCA SportMod or Hobby classes. Add your choice of carburetor; water pump; pulleys; fuel pump; and ignition wires for a race-ready assembly.


  • Dyno Service

  • Fuel

  • Oil and oil filter

  • Oil filter adapter

  • Distributor locked out

  • NGK park plugs

  • Valve lash set before and checked after dyno session

  • Verify cam timed correctly to ensure correct power output

  • Oil system inspected to verify proper lubrication

Optional Accessories:


Engine does not include fuel system; water pump; pulleys; or carburetor. 

Free Shipping is only available to a business address with a dock or forklift. Additonal charges may apply for residentail delivery.


Karl Performance Professionally Dynoed 602 Crate Engine-Free Freight

Brand: Karl Performance Motors

Retail Price: $4,299.99
You save $0.00

Special Price: $4,299.99

Part Number: 602SM-D

Free Shipping Qualifications(engine, transmissions, etc. only):

Free shipping on all engines and transmissions in the lower 48 states is FREE. Applies to commercially zoned addresses. Please call or contact us for more information.

  • $110.00 surcharge for delivery to a commercial location where a liftgate is required.
  • $220.00 surcharge for delivery to a residential address.

Some items are too large for our normal fast delivery service and will be delivered "to your door" via truck freight service. "Free Shipping on GM Engines or Transmissions" applies to engines shipped in the Continental 48 States to a business address in a commercial location.

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