Chevrolet Performance 88869602 CT350 IMCA-Seal 602 Crate Engine

The Chevrolet Performance CT350 circle track crate engine delivers competitive and durable power at an economical price! Designed for circle track's weekend warriors, this bullet-proof 350-horsepower, 350-cubic-inch IMCA-sealed racing crate engine (often referred to as the "602 crate") is a tough combination of power and reliability – and it fits almost any racing budget.   Based on GM Performance Parts' popular 350 HO engine, including a brand-new, four-bolt-main block, 9:1 hypereutectic pistons, Steel crankshaft and GM iron Vortec cylinder heads, the 350/350 Factory Stock version features a high-rise dual-plane intake manifold, 8-quart single kick-out circle track oil pan, valve cover kit with breather tube and breather, and special "kool nut" rocker arm nut design. The 350 HO's unique dual-pattern cam is included, too. It's based on the one found in 1965-67 Corvette 327 engines, but with more lift and duration to clear the engine exhaust quickly and move in more air – providing excellent mid- and high-range power, where you need it on the track.   The 602 crate engine is delivered complete from the oil pan to the intake manifold – including an HEI distributor – the 350/350 CT350 racing crate engine has the proven parts and horsepower to enable a competitive racecar. Getting it into the winner's circle, however, is your job!

• Track-tested durability
• Great mid-range power
• Best horsepower value around
• Comes sealed with IMCA issued bolts and is approved for use in IMCA
• Popular in Hobby Stock, Factory Stock, Street Stock, Sport Modified, and Truck classes*

Features

• 350 HP at 5000 RPM, 390 ft. lbs. of torque at 3800 RPM
• Bore x Stroke: 4.00” x 3.48”
• Compression Ratio: 9.1:1
• 92 Octane recommended fuel
• Cast Iron, 4-bolt main caps
• Cam Lift: .435” Intake / .460” exhaust
• Cam Duration at .050”: 212 deg. Intake / 222 deg. Exhaust
• Lobe Separation: 112.5 Degree
• 1.94” Intake/ 1.50” Exhaust valves
• Stamped Steel, 1.5:1 Ratio rocker arms
• Engine weighs 434 lbs. as delivered

Includes:

• Fully GM assembled long block
• Steel Valve Covers w/ Chevy Bowtie Logo Breathers
• High Rise Aluminum Intake Manifold
• HEI Distributor
• 8” Harmonic Balancer
• Oil pump, pick-up and 8 quart oil pan
• Front timing cover
• IMCA-issued bolts

*Check track rules for correct application

Be sure to check out our tech article Legal Upgrades for 602/604 Crates to get the most out of your new crate engine. 

 GM CT350 Spec Sheet

Start-Up / Break-in Procedure   

Valve Adjustment Procedure