Chevrolet Performance 88869602 602 Circle Track 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 factory-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, cast iron 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
• Factory-sealed for equal competition
• Popular in Hobby Stock, Factory Stock, Street Stock, Sport Modified, and Truck classes*
• Formerly Speedway # 355-19258602, GM # 19258602

Specifications:

• 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

*Check track/series rules for approved applications. To order the IMCA-sealed version of this engine, click here.

 

GM CT350 Spec Sheet (PDF) 

 

602 Crate Start-Up/Break-in Procedure (PDF)

 

602 Crate Valve Adjustment Procedure (PDF) 

 

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