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$4,350.00
Chevrolet Performance 88869602 CT350 IMCA-Seal 602 Crate Engine
Chevrolet Performance 88869602 CT350 IMCA-Seal 602 Crate Engine

Chevrolet Performance 88869602 CT350 IMCA-Seal 602 Crate Engine

602 GM Chevy Crate Engine, Deluxe Crate Engine Crate Engine Type, 350 horsepower Horsepower

3 Reviews | 23 Answered Questions
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Chevrolet Performance 88869602 CT350 IMCA-Seal 602 Crate Engine
Chevrolet Performance 88869602 CT350 IMCA-Seal 602 Crate Engine
Chevrolet Performance 88869602 CT350 IMCA-Seal 602 Crate Engine
Chevrolet Performance 88869602 CT350 IMCA-Seal 602 Crate Engine
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Chevrolet Performance 88869602 CT350 IMCA-Seal 602 Crate Engine
Chevrolet Performance 88869602 CT350 IMCA-Seal 602 Crate Engine
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Part # 91019258602
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  • Pistons feature a hypereutectic aluminum construction
  • Features a 9.1:1 compression ratio and has 1.5:1 ratio rocker arms
  • Comes sealed with IMCA issued bolts and is approved for use in IMCA
  • Produces an astonishing 350 HP at 5000 RPM, 390 ft. lbs. of torque at 3800 RPM
  • Ideal for Hobby Stock, Factory Stock, Street Stock, Sport Modified, and Truck classes

Details

Crate Engine Type:
Deluxe Crate Engine
Engine Displacement:
350 cu. in.
Horsepower:
350 horsepower
Compression Ratio:
9.12:1
Torque:
390 ft./lbs.
Maximum RPM:
5500
Camshaft Type:
Hydraulic Flat Tappet
Cylinder Head Material:
Cast Iron
Piston Material:
Hypereutectic Aluminum
Crankshaft Material:
Cast Iron
Camshaft Duration (.050 in):
212° intake / 222° exhaust
Camshaft Lift (in):
.435 intake / .460 exhaust
Bore x Stroke (in):
4.000" x 3.480"
Carburetor Included:
No
Intake Manifold Included:
Yes
Distributor Included:
Yes
Connecting Rod Material:
Powdered Metal
Warranty:
None
Valve Covers Included:
Yes
Assembled:
Yes
Cylinder Heads Included:
Yes
Rear Main Seal Style:
1-piece
Oil Pan Included:
Yes
Timing Cover Included:
Yes
Water Pump Included:
No
Harmonic Balancer Included:
Yes
Flexplate Included:
No
Spark Plugs Included:
No
Spark Plug Wires Included:
No
Camshaft Included:
Yes
Rocker Arm Ratio:
1.5:1
Block:
Cast Iron, 4 bolt main
MFG. Part #:
88869602
Notes:
IMCA-sealed for competition.
Sold in Quantity:
Each

Rebates

From Feb 1 to May 31, 2021, Chevrolet Performance Track Ready Rebate Offer is available on select sealed crate engines, all engine blocks, and all cylinder heads. Rebate offers $250 on select Chevrolet Performance Sealed Crate Engines (see complete details for eligible engines), $100 rebate on all Chevrolet Performance Engine Blocks, and $25 rebate on all Chevrolet Performance Cylinder Heads, fulfilled via Visa Prepaid Card. Full details and mail-in form can be found here. To receive your rebate faster, submit your rebate on-line at gmparrtsrebates.com

Info

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, 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
  • 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. To order the GM-sealed version of this engine, click here.
 

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

Notes

  1. Requires the addition of a carburetor, starter, water pump, spark plugs, and plug wires (not included).
  2. Requires an externally balanced flywheel (not included).
  3. The 8-quart Circle Track oil pan is 8 inches deep at the sump. It will clear most GM rear-steer chassis with the stock engine location.
  4. For Circle Track Racing only - not intended for street use.

Warranties

Warranty Information (PDF)

Important Messages

  • This item 91019258602 is made to order. It will be shipped from our warehouse when it is produced.
Some parts are not legal for use in California or other states with similar laws/regulations

Reviews

Q & A

Videos & Articles
  • Visit the Toolbox

    The Toolbox is Speedway Motors' hub for professionally written articles.

  • Check out our installation video of an LS3 Crate Engine into our classic 1952 Chevy Truck. This engine swap was the perfect fit for our week to wicked project.
  • All you need to know about racing a 602 GM crate engine and the necessary parts to make a race ready engine.

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