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GM Performance IMCA Sealed CT 350 602 Crate Engine, IMCA Approved

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Specs
MFG. Part #:
91019258602
Rear Main Seal Style:
1-piece
Camshaft Type:
Hydraulic Flat Tappet
Piston Material:
Hypereutectic Aluminum
Crankshaft Material:
Cast Iron
Connecting Rod Material:
Powdered Metal
Engine Displacement:
350
Horsepower:
350
Torque:
390
Cylinder Head Material:
Cast Iron
Crate Engine Type:
Deluxe Crate Engine
Maximum RPM:
5500
GM Performance IMCA Sealed CT 350 602 Crate Engine, IMCA Approved
GM Performance IMCA Sealed CT 350 602 Crate Engine, IMCA Approved

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Details

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What's in the Box

Competitive and durable racing power at an economical price!
 
Designed for circle track's weekend warriors, this bullet-proof 350-horsepower, 350-cubic-inch factory-sealed racing engine 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.
 
Delivered complete from the oil pan to the intake manifold –including an HEI distributor –the 350/350 racing 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

Specifications:

  • 350 HP @ 5000 RPM, 390 ft. lbs. of torque @ 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 @ .050”: 212 deg. Intake / 222 deg. Exhaust
  • Lobe Separation: 112.5 Degree
  • .194” Intake/ 1.50” Exhaust valves
  • Stamped Steel, 1.5:1 Ratio rocker arms
Includes:
  • Fully GM assembled long block
  • Steel Valve Cover with 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
GM Performance Parts Racing Crate Engines are excluded from the limited warranty.
 
Note: Comes sealed with IMCA issued bolts and is approved for use in IMCA
 
*Check track rules for correct application.

Item Details

Comes sealed with IMCA issued bolts
Approved for use in IMCA
GM "Street-Stock" Engine

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If you are running the GM 602 crate motor, you need one of these Willy's four barrel carburetors. They are specifically built and dyno tuned to give you maximum power from your crate engine. 

  • Standard metering blocks
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SKU-91012000
                        

The 602/604 DUI is designed specifically for these crate engines with two features that set it apart from regular Racing DUIs. First, the mechanical advance is calibrated on a distributor machine with an aggressive and accurate timing curve designed to meet the requirements of these crate motors. This special racing curve will ensure maximum performance and get your car out of the corners faster. Second, a melonized
gear is installed on the distributor (instead of the stock cast gear) which is compatible with factory roller cams. 

  • Capable of turning 9000 RPM
  • No external spark boxes or coils are needed
  • Easy drop-in installation with a one wire hookup
  • Sends 2-3 times more spark into the combustion chamber than a magneto
  • Allows spark plug gaps to be opened up to .055"
  • Only pulls 2-3 amps (other systems draw 10+ amps)
  • Key distributor parts are polished and lubed for smooth operation

Available in "Stealth" version with no decals and a black cap for a bone stock appearance.

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Competitive and durable racing power at an economical price!
 
Designed for circle track's weekend warriors, this bullet-proof 350-horsepower, 350-cubic-inch factory-sealed racing engine 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.
 
Delivered complete from the oil pan to the intake manifold –including an HEI distributor –the 350/350 racing 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

Specifications:

  • 350 HP @ 5000 RPM, 390 ft. lbs. of torque @ 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 @ .050”: 212 deg. Intake / 222 deg. Exhaust
  • Lobe Separation: 112.5 Degree
  • .194” Intake/ 1.50” Exhaust valves
  • Stamped Steel, 1.5:1 Ratio rocker arms
Includes:
  • Fully GM assembled long block
  • Steel Valve Cover with 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
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*Check track rules for correct application.
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Designed for circle track's weekend warriors, this bullet-proof 350-horsepower, 350-cubic-inch factory-sealed racing engine 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. 
 
Delivered complete from the oil pan to the intake manifold –including an HEI distributor –the 350/350 racing 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

Specifications:

  • 350 HP @ 5000 RPM, 390 ft. lbs. of torque @ 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 @ .050”: 212 deg. Intake / 222 deg. Exhaust
  • Lobe Separation: 112.5 Degree
  • .194” Intake/ 1.50” Exhaust valves
  • Stamped Steel, 1.5:1 Ratio rocker arms
Includes:
  • Fully GM assembled long block
  • Steel Valve Cover with 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
GM Performance Parts Racing Crate Engines are excluded from the limited warranty.
 
Note: Comes sealed with IMCA issued bolts and is approved for use in IMCA
 
*Check track rules for correct application.
 
Be sure to check out our tech article; Legal Upgrades for Crate 602/604 to get the most out of your new crate engine.
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