Speedway Motors Racing Engines CT400 IMCA-Sealed 604 Crate Engine

Run up front with the 400-horsepower CT400 crate engine featuring GM Fast Burn heads! GM Performance Parts' Fast Burn cylinder heads are the fast way to the winner's circle – and they're standard on the 350/400 GM racing engine (often referred to as the "604 crate") from GM Performance Parts. These IMCA-sealed 604 crate engines, formerly sold as Chevrolet Performance 88869604, are based on the popular Fast Burn 385 street crate engine, but include a racing-only 8-quart circle track oil pan with dual kick-out design, along with a valve cover breather kit and special "kool nut" rocker arm design. The assembly also includes an open-plenum high-rise intake manifold and 1.5:1-ratio aluminum roller rockers. The 604 crate engine includes a bulletproof bottom end, anchored by a forged steel crankshaft and hypereutectic pistons. The 23-degree, Fast Burn aluminum heads enable tremendous power in the small-block V-8 because of a unique chamber design that quickly and completely burns all of the air/fuel mixture – giving you maximum power. With the CT400 racing engine under the hood of your Modified or Late Model, you'll put a "fast burn" on the competition. High-revving matched components A fraction of the price of a custom engine Sealed with IMCA-issued bolts and is approved for use in IMCA Popular in Modified and Late Model classes* 400 HP @ 5500 RPM 400 ft. lbs. of torque @ 4500 RPM 4.00" x 3.48" bore x stroke 9.6:1 compression ratio 92 octane recommended fuel 4-bolt main caps Cam lift: .474" intake / .510" exhaust Cam duration @ .050": 208° intake / 221° exhaust 112° lobe separation 1.5:1 ratio aluminum roller rocker arms 2.00" Intake / 1.55" Exhaust valves Includes: Fully assembled long block Black steel valve covers w/ breathers Oil pump, pick-up, 8 quart oil pan Eliminator Vortec intake manifold Spark plugs 8" harmonic balancer Front timing cover IMCA-approved seal kit *Check track/series rules for approved applications. IMCA Approved.

Highlights

• High-revving matched components
• A fraction of the price of a custom engine
• Sealed with IMCA-issued bolts and is approved for use in IMCA
• Popular in Modified and Late Model classes*
• 400 HP @ 5500 RPM

Specifications

• Crate Engine Type: Deluxe Crate Engine
• Engine Displacement: 350 cu. in.
• Horsepower: 400 horsepower
• Compression Ratio: 9.72:1
• Torque: 400 ft./lbs.
• Maximum RPM: 5,800
• Camshaft Type: Hydraulic Roller Tappet
• Cylinder Head Material: Aluminum
• Piston Material: Hypereutectic Aluminum
• Crankshaft Material: Forged 4340 Steel
• Combustion Chamber Volume: 62cc
• Camshaft Duration (.050 in): 208° intake / 221° exhaust
• Camshaft Lift (in): .474 intake / .510 exhaust
• Bore x Stroke (in): 4.000" x 3.480"
• Carburetor Included: No
• Intake Manifold Included: Yes
• Distributor Included: No
• Connecting Rod Material: Powdered Metal
• Warranty: None
• Valve Covers Included: Yes
• Assembled: Yes
• Engine Balance: External
• Cylinder Heads Included: Yes
• Rear Main Seal Style: 1-piece
• Throttle Body Included: No
• Oil Pan Included: Yes
• Timing Cover Included: Yes
• Water Pump Included: No
• Harmonic Balancer Included: Yes
• Flexplate Included: No
• Flywheel Included: No
• Air Cleaner Included: No
• Spark Plugs Included: Yes
• Spark Plug Wires Included: No
• Computer Included: No
• Wiring Harness Included: No
• Cylinder Head Style: Assembled
• Intake Runner Volume: 210cc
• Intake Valves Included: Yes
• Intake Valve Diameter: 2"
• Exhaust Valves Included: Yes
• Exhaust Valve Diameter: 1.55"
• Camshaft Included: Yes
• Cylinder Heads: Fast Burn with LS-style Beehive Springs
• Rocker Arms: Aluminum roller
• Rocker Arm Ratio: 1.5:1
• Block: 4 bolt main
• MFG. Part #: 19419604
• Notes: IMCA-sealed for competition
• Sold in Quantity: Each
• Spark Plug Style: Angle
• Brand: Speedway Motors Racing Engines

Emissions Notice

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.