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#35020205
$7,504.99
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Long Block Crate Engine Type, 9.5:1 Compression Ratio
| Crate Engine Type | Long Block |
| Compression Ratio | 9.5:1 |
| Engine Displacement | 302 cu. in. |
| Camshaft Type | Hydraulic Roller |
| Cylinder Head Material | Aluminum |
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Return PolicyEngine Specifications:
• HP: 375
• TQ: 380
• Block: Seasoned OE Roller Block 1987-1995
• Bore/Stroke: 4.040 x 3.000
• Displacement: 302CI
• Crankshaft: OE 1 piece seal external balance 50oz
• Rods: OE
• Pistons: Hypereutectic 9.5:1 compression
• Rings: Moly
• Camshaft: Hyd. Roller
• Cam Specs: 220/224 @50 .512in/.512ex 112LSA
• Timing Chain: Double roller
• Cylinder Heads: Dart aluminum 58cc/170cc 2.02/1.60
• Rocker Arms: Aluminum 1.6 roller rockers
• Oil Pan: Front sump
• Oil Pump: Melling high volume
• Balancer: External balance 50oz
• Flexplate/Flywheel: TCI external balance 50oz 157 tooth #529610
• Intake Manifold: Edelbrock performer RPM dual plane #7121
• Water Pump: Early RH inlet standard rotation
• Distributor: Pro Billet (upgraded melonite gear)
• Carburetor: Quick Fuel 680CFM vacuum secondary’s electric choke #HR-680cfm
• Fuel Pump: Mechanical fuel pump
• Spark Plugs: Autolite #3923
• Spark Plug Wires: 8mm
Engine Info:
• Oil: Conventional / Non Synthetic 10W30
• Oil Filter: Wix or K&N
• Timing: 34-36 Degrees
• Spark Plug Gap: .035”
• Firing Order: 13726548
• Octane: 91+
• Stall Converter: 2400-2800
• Exhaust: 1 5/8
Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary.
Follow EPA, CARB, and state regulations for engine changes
CA WARNING:
Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov
| KEY SPECS | |
|---|---|
| MFG. Part # | HP78C |
| Brand | ATK Engines |
| Crate Engine Type | Long Block |
| Compression Ratio | 9.5:1 |
| Engine Displacement | 302 cu. in. |
| Camshaft Type | Hydraulic Roller |
| Cylinder Head Material | Aluminum |
| Piston Material | Hypereutectic Aluminum |
| Carburetor Included | Yes |
| Intake Manifold Included | Yes |
| Distributor Included | Yes |
| Valve Covers Included | Yes |
| Engine Balance | External |
| Cylinder Heads Included | Yes |
| Rear Main Seal Style | 1-piece |
| Throttle Body Included | No |
| Timing Cover Included | Yes |
| Oil Pan Included | Yes |
| Water Pump Included | Yes |
| Harmonic Balancer Included | Yes |
| Flexplate Included | No |
| Flywheel Included | No |
| Air Cleaner Included | No |
| Spark Plugs Included | Yes |
| Spark Plug Wires Included | Yes |
| Computer Included | No |
| Wiring Harness Included | No |
| Recommended Fuel | 91 Octane |
| Imbalance | 50 oz. |
| GENERAL | |
| Torque | 380 ft./lbs. |
| Horsepower | 375 horsepower |
| Combustion Chamber Volume | 58cc |
| Camshaft Duration (.050 in) | 220° intake / 224 ° exhaust |
| Camshaft Lift (in) | .533 Intake / .554 Exhaust |
| Bore x Stroke (in) | 4.060" x 3.000" |
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