Description
ATK HP108C Chevy 632CI Complete Engine 820HP
ATK’s new Pro Street 632CI is sure to turn heads! Hand built here in Texas stuffed with name brand quality components you can trust. This engine is ONLY available straight through ATK at this time.
Engine Specifications:
- HP: 820+
- TQ: 800+
- Block: Dart Big M 10.2 Deck 4 bolt main 2pc seal
- Bore/Stroke: 4.600” x 4.750”
- Displacement: 632
- Crankshaft: Scat 4340 forged internal balance
- Rods: Scat 4340 forged H beam with ARP 8740 bolts
- Pistons: Forged 10.3:1 compression
- Rings: Moly
- Camshaft: Hyd. roller
- Cam Specs: 267/277 @50 .680in/.680ex 110LSA
- Timing Chain: Double roller
- Cylinder Heads: ATK aluminum 121cc/360cc 2.300/1.880
- Rocker Arms: Howards billet aluminum 1.7 roller rockers
- Oil Pan: Moroso 7qt street/strip pan with windage tray
- Oil Pump: Melling high volume
- Balancer: Power Bond SFI 7.950”
- Flexplate/Flywheel: N/A
- Intake Manifold: Edelbrock Super Victor
- Distributor: Pro billet (Iron gear)
- Water Pump: N/A
- Carburetor: Quick Fuel 1150CFM mechanical secondary
- Fuel Pump: N/A
- Spark Plugs: Autolite #3934
- Spark Plug Wires: 8mm
Engine Info:
- Oil: Conventional / Non Synthetic 10W30
- Oil Filter: Wix or K and N per application
- Timing: 34-36 Degrees
- Spark Plug Gap: .035”
- Firing Order: 18436572
- Octane: 91+
- Stall Converter: 3000+
- Exhaust: 2 1/4” Headers
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.
| KEY SPECS | |
|---|---|
| MFG. Part # | HP108C |
| Brand | ATK Engines |
| Engine Displacement | 10.3 liters |
| Compression Ratio | 10.3:1 |
| Camshaft Type | Hydraulic Roller |
| Cylinder Head Material | Aluminum |
| Carburetor Included | Yes |
| Intake Manifold Included | Yes |
| Distributor Included | Yes |
| Valve Covers Included | Yes |
| Engine Balance | Internal |
| Cylinder Heads Included | Yes |
| Rear Main Seal Style | 2-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 | Yes |
| Computer Included | No |
| Wiring Harness Included | No |
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