Description
Engine Specifications:
- HP: 290
- TQ: 375
- Block: OE roller block 2 bolt main 1pc seal 1996-2000
- Bore/Stroke: up to 4.060″ x 3.480″
- Displacement: 350CI
- Crankshaft: OE Reground external balance rear of crank/internal balance front of the crank
- Rods: OE powder metal 5.7″
- Pistons: Hypereutectic 9.4:1 compression
- Rings: Moly
- Camshaft: Hyd. roller
- Cam Specs: 191/194 @50 .414in/.428ex 111LSA
- Timing Chain: Single Roller
- Cylinder Heads: Vortec cast iron 64cc 1.94/1.50
- Rocker Arms: Stamped steel 1.5 ratio
- Oil Pan: Rear sump 5qt (not for Chevelles with steering behind crossmember, some corvettes and 62-67 chevy II’s)
- Oil Pump: Melling STD Volume
- Balancer: Internally balanced – PowerBond #PB1046-N
- Flexplate/Flywheel: Externally balanced – Pioneer #FRA-159
- Intake Manifold: ATK HP dual plane dual plane
- Distributor: HEI (Iron Gear)
- Water Pump: OE long pump
- Carburetor: Quick Fuel 670CFM Vacuum secondary’s electric choke #BR-67256
- Fuel Pump: MUST RUN ELECTRIC FUEL PUMP-NO MECHANICAL FUEL PUMP PROVISIONS
- Spark Plugs: Autolite #605
- Spark Plug Wires: 8mm
| KEY SPECS | |
|---|---|
| MFG. Part # | HP99C |
| Brand | ATK Engines |
| Crate Engine Type | Long Block |
| Engine Displacement | 350 cu. in. |
| Horsepower | 290 horsepower |
| Compression Ratio | 9.4:1 |
| Torque | 375 ft./lbs. |
| Camshaft Type | Hydraulic Roller |
| Cylinder Head Material | Cast Iron |
| Piston Material | Hypereutectic Aluminum |
| Combustion Chamber Volume | 64cc |
| Camshaft Lift (in) | .414 Intake / .428 Exhaust |
| Carburetor Included | Yes |
| Intake Manifold Included | Yes |
| Distributor Included | Yes |
| Connecting Rod Material | Powdered Metal |
| Valve Covers Included | 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 | Yes |
| Harmonic Balancer Included | Yes |
| Spark Plugs Included | Yes |
| Spark Plug Wires Included | Yes |
| Wiring Harness Included | No |
| Recommended Fuel | 91 Octane |
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