ATK HP99C Stage 3 Long Block Crate Engine – GM 350 Vortec, 290 HP

The ATK HP99C is a remanufactured GM 350 (5.7L) Vortec Stage 3 long block rated 290 HP, with 9.4:1 compression, cast iron Vortec heads, hydraulic roller cam and internal/external balance. It has no mechanical fuel pump provision and needs an electric fuel pump. Includes carburetor, heads, distributor, flexplate, balancer, intake, oil pan, plug wires, plugs, timing cover, valve covers and water pump; air cleaner, computer, flywheel, supercharger, throttle body and harness are not included.

Specifications

• Brand: ATK High Performance Engines
• Part / Model Number: HP99C
• Actual Engine Displacement: 5.7L/350
• Advertised Compression Ratio: 9.4:1
• Assembled: Yes
• Cam Style: Hydraulic roller
• Crate Engine Cylinder Head Material: Cast iron
• Crate Engine Family: Chevy Small Block
• Engine Balance: Internal/External
• Engine Block Material: Cast iron
• Intake Manifold Style: Carbureted
• Notes: Engine has no fuel pump provisions, must run an electric fuel pump.
• Part Type: Crate Engines
• Product Line: ATK High Performance GM 350 Vortec 290 HP Stage 3 Long Block Crate Engines
• Rear Main Seal Style: 1-piece

Included: Carburetor, Cylinder Heads, Distributor, Flexplate, Harmonic Balancer, Intake Manifold, Oil Pan, Spark Plug Wires, Spark Plugs, Timing Cover, Valve Covers, Water Pump.

Actual Engine Displacement: 5.7L/350

Advertised Compression Ratio: 9.4:1

Air Cleaner Included: No

Assembled: Yes

Brand: ATK High Performance Engines

Cam Style: Hydraulic roller, OE roller

Carburetor Included: Yes

Computer Included: No

Crate Engine Cylinder Head Material: Cast iron

Crate Engine Family: Chevy Small Block

Cylinder Heads Included: Yes

Distributor Included: Yes

Engine Balance: Internal/External

Engine Block Material: Cast iron

Flexplate Included: Yes

Flywheel Included: No

Harmonic Balancer Included: Yes

Intake Manifold Included: Yes

Intake Manifold Style: Carbureted

Manufacturer's Part Number: HP99C

Notes: Engine has no fuel pump provisions, must run an electric fuel pump.

Oil Pan Included: Yes

Part Type: Crate Engines

Product Line: ATK High Performance GM 350 Vortec 290 HP Stage 3 Long Block Crate Engines

Quantity: Sold individually.

Rear Main Seal Style: 1-piece

Remanufactured: Yes

Spark Plug Wires Included: Yes

Spark Plugs Included: Yes

Supercharger Included: No

Throttle Body Included: No

Timing Cover Included: Yes

UPC: 00653517524943

Valve Covers Included: Yes

Water Pump Included: Yes

Water Pump Style: Long

Wiring Harness Included: No

NST Cargo coordination: Heavy or oversized equipment delivery is coordinated according to the product and destination address.

Delivery estimate: Timing and applicable arrangements are confirmed during checkout or by Kayros Tool support.

Returns: Contact Kayros Tool before returning an item so eligibility, condition, and instructions can be confirmed.