ATK GM 350 330 HP HP291PC Stage 3 Performance Engine

Description

Obsolete vintage powertrains require the ATK GM 350 330 HP HP291PC Stage 3 Performance Engine and its pre-assembled induction system. Command aggressive highway passing power during weekend cruise events. This build utilizes a completely dressed cast iron architecture to output three hundred thirty horsepower effortlessly.

Key Features of ATK GM 350 330 HP HP291PC

• Block Material: Cast iron Chevy Small Block ensures maximum structural integrity under the torque loads generated by 350 cubic inches.
• Cylinder Heads: High-performance cast iron cylinder heads maximize airflow capacity to generate reliable street performance.
• Induction System: The pre-installed carbureted intake manifold simplifies top-end assembly and provides immediate air delivery.
• Ignition System: The included HEI distributor delivers consistent high-voltage spark to prevent misfires under heavy load.
• Compression Ratio: A pump-gas friendly 9.1:1 compression ratio allows for safe and reliable daily street driving.

Component Breakdown: Turn-Key Complete Stage 3 Engine

This complete engine package arrives fully dressed from the intake manifold to the oil pan to eliminate sourcing individual modern accessories.

• A high flow carburetor sits atop a matched intake manifold while the included distributor and spark plug wires ensure immediate ignition out of the crate.
• A long style water pump and harmonic balancer complete the front drive assembly allowing builders to focus on chassis installation.

Vehicle Fitment & Compatibility Matrix

Designed for classic Chevrolet and GMC restomod projects this complete engine drops perfectly into vintage chassis. Sourcing one of our turn-key Chevy 350 crate engines modernizes your classic restoration instantly.

• Fits 1967-1981 Chevrolet Camaro models looking for an instant powertrain swap.
• Fits 1973-1987 Chevrolet C10 pickup trucks requiring a reliable and modern carbureted setup.
• Fits 1964-1972 Chevrolet Chevelle applications needing a reliable V8 foundation.
• Fits 1968-1974 Chevrolet Nova conversions requiring a 350 drop-in setup.

Fuel & Ignition System Requirements

Supplying adequate fuel pressure to this fully dressed small block platform requires capable supporting hardware.

• An upgraded high pressure mechanical or electronic fuel pump is required to supply the carburetor while utilizing 91 Octane premium pump gas prevents pre-ignition under load.
• The pre-installed distributor and spark plug wires mandate a clean twelve volt power source directly from the battery to guarantee a powerful spark.

Installation, Break-In Oil & Priming Instructions

Executing a flawless installation demands meticulous attention to fluid dynamics and proper flat tappet heat cycling.

• Before firing the engine builders must utilize a specialized tool to prime the oiling system manually ensuring fluid reaches the upper valvetrain completely.
• Fill the engine with a premium high zinc break in oil and hold the RPMs at two thousand for twenty minutes to break in the flat tappet camshaft.

USA Warranty, Emissions & Logistics

Protecting your investment requires understanding the specific logistics and legal compliance associated with this purchase.

• Backed by a strict 1-Year manufacturer warranty this complete long block offers extensive coverage against assembly defects when documented installation procedures are followed.
• This non-emissions compliant engine is designated for pre-emissions or off road Race Use Only and requires freight delivery to a commercial address with a forklift.