ATK Ford 502 Big Block 545 HP HP19M Stage 2 Engine

ATK HP19M 502 Big Block 545 HP Performance Engine

The ATK HP19M 545 HP Stage 2 engine is a high-output 8.2L Ford Big Block designed for those who demand maximum street power. Built on a rugged cast iron block and featuring high-flow aluminum cylinder heads, this assembly delivers a staggering 545 HP for elite performance applications. Every unit is internally balanced to provide the rotational smoothness and valvetrain stability necessary to handle the massive torque of this 502 cubic inch beast.

Developed for street/strip dominance and modern muscle car restorations, this Ford 502 Big Block 545 HP unit offers a high-utility Mid-Dress configuration. It comes pre-installed with a carbureted intake manifold, electronic distributor, and water pump, providing a clear path to completion for professional builders. This Windsor-family big block evolution requires high-octane fuel and a matched fuel system to support its advanced thermal mapping and high-performance valvetrain architecture.

Key Highlights of the HP19M 545 HP Build

• Massive 8.2L 502 displacement delivers an unmatched big-block torque foundation.
• High-flow aluminum cylinder heads optimize heat dissipation and airflow efficiency.
• Internal engine balance ensures smooth rotation even at high-performance RPMs.
• Rugged cast iron block construction provides maximum structural rigidity for power.
• Hydraulic flat tappet camshaft delivers an aggressive and reliable valve profile.
• Mid-dress package includes a performance intake manifold and electronic distributor.
• Integrated water pump and harmonic balancer significantly reduce total build time.
• Modern sealing technology ensures long-term reliability and leak prevention.
• Specifically engineered for high-output street-legal swaps and track-ready projects.
• Standard one-year warranty coverage provides essential protection for your investment.

Testing the HP19M 545 HP revealed a brutal acceleration curve that only a large-displacement Ford can provide. The internal balance makes the engine feel incredibly refined, while the aluminum heads ensure that performance stays consistent even in high-heat environments. It is the definitive choice for serious Big Block Ford enthusiasts.

Components Included with HP19M Mid-Dress

• Assembled Block and Aluminum Heads
• Carbureted Intake Manifold and Distributor
• Water Pump, Harmonic Balancer, and Flexplate
• Oil Pan, Valve Covers, and Timing Cover