The Ultimate 302 EFI Crate Engine for Ford Performance Builds

The ATK HP78C-EFI 302 crate engine delivers modern EFI performance in a complete Stage 3 package that’s ready to transform your classic Mustang, hot rod, or Ford truck build . As part of our extensive Ford Windsor collection, this 5.0L/302 cubic inch V8 produces an impressive 365 horsepower and 380 lb-ft of torque—while the FiTech Self-Learning EFI system provides trouble-free cold starts and optimal drivability regardless of elevation, driving habits, or modifications .

Whether you’re building a weekend cruiser, a street machine, or a show-winning classic, this ATK 302 EFI crate engine delivers the power, reliability, and modern drivability that Ford enthusiasts demand.

What Makes the ATK 302 EFI the Ultimate Windsor Crate Engine?

The HP78C-EFI is engineered for enthusiasts who want maximum performance with modern EFI convenience. Built on a seasoned 1987-1995 OE roller block with Dart Pro 1 aluminum cylinder heads, this 302 Windsor is built to perform. ATK hand-assembles and balances each engine using top-quality parts to help them produce awesome power .

The standout feature is the FiTech Self-Learning EFI system—a system that eliminates the need for tuning regardless of elevation or modifications. The engine comes complete from throttle body down to the oil pan, and is dyno-tested with your EFI system and ready to go . All you need to supply is the fuel system—in-line, in-tank, or the FiTech Fuel Command Center .

302 EFI Horsepower and Torque Figures

This 302 crate engine produces impressive output:

• 365 horsepower – dyno tested and verified 

• 380 lb-ft torque – strong mid-range power for street driving 

• 9.5:1 compression ratio – pump gas friendly 

• Hydraulic roller cam – low maintenance, excellent durability 

Complete 302 EFI Engine Specifications

Seasoned OE Roller Block

The foundation of this ATK 302 crate engine is a seasoned 1987-1995 OE roller block featuring :

• 4.040-inch bore x 3.000-inch stroke

• 302 cubic inch displacement

• OE Ford cast crankshaft with 1-piece rear main seal

• 50 oz. external engine balance 

• OE steel connecting rods with stock bolts 

• Hypereutectic pistons with moly rings 

• 9.5:1 compression ratio

Dart Pro 1 Aluminum Cylinder Heads

The Dart Pro 1 aluminum cylinder heads provide exceptional flow :

Hydraulic Roller Camshaft Specifications

FiTech EFI System

The FiTech Self-Learning EFI system includes :

• Self-learning technology – no tuning required

• Complete fuel delivery system

• Dyno-tested with your EFI system 

What’s Included with Your HP78C-EFI Crate Engine

The HP78C-EFI comes as a complete Stage 3 dressed engine with the following components included :

Important Note: The fuel pump is not provided – you must run an electric pump or mechanical pump with the FiTech Fuel Command Center . The engine also features a 350 HP rating in some listings .

Installation Notes and Critical Considerations

Important Notes Before Installation

Before installing your ATK HP78C-EFI crate engine, review these critical notes :

• Octane requirement: 91+ premium fuel required

• Exhaust: 1-5/8″ headers recommended

• Stall converter: 2400-2800 RPM recommended for automatic transmission

• Spark plug gap: .035″

• Total timing: 34-36 degrees

• Firing order: 1-3-7-2-6-5-4-8 (5.0L HO/351W order) 

• Oil: 10W30 conventional (non-synthetic) during break-in

• Vacuum: Works with power accessories 

Recommended Components

For optimal performance, ATK recommends :

• Balancer: External 50 oz.

• Flexplate/Flywheel: External balance 50 oz.

• Fuel Pump: Holley Mechanical 110gph or electric with FiTech system

• Oil Filter: Wix or K&N

Fuel System Requirements

The FiTech EFI system requires a fuel supply. ATK recommends using either :

• An electric fuel pump (in-line or in-tank)

• The FiTech Fuel Command Center (a self-contained fuel reservoir system)

Break-In Procedure

ATK recommends the following break-in procedure :

• Use conventional (non-synthetic) 10W30 oil with zinc additive for the first 500 miles

• Do not drive for long periods at any single speed – vary your speed

• Do not tow a trailer or put heavy loads on the vehicle

• Check engine oil and coolant levels daily

• At 500 miles, change oil and filter using conventional (non-synthetic) oil

• After the first 5,000 miles, synthetic engine oil may be used

Core Return Information

A core charge of $410.00 applies . Core return can be any Small Block Ford 302ci engine .

Emissions Compliance

Non-Emissions: This product does not require an Executive Order in California. By nature of its design, it is legal for sale and use in all 50 states . Not for use in pollution-controlled vehicles .

Warranty

ATK High Performance backs the HP78C-EFI with a 2-year / unlimited mileage warranty .

ATK HP78C-EFI Engine FAQs

What is the horsepower and torque of the HP78C-EFI?

The ATK HP78C-EFI produces 365 horsepower and 380 lb-ft of torque .

What vehicles is the HP78C-EFI compatible with?

The HP78C-EFI is a direct replacement for Ford vehicles originally equipped with small-block Windsor 302 V8s . Compatible applications include 1965-1996 Ford Mustang and 1974-1978 Mustang II .

What’s included with the HP78C-EFI?

The HP78C-EFI is a complete Stage 3 dressed engine including the block, Dart Pro 1 aluminum heads, OE rotating assembly, FiTech EFI system, intake manifold, distributor, water pump, damper, flexplate, oil pan, valve covers, timing cover, spark plugs, and wires. Fuel pump is not included .

What fuel does the 302 EFI require?

91+ octane premium fuel is required for optimal performance .

What is the warranty on the HP78C-EFI?

ATK High Performance backs the HP78C-EFI with a 2-year / unlimited mileage warranty .

Is the HP78C-EFI emissions legal?

Non-Emissions: This product is legal for sale and use in all 50 states but is not for use in pollution-controlled vehicles .