Ford 302 Engine for Sale | OEM Used 5.0L Windsor Small Block V8

Description

Engine Background

The Ford 302 is one of the most important small block V8 engines Ford ever produced. Born in 1968 by stroking the proven 289 to a 3.00 inch stroke, the 302 was created specifically to meet the FIA 5.0-liter displacement limit for endurance racing, the same limit that allowed the GT40 to compete at Le Mans. In its debut year the 302 powered the GT40 to victory at Le Mans and was simultaneously made available in the Mustang, establishing a dual racing-and-street identity it never lost.

In 1969 and 1970 the Boss 302 Mustang used a unique high-revving version of the engine with Cleveland-style canted valve heads, solid lifters, and 4-bolt main caps, rated conservatively at 290 hp but producing significantly more in Trans-Am racing trim. The Boss 302 secured the 1970 SCCA Trans-Am Manufacturers Championship for Ford.

In its later life as the 5.0 HO in Fox Body and SN95 Mustangs from 1982 to 1995, the 302 became the foundation of an entire generation of American performance car culture. The factory roller camshaft from 1985 and sequential EFI from 1986 transformed it into a modern performance engine that remains one of the most modifiable V8s ever built. Call (240) 306-7051 to confirm which variant matches your project.

When Replacement Becomes Necessary

• Oil burning on startup, valve stem seal wear on older flat-tappet engines
• Timing chain noise at cold start, worn chain on pre-1982 engines
• Knocking under load, rod or main bearing wear on high-mileage units
• Loss of compression on one or more cylinders, ring wear or scored walls
• Oil leaks at the rear main seal, the two-piece pre-1982 seal is a known seep point
• EFI hesitation or rough idle not resolved by basic tune, mass airflow sensor or injector wear on 5.0 HO units

Known Issues We Document Before Shipping

• Nylon cam gear failure on pre-1985 flat-tappet engines: early 302 engines used a nylon timing gear that degrades with age and heat and can fail suddenly. We check timing gear condition during inspection.
• Flat-tappet cam wear: pre-1985 302 engines need ZDDP zinc additive in the oil. Many were run for years with modern low-zinc oil. We inspect and report on valvetrain condition indicators.
• E7TE head flow limitation: the 1987 to 1995 5.0 HO used E7TE cast iron heads, adequate in stock form but a restriction in performance builds. We note head casting for every unit.
• TBI versus SEFI fuel system: some 1980 to 1985 302 engines used throttle body injection. 1986 onward used superior sequential multi-port EFI. We confirm the fuel system type before shipping.
• Boss 302 identification: both Cleveland-style canted valve heads and 4-bolt main caps are required to confirm a genuine Boss 302 unit. We document this thoroughly.

Ford 302 Variants by Year and Application

The 302 went through several significant evolutions across its 33-year production run:

What Ships and What Does Not

Direct-Fit Vehicle Applications

Search Terms Buyers Use

Not sure if this fits? Call us at (240) 306-7051. We verify year, cam type, and fuel system before every order ships.

Used OEM Versus Specialist Rebuild

For a classic Mustang, Fox Body, F-150, Bronco, or full-size Ford restoration on a reasonable budget, a documented used 302 with year and fuel system verified is the cost-effective path. For a performance build targeting 400-plus horsepower from a 302 platform, a specialist rebuild with aluminum heads (AFR, TFS, Edelbrock), a hydraulic roller cam, and supporting hardware is the better foundation. Built 302s with aluminum heads and a roller cam typically run $5,500 to $8,500 from established Ford specialist shops.

Inspection Workflow

• Compression test logged across all 8 cylinders with uniformity reported
• Year and cam type documented: flat-tappet (pre-1985) or roller (1985 onward)
• Fuel system identified: carbureted, TBI, or SEFI
• Nylon cam gear status checked on pre-1985 units
• Head casting documented (E7TE on 1987 to 1995 5.0 HO, others on earlier units)
• Main cap configuration noted (2-bolt standard, 4-bolt on Boss 302)
• External oil leak survey at valve covers, front and rear seals (especially the two-piece pre-1982 rear main), oil pan

Pre-Purchase Buyer Notes

• Match firing order at installation: the 302 fires 1-5-4-2-6-3-7-8. The 351 Windsor fires 1-3-7-2-6-5-4-8. These are different. Using 351W plug wire routing on a 302 (or vice versa) causes severe misfiring.
• Use ZDDP additive on flat-tappet cams: pre-1985 302s require high-zinc oil. Modern low-zinc oils accelerate cam lobe wear.
• Plan a nylon timing gear refresh on pre-1985 units: the factory nylon timing gear is a known failure point. Replacing it with a steel gear at installation is inexpensive insurance.
• Match fuel system to your application: a carbureted 302 in an EFI chassis requires fuel system conversion. A SEFI 302 in a carbureted chassis is simpler but requires fuel pump and tank changes.
• Plan rear main seal service on pre-1982 units: the two-piece rear main seal is a known seep point. Upgrade to a one-piece seal kit at installation.

Why Buy From Part Nests

• Year and cam type documented before payment
• Fuel system identified: carbureted, TBI, or SEFI
• Head casting recorded (E7TE on 1987 to 1995 5.0 HO)
• Main cap configuration noted (4-bolt on Boss 302 specifically)
• Nylon cam gear status checked on pre-1985 units
• All 8 cylinders compression-tested with uniformity reported
• No core return required
• Free freight delivery to every state
• 15 day replacement warranty against internal defects
• Call (240) 306-7051 to speak with someone who knows 302 versus 351W firing order differences, 5.0 HO Fox Body variants, and Boss 302 identification