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Ford 221 Windsor V8

V8 · N/A

3.6L

Ford · Windsor Small-Block

Ford 221 Windsor V8

The compact thin-wall V8 that started Ford's small-block Windsor lineage.

The 221 is the root of the Windsor small-block tree. It introduced the compact architecture that would become one of Ford's most important performance engine families.

Key variants

All variants221 2V

Displacement

221 ci

Bore

3.5"

Stroke

2.87"

Years

1962–1963

Key Takeaway

Ford's 221 established the compact 4.38-inch-bore-spacing small-block family that grew into the 260, 289 and 302.

Technical Specifications

Compression
8.7:1 (1962–1963 221 Challenger passenger-car specification)
Horsepower
145 hp gross in common early passenger-car trim
Torque
Varied by application
Architecture
90° OHV pushrod V8 · thin-wall Windsor small-block architecture
Block
Cast iron
Cylinder heads
Cast iron
Valvetrain
OHV · 2 valves per cylinder
Aspiration
Naturally aspirated
Fuel delivery
Carbureted
Firing order
1-5-4-2-6-3-7-8
Main bearings
5 main bearings

Ford's 221 established the compact 4.38-inch-bore-spacing small-block family that grew into the 260, 289 and 302.

Internal Specifications

Variant-specific values are labeled. Engine families that span multiple years or RPOs can have different heads, cams, induction and rotating parts, so the exact code/year always takes priority.

Identification & Output

Engine codes / RPO
L (221 CID 2-barrel V8 application code)
Casting numbers
C2OE / C2OE-G (1962 221 Windsor block references; two freeze plugs, five-bolt bellhousing), C3OE / C3OE-A (1963 221 Windsor block references)
Power rating
SAE gross (period factory rating)
Horsepower RPM
145 hp @ 4400 rpm (SAE gross)
Torque RPM
216 lb-ft @ 2200 rpm (SAE gross)

Rotating Assembly

Rod length
5.155 in
Balance
Internally balanced production architecture
Rear main seal
2-piece rear main seal
Deck height
8.206 in
Main journal
2.249 in
Rod journal
2.123 in

Operating Specs

Production notes
Introduced for the 1962 Fairlane as Ford's new lightweight thin-wall-cast small-block V8. The 221 was phased out during 1963 as the larger 260 gained demand; period/reference material places total production at roughly 371,000 engines.

Compatibility Notes

  • Many later 289/302 components share the Windsor architecture, but the small-bore 221 block has important cylinder-wall and bore limitations.

Notable Applications

1962–1963 Ford Fairlane1962–1963 Mercury Meteor

Strengths

  • Compact external dimensions
  • Lightweight thin-wall architecture for its era
  • Foundation for later Windsor-family development

Weaknesses / Watch-outs

  • Small 3.50-in bore limits breathing potential
  • Early block castings are not a substitute for later 289/302 blocks

Common Upgrades

  • Period-correct four-barrel induction
  • Ignition modernization
  • Cooling-system restoration

Racing History & Legacy

The 221 itself was primarily a passenger-car engine, but its architecture directly led to Ford's highly successful 260/289 racing programs.

The first chapter of the Windsor small-block story.

Key Factory / Build Variants

221 2V

1962–1963

145 hp gross reference

Original production version of Ford's new lightweight small-block V8.

Engineering Notes Worth Knowing

01

Ford Performance lists a 3.500-in bore, 2.870-in stroke, 2.249-in main journals and 2.123-in rod journals.

02

The 221/260 castings have less cylinder-wall material than the later 289, so they should not be treated as simple overbore candidates to 289 dimensions.

History · context · related reading

The Story Behind Ford 221 Windsor V8

Before the 289 became a Mustang legend, Ford's new thin-wall small-block started at just 221 cubic inches.

Origins

01

How the 221 became the Windsor family

The small 221 established the bore spacing, packaging and basic architecture later used by the 260, 289 and 302.

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