TorqueList Technical Reference
Windsor Small-Block
Ford 221 Windsor V8
The compact thin-wall V8 that started Ford's small-block Windsor lineage.
221
Cubic inches
TorqueList Original Technical Art
Ford 221 Windsor V8
V8 · N/A
Why it matters
Key takeaway
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
Engineering
Technical specification
- 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.
Builder reference
Internal Specifications
Variant-specific values are labeled. For engine families with multiple factory combinations, the exact RPO/code/year takes priority over the family summary.
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.
Factory fitment
Notable applications
Versions that matter
Key factory / build variants
221 2V
Original production version of Ford's new lightweight small-block V8.
1962–1963
145 hp gross reference
Strengths
- Compact external dimensions
- Lightweight thin-wall architecture for its era
- Foundation for later Windsor-family development
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
Builder notes
Engineering notes worth knowing
Ford Performance lists a 3.500-in bore, 2.870-in stroke, 2.249-in main journals and 2.123-in rod journals.
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
The story behind the engine
Before the 289 became a Mustang legend, Ford's new thin-wall small-block started at just 221 cubic inches.
Racing history
The 221 itself was primarily a passenger-car engine, but its architecture directly led to Ford's highly successful 260/289 racing programs.
Legacy
The first chapter of the Windsor small-block story.
Verification
Reference sources
Keep reading
Related stories
Origins
01How 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.
TorqueList independent reference · Not an OEM publication or endorsement. Original TorqueList editorial and layout rights reserved.
