This CVF Racing adapter lets a Ford small block with a 3 bolt damper run a 4 bolt crankshaft pulley. It is machined from billet aluminum and sets the pulley 0.925" out from the damper so a factory 4 bolt pulley or a CVF Racing SBFL series pulley can be used.
CVF lists the adapter for 289, 302 and 351W engines that use a water pump with the lower radiator hose on the driver's side. For that setup CVF gives a distance of 4 1/4" from the damper face to the water pump flange face.
Specifications:
- Material: Billet aluminum
- Finish: Polished
- Diameter: 4.4"
- Thickness: 0.925"
- Bolt pattern: 3 bolt and 4 bolt
- Damper: OEM or aftermarket 3 bolt
- Water pump: Driver's side lower radiator hose
- Damper face to water pump flange face: 4 1/4"
- Engine: Ford 289, 302 and 351W small block
- Part number: 3-4-SBF-SPACER
Kit Includes:
- One billet aluminum 3 bolt to 4 bolt crank pulley adapter
Application Notes:
- Pairs with factory Ford 4 bolt crank pulleys or CVF Racing SBFL series pulleys.
- CVF describes the application as 289, 302 and 351W engines with a 3 bolt damper, factory or aftermarket.
Additional Application Note: CVF lists this for 1969 1/2 and later Ford passenger cars and 1977 and later Ford trucks with 289, 302 or 351W engines. CVF does not name specific models, and engines are often swapped, so confirm the lower radiator hose side and damper bolt pattern before ordering.
FAQ
What does the CVF Racing 3-4-SBF-SPACER do?
It adapts a 3 bolt crankshaft damper so it can accept a 4 bolt crank pulley on a Ford 289, 302 or 351W small block.
How thick is this crank pulley adapter?
The adapter is 0.925" thick with a 4.4" diameter, and it carries both 3 bolt and 4 bolt patterns.
Which pulleys work with this adapter?
CVF lists factory Ford 4 bolt pulleys and CVF Racing SBFL series pulleys for use with this spacer.
What water pump setup is it designed for?
CVF specifies a water pump with the lower radiator hose on the driver's side, with 4 1/4" from the damper face to the water pump flange face.
