This CVF Racing water pump pulley is a 1 groove V-belt design machined from billet aluminum and finished in stealth black, built for Ford 385 series big block 429 and 460 engines. It measures 5.4 in across and mounts with a 4 bolt pattern on a 1.75 in bolt circle, with a pilot that accepts 5/8 in and 3/4 in water pump hubs.
CVF labels this pulley a high flow ratio design. At 5.4 in it is smaller than CVF's standard 1 groove big block Ford water pump pulley, so the pump turns faster relative to the crank.
Specifications:
- Grooves: 1
- Ratio: High flow
- Diameter: 5.4 in
- Overall length: 2.3 in
- Bolt pattern: 4 bolt
- Bolt circle: 1.75 in
- Pilot diameter: 5/8 in and 3/4 in
- Belt type: V-belt
- Material: Billet aluminum
- Finish: Stealth Black
- Engine: Ford 429 and 460 big block (385 series)
- Part number: B-BBFL1WP-HF
Application Notes:
- Requires the factory 4 bolt damper.
- Requires a 1970 or newer water pump.
- Designed around a damper face to water pump flange face distance of 3 1/16 in.
- Does not fit the Boss 429, per CVF.
Additional Application Note: CVF lists this pulley for Ford 385 series big block engines (429 and 460) used in 1968 to 1987 Ford passenger cars and trucks. CVF does not name specific vehicle models, so confirm your engine setup against the requirements above.
FAQ
What engines does this water pump pulley fit?
CVF lists it for Ford 385 series big block 429 and 460 engines in 1968 to 1987 Ford passenger cars and trucks. It does not fit the Boss 429.
What does high flow ratio mean on this pulley?
CVF uses a smaller 5.4 in diameter on its high flow ratio pulley, which spins the water pump faster than its standard pulley does.
What are the mounting dimensions?
It uses a 4 bolt pattern on a 1.75 in bolt circle, and the pilot works with both 5/8 in and 3/4 in water pump hubs.
What water pump is required?
CVF requires a 1970 or newer water pump along with the factory 4 bolt damper and a 3 1/16 in damper face to water pump flange face distance.
Is it available in another finish?
Yes. CVF offers the same pulley in polished as part number BBFL1WP-HF.

