Ford Small Block Triple-Groove Steel Crankshaft Pulley - Chrome

• Fits Ford small block long water pump accessory drive applications

• V-belt, 3-groove aluminum design, 6.600" OD for multi-accessory front drives

• 3-bolt hub bolts to standard-drive setups without changing accessory ratio

• Chrome-finished aluminum resists corrosion for a bright, polished look

This crankshaft pulley is machined from aluminum with a chrome finish, built for Ford small block accessory drive systems running a long water pump and three separate V-belts. It's a 3-groove pulley with a 6.600" outside diameter — the dimensions that determine belt routing, accessory spacing, and pulley alignment on a front drive running multiple belt-driven accessories, such as an alternator, power steering pump, and A/C compressor each on their own belt.

The 3-bolt hole pattern is built to standard-drive spec — not underdrive or overdrive — so accessories run at factory-style speed rather than a modified ratio. Before ordering, confirm your engine uses a long water pump configuration, and that your accessory drive is set up for three separate V-belts. Match groove count, belt style, bore size, and pulley offset to your current components before installation.

The chrome-finished aluminum body adds corrosion resistance along with a bright, polished appearance under the hood. As with any crankshaft pulley swap, verify mounting hardware, shaft fit, and belt alignment before installation.

Applications
Built for Ford small block long water pump accessory drive systems running three V-belts, including Mustang, Falcon, Fairlane, F-100/F-150 truck platforms, and Mercury Cougar/Comet applications on a standard-drive setup.

Installation
Confirm your engine uses a long water pump configuration and that your accessory drive uses a triple-groove belt layout — this pulley is 3-groove only. Verify pulley depth, accessory spacing, belt width, and water pump/accessory configuration before ordering. Mounting hardware is not included.

Does this pulley fit a short water pump Small Block Ford?
No. This pulley is designed for long water pump accessory drive configurations only. Short water pump setups use different pulley spacing and require a compatible short water pump pulley.

How many belts does this crankshaft pulley run?
This is a 3-groove pulley designed for V-belt accessory drive systems. The three grooves allow multiple accessory belts to be driven from the crankshaft pulley.

Is this an underdrive or overdrive pulley?
Neither. This is a standard-drive pulley and is not designed specifically as an underdrive or overdrive pulley.

What's the outside diameter of this pulley?
6.600" outside diameter with a 3-bolt mounting pattern.

Is this pulley aluminum or steel?
According to the published specifications, this pulley is constructed from aluminum with a chrome finish.

Does this come with mounting hardware?
No. Mounting hardware and a nose cover are not included. The pulley is sold individually.

What vehicles commonly use this crankshaft pulley?
It can be used on compatible Small Block Ford applications such as the Mustang, Falcon, Fairlane, F-Series trucks, Mercury Cougar, and Comet when equipped with a long water pump and compatible V-belt accessory drive.

Will this pulley affect emissions compliance?
This is a mechanical accessory drive component and does not directly modify the engine's emissions-control system.