Chevy Small Block Short Water Pump Single-Groove Aluminum Crankshaft Pulley - Satin

• Fits Chevy small block short water pump accessory drive applications

• V-belt, 1-groove aluminum design, 6.600" OD for single-belt front drives

• Standard-drive ratio only — not built for underdrive or overdrive accessory systems

• Satin-finished aluminum resists corrosion for a clean front-drive look

This crankshaft pulley is machined from aluminum with a satin finish, built for Chevy small block accessory drive systems running a short water pump and a single V-belt. It's a 1-groove pulley with a 6.600" outside diameter — the dimensions that determine belt routing, accessory spacing, and pulley alignment on a front drive using just one belt (for example, a setup running only an alternator or power steering off the crank, without a second belt-driven accessory sharing the same pulley).

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 short water pump, and that your accessory drive is set up for a single V-belt rather than dual-groove routing.

The aluminum body's satin finish adds corrosion resistance and a clean, non-reflective appearance under the hood. As with any crank pulley swap, verify mounting hardware, shaft fit, and belt alignment before installation.

Applications
Built for Chevy small block short water pump accessory drive systems running a single V-belt, including Camaro, Nova, Chevelle, C10/K10 truck platforms, Impala, El Camino, and Monte Carlo applications on a standard-drive (non-underdrive, non-overdrive) setup.

Installation
Confirm short vs. long water pump configuration, and that your accessory drive uses a single-groove belt layout rather than dual-groove — this pulley is 1-groove only. Match belt width and pulley offset to your existing components, and verify shaft/bore fit before mounting. Mounting hardware is not included.

Is this a single-belt or dual-belt crankshaft pulley?
This is a single-groove pulley designed for accessory drives using one V-belt. If your accessory drive requires two belts from the crankshaft pulley, a 2-groove pulley will be required.

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

Is this pulley underdrive, overdrive, or standard ratio?
Standard ratio. It's not an underdrive or overdrive design, so it keeps accessories running at factory-style speed.

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

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

What vehicles commonly use this crankshaft pulley?
It can be used on compatible Small Block Chevy applications such as the Camaro, Nova, Chevelle, C10/K10, Impala, El Camino, and Monte Carlo when equipped with a short water pump and compatible single 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.