Chevy Big Block Long Water Pump Triple-Groove Steel Crankshaft Pulley - Black
Chevy Big Block Long Water Pump Triple-Groove Steel Crankshaft Pulley - Black
SKU: SKU: SP8961BK
Out of stock

Product Details
Features
- Blak steel finish for a clean, classic front-drive look
- 3-groove V-belt design for standard big block accessory drive routing
- 7.800" OD, 3-bolt pattern — larger diameter than TSP's aluminum version
- Fits Chevy big block long water pump configuration only
Description
Complete your Chevy big block accessory drive with this 3-groove V-belt crankshaft pulley, sized at 7.800" outside diameter with a 3-bolt hole pattern. Steel construction with a black finish supports consistent belt tracking and a clean, classic front-drive appearance.
This pulley is designed for long water pump configurations only — short water pump setups use a different pulley, so verify your engine's configuration before ordering. Note this pulley's 7.800" diameter is larger than TSP's aluminum long water pump pulley (6.600" OD) — confirm which diameter your accessory drive ratio requires before ordering. Nose cover and hardware are not included; sold individually.
Applications
Fits Chevy Big Block V8 (402–454 style accessory drive), long water pump configuration: V-belt, 3-groove, 7.800" OD, 3 bolt holes. Common on Chevelle, Camaro, Corvette, C10/C20 trucks, Impala, El Camino, and Monte Carlo big block applications.
Installation
Verify long vs. short water pump setup, belt width, pulley offset, and groove alignment before installation. Confirm which outside diameter your accessory drive ratio requires, since TSP offers this pulley in multiple diameters. Nose cover and hardware not included; sold individually.
Specs
| Pulley Style | V-Belt |
| Groove Quantity | 3 |
| Water Pump Style | Long |
| Bolt Hole Quantity | 3 |
| Pulley Material | Steel |
| Outside Diameter | 7.800" |
| Underdrive | No |
| Overdrive | No |
| Nose Cover | Not Included |
| Hardware | Not Included |
| Quantity | Sold Individually |
Engine Fitment
COMPATIBLE WITH
Chevrolet Big Block V8 Gen. II (Mark IV)
• 6.5L / 396 in³
• 6.6L / 402 in³
• 7.0L / 427 in³
• 7.4L / 454 in³
NOTES
• Fits big block Chevy long water pump engines.
• Verify long vs. short water pump setup, belt width, pulley offset, and groove alignment before installation.
• Nose cover and hardware not included; sold individually.
COMMON VEHICLE APPLICATIONS
Chevrolet Chevelle / Camaro / Corvette
Chevrolet C10 / C20 truck applications
Chevrolet Impala / El Camino / Monte Carlo
Q&A
What's the difference between this pulley and TSP's aluminum long water pump pulley?
This pulley is steel with a black finish and measures 7.800" in outside diameter. TSP's aluminum version has a black finish and measures 6.600" in outside diameter. Verify the pulley diameter required for your accessory drive and desired drive ratio before ordering.
Will this fit a short water pump Big Block Chevy?
No. This pulley is designed for long water pump configurations only. Short water pump setups require a different pulley.
Does this come with a nose cover or mounting hardware?
No. A nose cover and mounting hardware are not included. The pulley is sold individually.
How many belt grooves does this pulley have?
This pulley has 3 grooves and is designed for V-belt accessory drive systems.
What's the outside diameter of this pulley?
7.800" outside diameter with a 3-bolt mounting pattern.
Will this fit my Chevelle or Camaro Big Block?
Yes, for compatible Big Block Chevy applications using a long water pump accessory drive. Verify your water pump, pulley alignment, and accessory drive configuration before ordering.
Emissions Notice
This product does not affect vehicle emissions and is not subject to emissions compliance regulations.
Chevy Big Block Long Water Pump Triple-Groove Steel Crankshaft Pulley - Black
Complete your Chevy big block accessory drive with this 3-groove V-belt crankshaft pulley, sized at 7.800" outside diameter with a 3-bolt hole pattern. Steel construction with a black finish supports consistent belt tracking and a clean, classic front-drive appearance.
This pulley is designed for long water pump configurations only — short water pump setups use a different pulley, so verify your engine's configuration before ordering. Note this pulley's 7.800" diameter is larger than TSP's aluminum long water pump pulley (6.600" OD) — confirm which diameter your accessory drive ratio requires before ordering. Nose cover and hardware are not included; sold individually.
Applications
Fits Chevy Big Block V8 (402–454 style accessory drive), long water pump configuration: V-belt, 3-groove, 7.800" OD, 3 bolt holes. Common on Chevelle, Camaro, Corvette, C10/C20 trucks, Impala, El Camino, and Monte Carlo big block applications.
Installation
Verify long vs. short water pump setup, belt width, pulley offset, and groove alignment before installation. Confirm which outside diameter your accessory drive ratio requires, since TSP offers this pulley in multiple diameters. Nose cover and hardware not included; sold individually.
COMPATIBLE WITH
Chevrolet Big Block V8 Gen. II (Mark IV)
• 6.5L / 396 in³
• 6.6L / 402 in³
• 7.0L / 427 in³
• 7.4L / 454 in³
NOTES
• Fits big block Chevy long water pump engines.
• Verify long vs. short water pump setup, belt width, pulley offset, and groove alignment before installation.
• Nose cover and hardware not included; sold individually.
COMMON VEHICLE APPLICATIONS
Chevrolet Chevelle / Camaro / Corvette
Chevrolet C10 / C20 truck applications
Chevrolet Impala / El Camino / Monte Carlo
SPECIFICATIONS
Pulley Style: V-Belt
Groove Quantity: 3
Water Pump Style: Long
Bolt Hole Quantity: 3
Pulley Material: Steel
Outside Diameter: 7.800"
Underdrive: No
Overdrive: No
Nose Cover: Not Included
Hardware: Not Included
Quantity: Sold Individually