Chevy Big Block Long Water Pump Upgraded Alternator Bracket - Black

Upgrade your accessory drive system with this Chevy Big Block Long Water Pump Upgraded Alternator Bracket featuring a black finish and precision-machined billet aluminum construction. Designed for compatible Big Block Chevrolet engines equipped with a long water pump, this bracket provides secure alternator mounting while creating a cleaner, more organized accessory drive layout and engine bay appearance.

This Big Block Chevy alternator bracket is engineered for GM 10SI alternator applications and helps maintain proper alternator positioning and belt alignment during street driving, restoration projects, marine applications, and performance builds. The upgraded upper and lower bracket design provides increased mounting support while integrating with compatible Big Block Chevrolet accessory drive layouts.

Whether you're replacing worn alternator mounting hardware on a 396, 402, 427, 454, or 502 Big Block Chevy engine, or completing a fresh engine build, this long water pump alternator bracket delivers dependable performance and black billet styling. Its precision-machined billet aluminum construction is designed to withstand engine vibration and normal accessory drive loads while maintaining a professional appearance under the hood.

Popular among muscle car, street rod, truck, marine, and restoration enthusiasts, this BBC alternator bracket is an excellent choice for compatible Mark IV, Gen V, and Gen VI Big Block Chevrolet applications requiring a passenger-side GM 10SI alternator mounting solution. The black finish complements both factory-style restorations and custom performance builds while helping create a clean and organized accessory drive system.

Application-Specific Mounting
Designed around the specified engine and accessory drive layout to help maintain proper alternator positioning and belt alignment.

Durable Billet Aluminum Construction
Manufactured from billet aluminum to provide strength, durability, and reliable alternator support in street, restoration, marine, and performance applications.

Black Engine Bay Appearance
The black finish enhances engine compartment appearance and complements restoration, muscle car, street rod, truck, marine, and custom performance builds.

Passenger-Side Alternator Mounting
Positions the alternator on the passenger side of the engine for compatibility with the specified accessory drive layout.

COMPATIBLE WITH
CHEVROLET BIG BLOCK V8 GEN. II (MARK IV)
• 6.5 L / 396 in3
• 6.6 L / 402 in3
• 7.0 L / 427 in3
• 7.4 L / 454 in3
• 8.2 L / 502 in3

CHEVROLET BIG BLOCK V8 GEN. V
• 7.4 L / 454 in3
• 8.2 L / 502 in3

CHEVROLET BIG BLOCK V8 GEN. VI
• 7.4 L / 454 in3
• 8.2 L / 502 in3

NOTE:
Requires a long water pump.
Passenger-side alternator mounting position.
Requires standard BBC accessory mounting holes in the passenger-side cylinder head.
Designed for GM 10SI-style alternators.

COMMON VEHICLE APPLICATIONS
• Chevrolet Silverado 1500 / 2500 / 3500
• GMC Sierra 1500 / 2500 / 3500
• Chevrolet Tahoe / Suburban
• GMC Yukon / Yukon XL
• Chevrolet Camaro / Corvette (LS equipped)
• Pontiac GTO / G8 (LS equipped)

SPECIFICATIONS
Accessory Type: Alternator
Alternator Style: GM 10Si
Finish: Black
Bracket Type: Upper & Lower
Water Pump Style: Long Neck
Mounting Position: Passenger Side
Upper Mounting: Water Pump & Cylinder Head
Lower Mounting: Water Pump
Bracket Material: Billet Aluminum
Hardware: Included