Description
Product Overview
The March Performance 4030 pulley set is engineered for classic GM small‑block applications, specifically 1985‑87 Camaro, Firebird, Monte Carlo and related truck engines. It comprises a six‑rib serpentine crankshaft pulley, a water pump pulley, and an alternator pulley, all finished in a clear powder‑coated surface that resists chips, corrosion and UV exposure. Weighing just six pounds, the compact dimensions (4 x 10.5 x 16 inches) make installation straightforward while maintaining robust durability. The OEM part numbers (4030) ensure a perfect fit without the need for modifications.
Usage
This pulley set is ideal for enthusiasts seeking reliable belt drive performance in street or track environments. Whether rebuilding a classic Camaro engine, restoring a Firebird, or upgrading a GM truck, the set provides consistent tension and smooth operation for the accessory drive system. It is suited for daily driving, weekend track days, and performance builds where maintenance‑free reliability is essential.

Why Choose Us
March Performance is renowned for precision engineering and high‑quality materials. Our powder‑coating process delivers a finish that outlasts traditional paint, eliminating the need for frequent re‑coating. Each component undergoes rigorous testing to meet OEM specifications, guaranteeing a seamless fit and long‑term durability. Backed by a reputation in the automotive performance market, we provide confidence that your engine accessories will perform reliably under demanding conditions.
Key Features
- Includes 6‑rib serpentine crankshaft, water pump and alternator pulleys for complete accessory drive.
- Clear powder‑coated finish offers corrosion resistance and a maintenance‑free surface.
- Exact OEM fit for 1985‑87 Camaro, Firebird, Monte Carlo and GM truck small‑block Chevy engines.
- Lightweight construction (6 lb) simplifies installation without sacrificing strength.
- Manufactured by March Performance, a trusted name in automotive performance parts.
FAQ
Will this pulley set fit a 1990 Camaro?
No, the set is specifically engineered for 1985‑87 small‑block Chevrolet engines. For later models, a different part number is required.
Do I need to remove the old pulleys before installing?
Yes, remove the existing crankshaft, water pump and alternator pulleys to ensure proper alignment and torque specifications during installation.
Is the powder coating durable enough for track use?
Absolutely. The clear powder coating is designed to withstand high temperatures, road debris and repeated belt tension cycles typical of track environments.
Can I install the set myself?
With basic hand tools and a torque wrench, a DIY enthusiast can install the set. Follow the included service manual for torque specs and alignment procedures.
What is the warranty on this product?
March Performance offers a limited one‑year warranty against manufacturing defects, ensuring you receive a quality product.





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