Description
Product Overview
The A-Premium crankshaft pulley is crafted from high‑grade black aluminum, delivering a lightweight yet exceptionally strong component for Small Block Chevrolet V8 engines. With a 6.6 inch overall diameter, two precisely machined grooves, and a three‑bolt mounting pattern (0.43 inch bolt circle), it matches the original equipment specifications (OEM 8857BK). The pulley’s design promotes optimal belt tension, reduces vibration, and enhances overall engine durability, making it a reliable replacement for engines ranging from 262 to 400 cubic inches.
Usage
Designed for classic Chevrolet models built between 1969 and 1985, this pulley fits engines with long water pumps and is ideal for street driving, weekend track days, and restoration builds. Whether you are rebuilding a vintage hot rod or performing routine maintenance on a daily driver, the A-Premium pulley provides the exact fit and performance needed for smooth operation. 
Why Choose Us
A-Premium combines rigorous engineering with premium materials to exceed OE standards. Each pulley undergoes CNC machining and a thorough quality inspection to guarantee dimensional accuracy and surface finish. Backed by a one‑year unlimited‑mileage guarantee, the product reflects our commitment to longevity and customer confidence, distinguishing it from generic aftermarket alternatives.
Key Features
- Durable black aluminum construction resists corrosion and heat.
- Exact OE dimensions: 6.6″ diameter, 2 grooves, 3‑bolt pattern.
- Optimized belt tension reduces wear on accessory drives.
- Fits Small Block Chevrolet V8s from 262‑400 cu in with long water pump.
- One‑year unlimited‑mileage warranty for peace of mind.
FAQ
Does this pulley fit a 350 cubic inch Chevrolet engine?
Yes, the pulley is compatible with 350 cu in Small Block Chevrolet engines that use a long water pump configuration.
What material is the pulley made from?
The pulley is forged from high‑quality black aluminum, offering a balance of light weight and strength.
How many bolts are required for installation?
Installation uses three bolts with a 0.43 inch bolt circle, matching the original equipment pattern.
Is this part covered by a warranty?
Yes, A‑Premium provides a one‑year unlimited‑mileage guarantee on this crankshaft pulley.
Can this pulley be used on engines with a short water pump?
No, this specific model is designed for engines equipped with a long water pump; using it with a short pump may cause misalignment.





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