Crankshaft Pulley - Serpentine - 6-Rib - 4.87 in Diameter - Underdrive - Hardware Included - Aluminum - Machined - GM LT-Series 1993-97 - Each

Under Drive Pulleys

This 1993-1997 GM LT1 BBK Performance Under-drive Crank Pulley is designed as a piggy back for the OE factory harmonic dampener. It is a direct bolt on pulley and will retain full cooling and charging characteristics. This BBK under drive crank pulley kit is an easy way to free up an average 8-12 horsepower in under 30 minutes. Each kit comes with complete installation instructions and hardware.

Additional Information

Power-Plus Series® Underdrive Crank Pulley; CNC Machined Billet Aluminum; Crank Pulley Only; Incl. All Required Hardware;

Part Type

Engine Under Drive Pulley Kit

• Easy way to add up to an average of 8-12 horsepower - Requires a new serpentine belt. (Dayco #5060595 or Gates #K060594).
• Made In The USA

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Pulley, Serpentine, Aluminum, Polished, Chevy, Small Block, Each

BBK Performance underdrive pulley kits are built from aircraft-quality, computer-machined steel or aluminum alloy. By reducing the speed of the accessories, these underdrive pulleys free up an average of 8 to 15 hp, while retaining full cooling and charging characteristics. Most pulley kits can be bolted on in less than 30 minutes.