Holley Serpentine Belt Tensioner Pulley - Billet Aluminum - Black - Chevy Small Block R040003S This gas pressure shock allows

This gas pressure shock allows racer to change pressure to his/her preference

lines allows additional clearance and freedom that the original

suitable for engines making up to 4000 HP

Transmission Mesh Gear

Holley Serpentine Belt Tensioner Pulley - Billet Aluminum - Black - Chevy Small Block R040003S This gas pressure shock allowsProduct Description: Belt Tensioner Pulley Serpentine Billet Aluminum Black Anodized Chevy Small Block Sold Individually For over a century Holley has driven the cutting edge of fuel system design. That work continues today through Holleys market leading EFI products as well as through Holleys family of best in industry brands. Top brands like MSD, Flowmaster, Hurst, Accel, and many more make up the industrys leading offering of enthusiast driven