Blower Drive Service Gilmer/HTD Supercharger Idler Pulley 3" Wide 4.300" Diameter Aluminum - Polished 923214 Our valve covers are produced

Our valve covers are produced from a high grade aluminum that is polished to Billet Specialties standards and each design is CNC machined in the USA

Adapters allow bolting an early GM 3-bolt engine mount to the late model LS style block with a 4-bolt pattern

high numbers for easy identification

Patented VacPipe cooling integrated heat sink allows for plug & play installation as easy as replacing a stock bulb

400 in Long

Blower Drive Service Gilmer/HTD Supercharger Idler Pulley 3" Wide 4.300" Diameter Aluminum - Polished 923214 Our valve covers are producedProduct Description: Supercharger Idler Pulley Gilmer HTD 3 in Wide 3. 425 in Diameter Aluminum Polished Blower Drive Service Supercharger Superchargers are one of the most popular engine additions for those who desire big performance gains. Blower Drive Service offers every aspect of super charging. Whether you? re looking for complete kits or a certain piece for your existing setup, BDS is the company to look to.