X-Duty HiTech Belt Drive SBC/Olds Rocket

The COMP Cams 6507 Xtreme Duty Hi-Tech Belt Drive System is engineered for extreme applications, providing superior durability for high RPM and high compression engines. It features an infinitely adjustable Vernier sprocket for precise timing accuracy and a unique belt idler system to minimize belt flap across the entire RPM range. This design effectively absorbs crankshaft harmonics, preventing valve train instability and ensuring consistent performance. The system also incorporates a unique camshaft thrust adjustment system that eliminates the need for shims and includes double-lip seals for extended life and maximum crankcase vacuum. It is an ideal choice for serious street performance and dedicated race applications.