The Chevrolet Blazer Variable Timing Sprocket allows for precise control of when the camshaft meets the crankshaft. This allows each valve to open at the precise moment when power is needed. The Variable Timing Sprocket connects a timing chain and cam, as the name says. It uses stamped marks to put factory engines in sync. However, performance Blazer owners benefit from fine-tuning the Variable Timing Sprocket beyond the stamped marks. Due to drift in certain timing sets by two or three degrees, a mis-set Variable Timing Sprocket can rob as much as 50 horsepower. As a result, builders use a degree wheel and choose from multiple keyways, offset bushings, or slotted holes for proper cam placement. The Variable Timing Sprocket allows the intake valves to open earlier for improved low-rpm torque and retards their closing for increased high-rpm punch. Chevrolet has offered both fixed and adjustable types over the years. The adjustable type features extra key slots or movable inserts that allow simple adjustments without changing parts. Whenever chains, guides, or gears are replaced, the Variable Timing Sprocket should be replaced as a set to promote durability and keep every Chevrolet Blazer in perfect running condition.
Each OEM Chevrolet Blazer Variable Timing Sprocket we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.