The Original Camshaft Belt Drive System
Smoother Than Gear Drives.
More Reliable Than Chain Drives.
Another Jesel Valvetrain Innovation
In 1982 Dan Jesel invented the Small Block Chevrolet Camshaft Belt Drive with the singular goal to make the most accurate and durable cam timing system available. Since then, our Camshaft Belt Drives have often been copied, but have never been duplicated.
In 1982 Dan Jesel invented the Small Block Chevrolet Camshaft Belt Drive with the singular goal to make the most accurate and durable cam timing system available. Since then, our Camshaft Belt Drives have often been copied, but have never been duplicated.
Advanced Materials and Design
Constructed from the highest quality materials, Jesel Camshaft Belt Drives offer superior enhancements over conventional timing chains and gear drives. Featuring the Gates patented High Torq Drive™ reinforced belt, our system ensures smooth operation by spinning dry between a robust steel crank pulley and a hard-coated aluminum upper pulley. This setup effectively dampens crankshaft harmonics and stabilizes the valvetrain under high-performance conditions.
Constructed from the highest quality materials, Jesel Camshaft Belt Drives offer superior enhancements over conventional timing chains and gear drives. Featuring the Gates patented High Torq Drive™ reinforced belt, our system ensures smooth operation by spinning dry between a robust steel crank pulley and a hard-coated aluminum upper pulley. This setup effectively dampens crankshaft harmonics and stabilizes the valvetrain under high-performance conditions.
Enhanced Performance Features
Jesel Camshaft Belt Drives are equipped with durable Teflon® coated high vacuum cam and crank seals, meticulously designed to maintain the intense vacuum levels typical in race engines securely within the crankcase. For those looking to fine-tune performance, the cam timing can be externally adjusted by ±10° in just minutes, and our optional dual thrust cam adapter assemblies can minimize cam thrust down to as little as .001”.
Jesel Camshaft Belt Drives are equipped with durable Teflon® coated high vacuum cam and crank seals, meticulously designed to maintain the intense vacuum levels typical in race engines securely within the crankcase. For those looking to fine-tune performance, the cam timing can be externally adjusted by ±10° in just minutes, and our optional dual thrust cam adapter assemblies can minimize cam thrust down to as little as .001”.
Simplified Maintenance and Adaptability
Jesel Camshaft Belt Drives have also been designed to quickly perform cam swaps through the front cover. Simply remove the upper cam pulley and un-bolt the cam seal plate to save countless hours during dyno sessions without ever needing to remove the oil pan.
Jesel Camshaft Belt Drives have also been designed to quickly perform cam swaps through the front cover. Simply remove the upper cam pulley and un-bolt the cam seal plate to save countless hours during dyno sessions without ever needing to remove the oil pan.
Wide Range of Applications
With over 65 styles and applications from OEM to aftermarket raised cam blocks, you can be certain that the same Jesel Camshaft Belt Drives used to win countless championships will also provide you with years of reliable race winning service.
With over 65 styles and applications from OEM to aftermarket raised cam blocks, you can be certain that the same Jesel Camshaft Belt Drives used to win countless championships will also provide you with years of reliable race winning service.
Features & Benefits
Patented High Torq Drive™ Reinforced Belt: Runs dry with minimal friction, superior to timing chains or gear drives, and effectively absorbs engine harmonics.
Premium Grade 8 Hardware: Features Allen and Torx™ head designs for robust assembly and reliability.
Infinitely Adjustable Upper Pulley: Offers precise cam timing adjustments up to ±10° for optimal performance tuning.
Heat-Treated Steel Crank Pulley: Utilizes High Torq Drive™ tooth configuration for enhanced durability and performance.
Hard-Coated Billet Aluminum Upper Pulley: Employs patented High Torq Drive™ tooth configuration for maximum efficiency.
Teflon® Coated High Vacuum Seals: Ensures excellent sealing for cam and crank shafts, maintaining vacuum integrity in high-performance engines.
Versatile Accessory Options: Accommodates distributor drives, fuel pumps, or oil pumps, enhancing the functionality of the front cam setup.