Upgrade your '99-'06 Twin Cam (except '06 Dyna Glide) engine with the Andrews Conversion Chain Driven Cam. This cam kit allows you to convert to the newer roller-style cam chains and replaces the spring tension cam chain adjusters with late-style hydraulic adjusters, offering increased reliability and longevity. Experience improved performance and modern technology in your classic Twin Cam. Description The Andrews Conversion Chain Driven Cam is designed to bring your '99-'06 Twin Cam (excluding '06 Dyna Glide) up to modern standards. By converting to roller-style cam chains and utilizing hydraulic adjusters, you'll benefit from reduced friction, improved valve train stability, and extended component life. The cam grinds are specifically designed for use with stock lifters, ensuring seamless integration and optimal performance. This upgrade provides performance similar to earlier bikes with the same cam grinds, giving your older Twin Cam a new lease on life. Manufactured in the USA to ensure quality and precision, this kit will provide years of trouble-free service. Features & highlights Upgrade to modern roller-style cam chains for improved performance. Replaces spring tension adjusters with hydraulic adjusters for extended life. Cam grinds designed for use with stock lifters. Provides performance similar to earlier bikes with same cam grinds. Made in the USA for superior quality and reliability. Improves valve train stability and reduces friction. Technical specifications Brand: Andrews Type: Chain Conversion Application: Exhaust, Intake Grind: 12 Series Intake Duration: 216° Intake Open: 2° Intake Close: 34° Intake Lift: 0.489" Intake Lift at TDC: 0.091" Intake Lobe Centerline: 106° Exhaust Duration: 222° Exhaust Open: 40° Exhaust Close: 2° Exhaust Lift: 0.489" Exhaust Lift at TDC: 0.095" Exhaust Lobe Centerline: 109° Important to know This kit requires the installation of a '07-'17 cam plate, oil pump, cam sprockets and chains, and both hydraulic chain adjusters. These parts are not included and must be purchased separately. A list of required components is supplied with each set of cams. '99-'01 model motors require Andrews rear cam sprocket. '02-'06 models must use the stock rear cam sprocket, OEM #25728-06. Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance.