Andrews Twin Cam 21N Cam Kit - 216821

Upgrade your '99-'06 Twin Cam (excluding '06 Dyna Glide) with the Andrews Conversion Chain Driven Cam. This kit allows you to convert to the newer, more durable roller-style cam chains and replaces the original spring tension cam chain adjusters with modern hydraulic adjusters, significantly extending their service life.

Description

The Andrews Conversion Chain Driven Cam ensures enhanced performance and reliability for your Twin Cam engine. Designed for use with stock lifters, these cam grinds deliver performance comparable to earlier models with similar cam profiles. This conversion kit facilitates the installation of an '07-'17 cam plate, oil pump, cam sprockets and chains, along with hydraulic chain adjusters, optimizing your engine's efficiency and longevity. The "N" series cams uniquely feature a 0.875" bearing journal, accommodating the new-style cam support plate while fitting earlier motor specifications. Note that installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance during installation.

Features & highlights

• Upgrades '99-'06 Twin Cam engines (except '06 Dyna Glide) to modern roller-style cam chains.
• Replaces spring tension adjusters with hydraulic adjusters for increased durability.
• Cam grinds are optimized for use with stock lifters, ensuring reliable performance.
• Facilitates the installation of '07-'17 components, including cam plate, oil pump, and sprockets.
• "N" series cams feature a 0.875" bearing journal, compatible with new-style cam support plates.
• Designed for enhanced engine efficiency and longevity.
• Made in the USA.

Technical specifications

• Brand: Andrews
• Type: Chain Conversion
• Application: Exhaust, Intake
• Intake Open: 10°
• Intake Close: 30°
• Intake Duration: 255°
• Intake Lift: 0.498"
• Intake Lift at TDC: 0.134"
• Intake Lobe Centerline: 100°
• Exhaust Open: 40°
• Exhaust Close: 8°
• Exhaust Duration: 228°
• Exhaust Lift: 0.498"
• Exhaust Lift at TDC: 0.121"
• Exhaust Lobe Centerline: 106°
• Grind: 21 Series

Important to know

'99-'06 Twin Cam motors (except '06 Dyna Glide) cannot directly use '07-'17 cams due to bearing journal differences. This kit requires the separate purchase of an '07-'17 cam plate, oil pump, cam sprockets and chains, and both hydraulic chain adjusters. 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.