Andrews TW48 Cams for 1999-2006 Harley Twin Cam

Product Description

Andrews TW48 Chain Drive Cam Set for Harley Twin Cam

Build stronger low-end and midrange torque into your early Harley-Davidson Twin Cam with the Andrews TW48 Chain Drive Cam Set. Designed specifically for heavier baggers and street bikes, the TW48 uses a broad-tip cam profile to deliver responsive torque through the rpm range most commonly used during everyday riding, highway passing and touring.

With .548" intake and exhaust lift and an operating range of approximately 2,500-5,500 rpm, the TW48 is designed to provide strong street performance without shifting the powerband excessively high in the rpm range. High-lift valve springs are required for proper installation.

Fitment

• Fits 1999-2006 Harley-Davidson Twin Cam models with the early chain-drive cam system
• Fits select Harley-Davidson Touring, Softail and Dyna models
• Does not fit 2006 Harley-Davidson Dyna models, which use the later cam drive configuration
• Compatible with carbureted and fuel-injected Twin Cam engines
• Designed for use with stock Harley-Davidson hydraulic lifters
• High-lift valve springs are required
• 1999 Twin Cam applications require a splined cam drive sprocket
• 1999 Sprocket Requirement: Harley-Davidson OEM #25716-99 or compatible replacement
• Installer must verify valve spring coil bind, valve-to-valve clearance and valve-to-piston clearance during installation

Features

• TW48 performance camshaft grind
• Broad-tip cam profile designed for baggers and street motorcycles
• Strong low-end and midrange torque
• Approximately 2,500-5,500 rpm power range
• .548" intake and exhaust valve lift
• Works with carbureted and fuel-injected engines
• Designed for stock Harley-Davidson hydraulic lifters
• High-lift valve springs required
• Manufactured from high-quality alloy steel billets
• Heat treated for strength and durability
• Sold as a matched intake and exhaust camshaft set
• Made in the USA
• Andrews Part Number: 288148

Specifications

• Manufacturer: Andrews Products
• Part Number: 288148
• Grind: TW48
• Drive Type: Chain Drive
• Intake Timing @ .053": 13° / 29°
• Exhaust Timing @ .053": 43° / 15°
• Intake Duration @ .053": 222°
• Exhaust Duration @ .053": 238°
• Intake Duration @ .020": 257°
• Exhaust Duration @ .020": 273°
• Intake Valve Lift: .548"
• Exhaust Valve Lift: .548"
• Intake Lift at TDC: .153"
• Exhaust Lift at TDC: .163"
• Valve Springs: High-Lift Springs Required
• Power Range: Approximately 2,500-5,500 rpm
• 1999 Sprocket Requirement: Harley-Davidson OEM #25716-99