Andrews 57H Cams for 1999-2006 Harley Twin Cam

Product Description

Andrews TW57 Chain Drive Cam Set for Harley Twin Cam

Build strong, broad torque into your early Harley-Davidson Twin Cam with the Andrews TW57 Chain Drive Cam Set. Designed for performance-oriented 88ci and 95ci engines, the TW57 uses a broad-tip cam profile to deliver excellent midrange power while retaining street-friendly manners for everyday riding and touring.

With .560" intake and exhaust lift and a power range of approximately 2,200-5,600 rpm, the TW57 provides strong acceleration through the rpm range where street-driven Twin Cam engines spend most of their time. Andrews recommends the TW57 for 88ci and 95ci combinations with compression ratios up to approximately 9.8:1. 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 88ci and 95ci performance applications
• High-lift valve springs are required
• 1999 Twin Cam applications require a splined cam drive sprocket
• 1999 Cam Drive 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

• TW57 broad-tip performance camshaft grind
• Designed for strong street torque in 88ci and 95ci Twin Cam engines
• Recommended for compression ratios up to approximately 9.8:1
• Strong low-to-midrange and midrange performance
• Approximately 2,200-5,600 rpm power range
• .560" intake and exhaust valve lift
• Works with carbureted and fuel-injected Twin Cam engines
• High-lift valve springs required
• Sold as a matched intake and exhaust camshaft set
• Made in the USA
• Andrews Part Number: 288157

Specifications

• Manufacturer: Andrews Products
• Part Number: 288157
• Grind: TW57
• Drive Type: Chain Drive
• Intake Timing @ .053": 18° / 38°
• Exhaust Timing @ .053": 46° / 14°
• Intake Duration @ .053": 236°
• Exhaust Duration @ .053": 240°
• Intake Duration @ .020": 270°
• Exhaust Duration @ .020": 274°
• Intake Valve Lift: .560"
• Exhaust Valve Lift: .560"
• Intake Lift at TDC: .184"
• Exhaust Lift at TDC: .153"
• Valve Springs: High-Lift Springs Required
• Recommended Engine Size: 88ci-95ci
• Recommended Compression: Up to Approximately 9.8:1
• Power Range: Approximately 2,200-5,600 rpm