Rocket Performance Garage Llc 554 Chain Drive Cam - Cams 1999-2006 — Harley-Davidson Road King, Road King Classic, Electra Glide (1999-2006)

Rocket Performance Garage 554 Chain Drive cam for Harley Twin Cam engines, engineered to deliver peak power from 1500 to 5800 rpm. Works with stock valve springs and compression ratios up to 10:1, and produces best results paired with a free-flow air cleaner and performance exhaust system.

Features

• Peak power 1500–5800 rpm
• Works with stock valve springs
• Fits 88″ to 107″ displacement engines
• Recommended with free-flow air cleaner and performance exhaust
• Mid-range passing power focus

Specifications

• Brand: Rocket Performance Garage LLC
• Manufacturer Part #: 4-4008
• Length: 5.95 in
• Width: 9 in
• Height: 2.3 in
• Weight: 2.67 lbs

Fitment

Fits Harley Twin Cam engines 1999–2006 with 88″ to 107″ displacement. NOT FOR USE IN CALIFORNIA.

Frequently Asked Questions

Do I need to replace my valve springs?

No — this cam uses stock Harley valve springs, so spring replacement is not required.

What compression ratio does this cam work with?

Stock compression or up to 10:1. It will work across that full range.

What intake and exhaust setup do you recommend?

Best power comes with a free-flow air cleaner and performance exhaust. Stock components will work but limit peak gains.

Is this legal in California?

No — this cam is NOT approved for use in California.

Will this fit my 2007+ Harley?

No — this part is for 1999–2006 Twin Cam models only.