R&R Twin Cam 95” & 103" Stage IV (Street Ace)

The Stage IV (Street Ace) is our most popular performance package for one reason, It Works! This street proven package offers rock solid horsepower and torque and phenomenal acceleration. So, unlock the full potential of your Twin Cam® engine and let the fun begin!

Package Includes:

R&R Stage IV (Street Ace) Headwork. (Exchange)
CP® Forged Pistons
R&R 615 Gear Drive Cams
S&S® Gear Drive Kit
Adjustable Pushrods
Pushrod Tubes and O-rings
Head Gaskets & Base O-rings
Cam Cover Gasket and Support Plate O-rings

Rock Box Gaskets for Stock Rocker Boxes

Note: Ship your stock cylinders with your stock heads and we will properly size them to the new pistons in the kit.

Note: 06 Dyna® and 07 & later T.C. also include an R&R billet support plate.