Millennium Chrome Billet Rocker Box Covers
Contoured CNC machined aluminum covers replace factory top and middle rocker boxes and retain lower baseplate. Gaskets and hardware included. Available in smooth or ball milled style. For all Evolution® Big Twins 1984 to present.

Pro-One Chrome Rocker Box Covers
These chrome-plated billet aluminum rocker box covers are specially designed to accept roller rockers with high-lift cams. These covers DO NOT fit stock frames, must have aftermarket frame with additional clearance. Sold in sets.

Ness-Tech® Chrome Two-Piece Rocker Box Kits
Two-piece rocker boxes are machined from 6061-T6 billet aluminum, and give your engine a whole new look. Each kit includes two rocker box assemblies that have been hand-polished and chrome-plated, all necessary gaskets and hardware.

Ness-Tech 'Radius' Chrome Billet Rocker Boxes
Innovative two-piece design offers cleaner styling, minimizes leaks and eases maintenance. Compatible with either original equipment or high-performance rocker components, including cams with up to .650" lift. Kit includes 2 rocker box assemblies, all necessary gaskets and hardware.

S & S CHROME BILLET ROCKER COVERS
These two-piece billet aluminum rocker covers are designed with discriminating custom and performance enthusiasts in mind. Made to accommodate .710" lift when used with S & S Super Stock Street or OEM heads, and .810" lift with S & S special application heads when using S & S or OEM rocker arms. Allows for in-frame installation, taller motors such as S & S 96 and 103 cubic inch long blocks may require removal of engine. Fits most Evolution® and Evolution Sportster® engines regardless of year.

SPUTHE CUSTOM ROCKER COVERS
Sputhe Engineering's billet rocker boxes and covers for Evolution® Big Twins and Sportsters® are CNC machined from 6061 -T6 aluminum and show polished. An angular parting line and counter-sunk hold down screws makes for easier, in-frame, removal than stock. One Neoprene O-ring ensures a leak-proof seal. Sold in pairs

Chrome Billet Rocker Box Covers
Engineered to include breather passages including the umbrella valves for late model bikes with crankcase breathers through the heads. Set includes top cover and middle ring. For all Evolution® Big Twins 1984 to present.

Billet Rocker Box Cover Kits by Boyds
These Coddington-designed low-profile rocker boxes are machined from 2024 billet aluminum. The smaller design makes installation easy and provides more frame clearance. They are sealed with Viton® O-rings, and have clearance for valve lifts up to .800". They're compatible with most popular roller rocker arms, and feature seamless show-quality polishing. Sold in sets.

Custom 'Smooth' Rocker Boxes for Evolution® Big Twins
Precision aluminum castings enhance the look of the Evolution® Big Twin motor. Our custom covers have elegant rounded contours rather than the boxy look of stock rocker boxes. Engineered to exactly duplicate the function of stock pieces, including breather passages with umbrella valves for late model bikes with crankcase breathers in the heads. They accept stock or aftermarket rocker arms and rocker shafts. Each kit includes front and rear rocker boxes, hardware, and gaskets. Exclusively from Custom Chrome.

CHROME FINNED ROCKER COVER KIT
Our chrome finned rocker cover kit has been designed to fit Softail® models. Features die-cast, lower, middle and upper covers with gaskets, . seals and chrome hardware. The finned top cover improves oil cooling and give a clean custom look. Valve lift up to.560". Fits all Evolution® Big Twins 1984-1992. Sold one kit for one head.

JAMMER™ CHROME FINNED ROCKER COVERS FOR EVOLUTION
Constructed from aircraft quality aluminum, these chrome covers provide reduced oil temperatures due to the heat sink quality of the fins, Valve lift up to .560". Fits all Big Twin Evolution® models 1984-1992. Sold in pairs.

Smooth Profile Rocker Covers
A subtly different shape and completely enclosed recess for the upper cover screws allows for a continuous, sharp edge from front to rear resulting in an improved outer profile. Complete kit include stop, middle and bottom rocker box covers and all required hardware and gaskets. Sold each (two required per engine).

Custom 'Smooth' Rocker Boxes for Evolution® Sportster® Models
Precision aluminum castings enhance the look of the Evolution® Sportster® motor. Our custom covers have elegant rounded contours rather. than the boxy look of stock rocker boxes. Engineered to exactly duplicate the function of stock pieces, including breather passages with umbrella valves for late model bikes with crankcase breathers in the heads. They accept stock or aftermarket rocker arms and rocker shafts. Each kit includes front and rear rocker boxes, hardware, and gaskets. Exclusively from Custom Chrome®.

Chrome Rocker Covers for Evolution® Big Twin Models
Precision die-cast three-piece covers are machine polished, triple chrome-plated and individually inspected before shipment. For all Evolution® Big Twin models 1984 thru 1991.

ROCKER COVERS FOR SHOVELHEAD
Chrome die-cast rocker cover sets for Shovelhead engines 1966-1984. Replaces 17550-80 and 17552-80. Sold in pairs.

CHROME PAN COVERS AND D-RINGS
Fits Panhead models 1948-1965. Sold in pairs.

PAN COVER SCREW KITS
Chrome screw kits fit Panhead models 1948-1965. Sold in set of 24. Replaces OEM 3578W.

SPARE PARTS™ PANHEAD STYLE ROCKER COVER TRIM FOR EVOLUTION®
Give your new Evolution® the classic look of an old Panhead with these custom trim pieces. Each set attaches to the pushrod side using two rocker cover bolts and have heat resistant rubber pads to prevent them from rubbing against your existing covers. Chrome die-cast construction installs easily over the original equipment rocker boxes. Sold in pairs.

CHROME ROCKER BOX ALLEN SCREW KIT FOR EVOLUTION
This chrome Allen head screw kit fits Evolution® Big Twins 1984-up and Sportsters® 1986-up.

Finned Head Bolt and Spark Plug Covers
These sand-cast covers incorporate an innovative mounting kit that is securely attached to Original Equipment head. Its with set screws and holds the cover firmly in place. They look completely natural, yet give your motor a whole new look. For all Evolution® Big Twin and Sportster® motors 1986 to present. Sold in pairs.

Headlocks Finned Head Bolt and Spark Plug Covers
The fins blend with the cylinder head fins,and they lock the head bolts so they can't loosen. For Evolution® Big Twin models 1987 to present. Sold in pairs.