CMI Precision Billet Roller Rocker Arm Kit | Air-Cooled VW Type 1 | 1.4:1 Ratio, DLC Shafts (#E14)

CMI Precision Billet Roller Rocker Arm Kit | Air-Cooled VW Type 1 | 1.4:1 Ratio (#E14)

When you're running big lift and high RPM, stock stamped rockers become a liability. CMI's Precision Billet Roller Rocker Arm Kit (1.4:1 ratio) is a track-tested, fully-machined valvetrain assembly with forced-feed oiling and DLC-coated shafts, built to survive extreme lift while keeping the valvetrain cool. The 1.4:1 ratio is identified by blue anodized end caps.

Vehicle Fitment

• VW Type 1 Air-Cooled Engines: Beetle, Bus, Karmann Ghia, Type 3, and Thing — performance and racing builds running high-lift cams. Verify rocker geometry, pushrod length, and valvetrain clearance for your specific cam and head combination. Not confirmed for Type 4 engines.

Why Choose CMI?

CMI Precision builds this as a track-tested, fully-machined assembly — force-fed oiling and DLC-coated shafts deliver constant cooling and low friction where stamped rockers fail.

Key Features & Benefits

• 1.4:1 Rocker Ratio: Identified by blue anodized end caps.
• Forced-Feed Oiling: Oil routed through the pushrods to the shafts and sprayed onto the roller tips.
• Billet Rocker Arms: Machined from 7050-T651 aluminum, hard-anodized with a Teflon seal.
• DLC-Coated Shafts: 9310 steel shafts with a Diamond-Like Carbon low-friction coating.
• Precision Adjusters: 3/8" H13 tool steel adjusters with ball cups and titanium 12-point lock nuts.
• Grade 12.9 Mounting Studs: With 7075-T651 aluminum blocks and spacers.
• Cooler Running: Constant oil bath cools the valve springs and reduces friction at high RPM.

Technical Specifications

• Ratio: 1.4:1
• Rocker Body: 7050-T651 aluminum, hard anodized
• Shaft: DLC-coated 9310 steel
• Adjusters: H13 tool steel with titanium lock nuts
• Blocks & Spacers: Black anodized 7075-T651 aluminum
• Mounting Studs: Grade 12.9
• Part Number: #E14

Frequently Asked Questions

• What ratio is this kit? 1.4:1, identified by blue anodized end caps. The 1.5:1 version has black caps.
• How does the oiling work? Oil is force-fed through the pushrods to the DLC shafts and sprayed onto the roller tips for constant cooling and low friction.
• What are the rockers made of? 7050-T651 aluminum, hard-anodized, on DLC-coated 9310 steel shafts.
• Will these fit my build? They fit Type 1 engines; verify geometry, pushrod length, and clearance for your cam and heads.
• Is this a CMI product? Yes — CMI Precision, sold by Washburn's Metal.

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WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. For more information, go to www.P65Warnings.ca.gov.