Bolt Up Rocker Shaft Set (Fixed Centre) - Type 1 Engines

Unlock greater RPM potential and reduce engine wear with this bolt-up rocker shaft kit, designed for VW Type 1 aircooled engines. This performance upgrade helps eliminate excessive rocker shaft side play — a common issue in stock setups that can lead to rocker arm galling, clip and washer failure, and reduced valvetrain reliability.

This kit includes precision-ground, high-strength steel shafts, solid steel centre spacers, and shims to ensure a stable and rigid rocker assembly. The bolt-up design replaces stock clips and washers with heavy-duty hardware, keeping your rocker arms properly aligned at all times, even under high-stress or high-RPM conditions.

Perfect for performance builds and enthusiast restorations alike, this kit is a must-have when upgrading to high-lift cams, dual springs, or running sustained high engine speeds. It ensures consistent rocker arm geometry, better valve control, and increased longevity of valvetrain components.

We also offer an alternative version under part number AC109212309A, which features a floating aluminum center spacer for fine-tuning rocker arm geometry and positioning — ideal for advanced setups requiring adjustable spacing.

Kit Includes:

• 2 x Precision-ground high-strength rocker shafts

• Solid steel center spacers

• Shims for spacing adjustment

• Mounting hardware

Specifications:

• Fitment: VW Type 1 engines

• Quality: Good quality reproduction

• Quantity: 1 x complete kit for both rocker assemblies

Applications:

• VW Beetle: 1960–1979

• VW Splitscreen Bus: 1960–1967

• VW Baywindow Bus: 1968–1979

• VW Karmann Ghia: 1960–1974

• VW Type 3: 1961–1973

• VW Trekker (Type 181): 1968–1983

• VW Buggy & Baja: 1960–1979