85.5mm + 87mm Barrel Spacer Kit (0.010" Thick) - Type 1 Engines

Cylinder base shim set for aircooled VW Type 1 engines using standard 85.5mm cylinders and pistons.

These precision shims fit between the cylinder barrel and crankcase to alter deck height and adjust the engine compression ratio during assembly. By spacing the cylinder away from the crankcase slightly, the combustion chamber volume increases, helping reduce compression ratio and fine tune engine setup.

Cylinder shims are commonly used when building or rebuilding performance and standard engines, particularly when changing crankshaft stroke, machining cylinder heads, flycutting combustion chambers or setting precise deck height measurements.

This set is designed for standard 85.5mm barrels used on 1600cc Type 1 engines and can be used on Beetle, Bus, Karmann Ghia, Type 3 and other Type 1 upright engine applications.

Manufactured to 0.010″ thickness (0.254mm), making them ideal for fine adjustment during engine blueprinting or compression ratio setup.

Sold as a set of 4, enough for one complete engine.

We recommend checking deck height carefully during assembly and calculating final compression ratio before installation. Cylinder sealing surfaces should be clean and flat before fitting.

Specifications:

• Fits 85.5mm cylinders/barrels
• Thickness: 0.010″ (0.254mm)
• Fits standard 1600cc Type 1 engines
• Quantity: Set of 4
• Fits between cylinder and crankcase

Applications:

Aircooled VW

• VW Beetle, 1960–1979, 1600cc Type 1 engines
• VW Splitscreen Bus, 1960–1967, upright Type 1 engine applications
• VW Baywindow Bus, 1968–1979, Type 1 engine models
• VW Karmann Ghia, 1960–1974
• VW Type 3, 1961–1973, upright Type 1 based engine applications
• VW Type 181 Trekker, 1968–1983
• VW Buggy and Baja models using 85.5mm Type 1 engines