EMPI Piston & Cylinder Set | VW Type 1 Air-Cooled | 77mm × 64mm, 40HP 1200cc (98-1946-B)

EMPI Piston & Cylinder Set — 77mm × 64mm, 40HP 1200cc | VW Type 1 Air-Cooled (98-1946-B)

EMPI's 77mm × 64mm piston and cylinder set (98-1946-B) is the 40HP 1200cc set. It's a complete matched set of four for a VW Type 1 engine — pistons, cylinders, rings, wrist pins and clips, sized together.

Vehicle Fitment

• VW Type 1 Air-Cooled: Beetle, Karmann Ghia, Bus (Type 2)

Slip-in on a standard case machined for this bore — no special case work required, and it runs the stock crank. Not confirmed: Type 4 / 914 engines (different bore spacing and case).

Key Features & Benefits

• 40HP 1200cc: 77mm bore × 64mm stroke
• Matched set of 4: pistons and cylinders sized together for consistent fit
• Complete top-end: includes rings, wrist pins, and clips
• Stock-crank compatible: runs the standard 64mm crank

Technical Specifications

• Bore: 77mm
• Stroke: 64mm
• Displacement: 1200cc (40HP)
• Quantity: set of 4 (pistons + cylinders)
• Includes: rings, wrist pins, clips
• Brand: EMPI
• Part Number: 98-1946-B
• UPC: 707924433289

Frequently Asked Questions

• Does this fit my air-cooled VW Type 1? Yes — once the case is machined for this bore where required.
• Do I need a stroker crank? No — it runs the stock crank.
• What's included? A complete set for one engine: 4 cylinders, 4 pistons, rings, wrist pins, and clips.
• What's the part number? EMPI 98-1946-B (UPC 707924433289).

Explore Related Categories

Engine Parts · All VW Air-Cooled · EMPI

WARNING: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information, go to www.P65Warnings.ca.gov. All parts legal for use on pre-pollution-controlled vehicles only.