EMPI Piston & Cylinder Set | VW Type 1 Air-Cooled | 94mm × 82mm, 2276cc Stroker (98-1957-B)

EMPI Piston & Cylinder Set — 94mm × 82mm, 2276cc Stroker | VW Type 1 Air-Cooled (98-1957-B)

EMPI's 94mm × 82mm piston and cylinder set (98-1957-B) is the heart of the most popular air-cooled stroker there is. Run on an 82mm stroker crank, this matched four-cylinder kit builds a 2276cc Type 1 — pistons, cylinders, rings, pins and clips in one matched set.

Vehicle Fitment

• VW Type 1 Air-Cooled: Beetle, Super Beetle, Bus (Type 2), Karmann Ghia — cases machined for 94mm × 82mm

This is a build component, not a bolt-in. A 94mm bore requires the case cylinder spigots and the heads to be machined to accept 94mm barrels, and the 82mm stroke requires case clearancing. Not confirmed: stock un-machined cases, Type 4 engines.

Key Features & Benefits

• 2276cc stroker: 94mm bore × 82mm stroke — the go-to air-cooled stroker displacement
• Matched set of 4: pistons and cylinders sized together
• Complete top-end: includes rings, wrist pins and clips
• Built to pair: designed for the EMPI 82mm counterweighted crank (00-8182-0)

Technical Specifications

• Bore: 94mm
• Stroke: 82mm
• Displacement: 2276cc
• Quantity: set of 4 (pistons + cylinders)
• Includes: rings, wrist pins, clips
• Pairs with: EMPI 82mm crank 00-8182-0
• Brand: EMPI
• Part Number: 98-1957-B
• UPC: 707924433395
• Country of Origin: China
• Shipping Weight: 24.6 lb
• Boxed Dimensions: 12 x 12 x 7 in

Frequently Asked Questions

• What displacement does this make? 2276cc, on an 82mm stroke crank.
• Does it fit a stock case? No — the case spigots and heads must be machined for the 94mm bore and the case clearanced for the 82mm stroke.
• What crank do I run with it? The EMPI 82mm counterweighted crank (00-8182-0).
• Is everything included to do the top end? Pistons, cylinders, rings, pins and clips are included; bearings and gaskets are separate.
• What's the part number? EMPI 98-1957-B (UPC 707924433395).

Explore Related Categories

Engine Parts · All VW Air-Cooled · EMPI

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.