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

This is the heart of the most popular air-cooled stroker there is. EMPI's 94mm x 82mm piston and cylinder set (98-1957-B) is the matched four-cylinder kit that builds a 2276cc Type 1 when you run it on an 82mm stroker crank. Big bore, big stroke, one matched set — pistons, cylinders, rings, pins and clips.

Features

• 94mm bore x 82mm stroke — builds 2276cc, the go-to air-cooled stroker displacement
• Matched set of 4 — pistons and cylinders sized together
• Includes rings, wrist pins and clips — a complete top-end set
• Designed to pair with the EMPI 82mm counterweighted crank (00-8182-0)
• Requires case and head machining for the 94mm bore (see Fitment)

Fitment

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. Built for Type 1 cases going to 2276cc with a matching 82mm crank. CONFIRMED: Type 1 cases machined for 94mm x 82mm. NOT CONFIRMED: stock un-machined cases, Type 4 engines.

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
• Part Number: 98-1957-B | UPC: 707924433395
• Country of Origin: China
• Shipping weight: 24.6 lb | Boxed: 12 x 12 x 7 in

Questions & Answers

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).

Are you an authorized dealer? Yes — Washburn's Metal is an authorized EMPI dealer.

Prop 65 Warning

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.