Hastings Piston Ring Set | VW Type 1 Big-Bore 1641cc | 87mm 2×2×5 Chrome (98-1237-B)

Hastings Piston Ring Set — 87mm Bore, 2×2×5 Chrome | VW Type 1 Big-Bore 1641cc

Hastings piston ring set for 87 mm bore VW air-cooled engines. Chrome compression rings — Hastings' upgrade material for longer life, better wear resistance, and reduced break-in time compared to cast iron. Complete set for a 4-cylinder engine.

Vehicle Fitment

• VW Type 1 (Beetle): 87 mm big-bore (≈1641cc on stock 69 mm stroke)
• VW Karmann Ghia: 87 mm big-bore application
• VW Type 2 (Bus): 87 mm big-bore application

A common big-bore step up from the stock 85.5 mm bore. Pair with matching 87 mm pistons during a rebuild.

Why Choose Hastings?

Hastings has been making piston rings in the United States since 1915. Their cast iron and chrome ring sets are a long-standing standard for air-cooled VW engine rebuilds — known for consistent quality and tight gap tolerances out of the box.

Key Features & Benefits

• Chrome compression rings: longer life, better wear resistance, and reduced break-in time compared to cast iron.
• Big-bore fitment: 87 mm step up from the stock 85.5 mm bore.
• Complete engine set: covers all four cylinders with tight gap tolerances out of the box.

Technical Specifications

• EMPI Part #: 98-1237-B
• Bore: 87 mm
• Material: Chrome compression rings
• Sold as: Set covers 4 cylinders (one complete engine)

Ring Stack — read before ordering

Hastings rings are specified by their groove widths in millimeters, in the order top compression / second compression / oil control:

• Top compression: 2 mm
• Second compression: 2 mm
• Oil control: 5 mm
• Material: Chrome compression rings

Confirm the ring groove widths cut into your pistons match this stack before ordering. Mismatched ring stacks will not seat properly.

Frequently Asked Questions

• What engine size does this fit? The 87 mm bore is a common big-bore step up from the stock 85.5 mm bore (≈1641cc on stock 69 mm stroke).
• Why chrome instead of cast iron? Chrome rings offer longer life, better wear resistance, and reduced break-in time compared to cast iron.
• How do I confirm it fits my pistons? Match the groove widths cut into your pistons to the 2×2×5 ring stack (2 mm / 2 mm / 5 mm) before ordering.

Explore Related Categories

Explore more in Engine Parts, Hastings, and All VW Air-Cooled.