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

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.

Application

• 87 mm bore — common big-bore step up from stock 85.5 mm (≈1641cc on stock 69 mm stroke)
• Pair with matching 87 mm pistons during a rebuild

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.

Specifications

• EMPI Part #: 98-1237-B
• Set covers 4 cylinders (one complete engine)

About 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.