Hastings piston ring set for 94 mm bore VW Type 1 big-bore engines with the standard 2 mm top compression ring. Cast iron compression rings — Hastings' standard street-quality material. The most common 94 mm ring stack for stock-grind Type 1 piston/cylinder kits. Complete set for a 4-cylinder engine.

Application

• 94 mm bore Type 1 big-bore (≈1914cc on stock 69 mm stroke, ≈2110cc on 78 mm stroker)
• Standard 2 mm top compression groove (most common 94 mm piston spec)
• Pair with matching 94 mm Type 1 pistons cut for this stack

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: 4 mm
• Material: Cast iron compression rings

Confirm the ring groove widths cut into your pistons match this stack before ordering. The three 94 mm sets (1.5 / 1.75 / 2 mm top) are NOT interchangeable.

Specifications

• EMPI Part #: 98-1232-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.