Hastings Ring Set — 94mm, 1.5×2×4 Cast Iron, Thin-Top | VW Type 1 Big-Bore 1914/2110cc (98-1231-B)

Hastings Ring Set — 94mm, 1.5×2×4 Cast Iron, Thin-Top | VW Type 1 Big-Bore 1914/2110cc (98-1231-B)Hastings piston ring set for 94 mm bore VW Type 1 big bore engines with a thinner 1. 5 mm top compression ring. Cast iron compression rings Hastings' standard street quality material. The thinner top ring reduces friction for higher RPM performance applications. 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) Pistons machined for a 1. 5 mm top compression groove

Hastings piston ring set for 94 mm bore VW Type 1 big-bore engines with a thinner 1.5 mm top compression ring. Cast iron compression rings — Hastings' standard street-quality material. The thinner top ring reduces friction for higher-RPM performance applications. 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)
• Pistons machined for a 1.5 mm top compression groove (performance applications)
• 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: 1.5 mm (reduced thickness — performance pistons only)
• 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. A 1.5 mm top ring will NOT work in a 2 mm groove and vice versa.

Specifications

• EMPI Part #: 98-1231-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.