JE Pistons Piston Kit 4.030in Bore 1.165in CH Minus5.00CC

Piston kit engineered to deliver durable, forged 4032 aluminum construction for improved reliability under high-stress racing use.

Built by JE Pistons, the Sportsman Racing Products (SRP) piston line combines JE's motorsports pedigree with an emphasis on value and consistency. SRP pistons are forged from 4032 alloy and are designed and manufactured to reduce machining while retaining the key durability characteristics expected from a JE Pistons product.

This piston kit is specified for engines requiring a 4.030in bore and a 1.165in compression height, with a -5.00CC crown volume variant for precise combustion chamber control. These dimensions make the kit suitable for rebuilds and performance builds where repeatable geometry and reliable material properties are required.

Technical specifications & functional benefits

• 4.030 in bore — exact bore sizing ensures correct fitment to cylinders machined to this standard diameter, supporting predictable piston-to-wall clearances.
• 1.165 in compression height (CH) — defined compression height establishes piston deck position relative to the crank and helps maintain intended quench and compression characteristics.
• -5.00 CC crown volume — negative crown volume adjusts combustion chamber displacement for targeted compression ratio tuning.
• Forged 4032 aluminum alloy — alloy selection provides a balance of strength and thermal stability typical of performance pistons while allowing controlled expansion characteristics during operation.
• SRP (Sportsman Racing Products) series — designed to bridge high-quality forged piston performance with affordability and consistent manufacturing tolerances from JE Pistons.

Use this piston kit where dependable forged construction, defined dimensional control, and JE Pistons' engineering heritage are required. The specification-driven design facilitates installation and helps preserve intended engine geometry without speculative modification.

Vendor: JE Pistons