Wiseco KE165M8675AP Opel Vauxhall C20LET 4-Valve Piston Kit 86.75mm 8:1 CR

The Wiseco KE165M8675AP is a forged piston kit engineered specifically for the Opel/Vauxhall C20LET 4-valve per cylinder engine. Featuring an 86.75mm bore diameter, a -13cc dish dome design, and an 8:1 compression ratio, this kit is built for performance applications that demand strength, durability, and precise combustion characteristics.

Wiseco pistons are manufactured from high-strength 2618 aluminum alloy forgings, offering superior resistance to heat and mechanical stress compared to cast pistons. Each piston is CNC-machined to tight tolerances, ensuring proper ring seal and consistent power delivery across all cylinders.

Key Features:

• Bore Diameter: 86.75mm for direct fitment or slight overbore applications
• Compression Ratio: 8:1 — ideal for forced induction (turbocharged) builds
• Dish Volume: -13cc dish top to support lower compression in boosted environments
• 4-Valve Design: Valve relief pockets matched to the C20LET 4-valve cylinder head
• Forged from high-strength aluminum alloy for exceptional durability under high heat and pressure
• CNC-machined to OEM-level tolerances for optimal fit and ring seal
• Part of Wiseco's Piston Kit (KE Series) — includes pistons, pins, clips, and rings

The low 8:1 compression ratio makes this piston kit an excellent choice for high-boost turbocharged builds of the Opel/Vauxhall C20LET engine, allowing greater boost pressure without risk of detonation. Wiseco's KE-series kits are a trusted choice among performance engine builders worldwide.