Carrillo XP5003-6 X-Series Forged 2618 Piston - Porsche 911 3.0 SC 98mm

Designed as a direct, high-performance upgrade over factory pistons, this set delivers race-proven strength and precision for both street performance and track builds.

Key Specifications:

• Bore: 98 mm (+3 mm over standard)
• Stroke: 70.4 mm
• Rod Center-to-Center: 127.75 mm
• Compression Height: 1.335 in
• Compression Ratio: 10.5:1
• Dome Height: 0.440 in
• Head CC: 90 cc
• VR Depths: .180 / .135
• Ring Pack: 1.0 x 1.2 x 2.8 mm
• Pin Diameter: 22 mm
• Pin Length: 2.250 in
• Pin Wall: 0.180 in

Key Features:

• Forged from 2618 aluminum alloy for superior strength under high heat and pressure
• Narrow pin boss forging with heavy-duty wrist pins for added durability
• Full 3-D under-crown milling for the lightest possible piston — a feature normally reserved for fully custom pistons
• Anti-detonation grooves and accumulator grooves for enhanced ring seal and detonation resistance
• Double pin oil with broach and CP wire-lox system with installation tool included
• X-Series forging platform covers bore sizes of 95 mm, 98 mm, 100 mm, and 102 mm for broad Porsche aircooled compatibility

Manufactured by CP-Carrillo at their facility in Irvine, California, these pistons represent the same quality trusted by professional Porsche engine builders worldwide. The XP5003-6 is a special order item — please allow additional lead time for delivery.