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This CP Piston and Ring Set delivers forged 2618-T6 components for turbocharged Nissan SR20DE engines in 1989-1998 Nissan 240SX models including Base LE SE and XE trims. It withstands high boost pressures up to 25 psi while increasing displacement for greater power output. The 87mm bore +1.0mm oversize and 9:1 compression ratio ensure reliable performance in demanding turbo applications.
Key Features
- Forged 2618-T6 Alloy: Built to endure high cylinder pressures and temperatures in turbocharged applications
- 87mm Bore +1.0mm Oversize: Increases displacement for more power output when engine block is machined accordingly
- 9:1 Compression Ratio: Allows safe boost levels up to 25 psi with proper tuning and fuel
- Includes Rings Pins and Locks: Premium moly top ring molecularly bonded iron seconds and three-piece oil control rings with tool steel wrist pins
- Coatings and Design: Skirt ArmorGlide coating reduces friction dome ceramic top coating sheds heat plus accumulator groove prevents ring flutter
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 1989-1990 | Nissan | 240SX | XE |
| 1989-1998 | Nissan | 240SX | SE |
| 1991-1992 | Nissan | 240SX | LE |
| 1991-1993 | Nissan | 240SX | Base |
| 1995-1998 | Nissan | 240SX | Base |
| 1997-1998 | Nissan | 240SX | LE |
Specifications
| Manufacturer | CP Pistons |
|---|---|
| Manufacturer Part Number | SC7326-4 |
| Product Type | Piston Sets - Forged - 4cyl |
| Fitment Type | Vehicle specific, exact engine build verification required |
What's Included
- One new CP Pistons forged piston set in the exact configuration and quantity identified by part number SC7326-4
- Pins, locks, rings, and installation components only when expressly listed for this exact part number
About CP Pistons
CP Pistons develops forged pistons, piston rings, wrist pins, and related engine components for performance applications. Correct selection and assembly depend on the exact engine, dimensions, cylinder head, connecting rod, intended use, machine work, clearances, and manufacturer part number.
Related CP Pistons Products
- CP Piston & Ring Set for Nissan SR20DE w/ Turbo - Bore (87mm) - Size (+1.0mm) - CR (8.5)
- CP Piston & Ring Set for Nissan KA24 w/ Turbo - Bore (89.5mm) - Size (+0.5mm) - Compression Ratio (9
- CP Piston & Ring Set for Miata BPZ3 - Bore (84mm) - Size (+1.0mm) - Compression Ratio (9.0)
Browse the CP Pistons collection for related forged pistons, rings, pins, locks, and engine-building components.
Frequently Asked Questions
How do I confirm this CP piston set matches my engine build?
Confirm the exact engine family, bore size, stroke, connecting rod length and small-end diameter, cylinder head and valve layout, compression height, dome or dish volume, ring pack, wrist pin, and manufacturer part number.
Can the advertised compression ratio be used for every build?
No. Final compression depends on bore, stroke, deck height, gasket thickness and bore, combustion chamber volume, piston-to-deck position, and the exact piston crown volume.
What measurements are required before final piston assembly?
A qualified engine builder should verify bore finish and clearance, ring end gap, pin fit, deck clearance, piston-to-valve clearance, rod and counterweight clearance, and all CP installation specifications.
Installation Instructions
Professional engine machining and assembly are required. Follow the current CP Pistons and engine-builder instructions for this exact part number. Measure every bore and component, verify all clearances and ring gaps, clean all parts and oil passages, use the specified lubricants and fastener procedures, confirm rotating-assembly and piston-to-valve clearance, and complete the required break-in and calibration.
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