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CP SC7324-4 piston and ring set rebuilds Nissan SR20DE/DET engines in 1989-1998 240SX models with 86mm stock bore precision. STD oversize fits factory dimensions for direct replacement. 9.0:1 compression ratio supports naturally aspirated or turbocharged setups with consistent power delivery.
Key Features
- Forged 2618-T61 Alloy: Withstands extreme heat and pressure in high-rpm SR20DE/DET applications for long-term engine life.
- 9.0:1 Compression Ratio: Balances efficiency for street driving and boost-ready performance in turbo SR20DET builds.
- CP Ring Pack Included: 1.2mm/1.5mm/2.8mm rings with skewed grooves reduce blow-by and friction for tighter seals.
- Optimized Skirt Design: Armor-glazed coating and contact reduction grooves minimize wear during break-in and operation.
- Lightweight Construction: 285g per piston reduces reciprocating mass for quicker revs and better throttle response.
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 | SC7324-4 |
| 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 SC7324-4
- 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
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- CP Piston & Ring Set for Audi/VW 2.0L TSI - Bore (83.0mm) - Size (+0.5mm) - CR (9.5) - Set of 4
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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