SKU: SC7324-4
CP Piston &. Ring Set for Nissan SR20DE/DET – Bore (86mm) – Size (STD) – CR (9.0) 1989-1998 Nissan 240SX
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.
Product Notes
- Matches SR20DE/DET specs 86mm bore 86mm stroke 121.5mm rod length 30mm compression height.
- Head volume tuned to 9.0:1 with flat-top domes verify with combustion chamber size.
- Box dimensions 10x8x4 inches protects components during transit.
Installation Notes
- Professional installation recommended.
- Hone cylinders to 86.00-86.02mm with plate hone for ring seating.
- Wrist pins 20mm x 56mm press-fit compatible with OEM or aftermarket rods.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1989-1998 | Nissan | 240SX | SE |
| 1989-1990 | Nissan | 240SX | XE |
| 1991-1993 | Nissan | 240SX | Base |
| 1995-1998 | Nissan | 240SX | Base |
| 1991-1992 | Nissan | 240SX | LE |
| 1997-1998 | Nissan | 240SX | LE |
Why Choose CP Pistons?
- Engineered for motorsports with proven results in drag and circuit racing.
- CNC-machined tolerances hold under 0.0005 inches for zero slop.
- Backed by CP-Carrillo USA manufacturing for consistent quality.
Frequently Asked Questions
- Q: Will SC7324-4 fit SR20DET turbo engines in 240SX swaps?
A: Yes fits all SR20DE/DET variants at stock 86mm bore direct replacement for turbo or NA with proper tuning. - Q: What material and ring gaps are used?
A: Forged 2618-T61 aluminum rings gap top 0.45mm second 0.50mm oil 0.25mm adjust per CP instructions. - Q: What warranty covers this piston set?
A: Limited lifetime warranty against manufacturing defects when installed by certified shop.
Shipping &. Handling
- Method: UPS or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Foam-lined box 10x8x4 inches
- Weight: 3.7 lbs





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