Forged Pistons for Nissan SR20 86.5 11:1 (CP Pistons SC7320)

Forged Pistons for Nissan SR20 86 9:1 (CP Pistons SC7324)

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Forged Pistons for Nissan SR20 87mm 11:1 (CP Pistons SC7321)

Name: Forged Pistons for Nissan SR20 87mm 11:1 (CP Pistons SC7321)
Brand: CP Carrillo
SKU: SC7321
Price: 1431 AUD
Availability: InStock

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AUD$1,300.91

SKU

SC7321

Piston Pin Upgrades

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DELIVERY & FREIGHT

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Faq

Make	Nissan
Model	SR20DE/DET
Part Number	SC7321
Cylinders	4
Bore (in)	3.425
Bore (mm)	87
Size	+1.0mm
Stroke	86
Conrod	136.25
Comp Height (in)	1.26
Comp Height (mm)	32
Dom/Dish CC	0
Compression Ratio	11
Weight (Grams)	331
Pin (mm)	22
Rings	CPN-3425
Ring Thickness	1.0 x 1.2 x 2.8mm
Pin included (Standard)	866-2250-15CP1C
Upgraded Pin	866-2250-20CP3C
Ultra Duty Pin	866-2250-25CP3C
Locks	866x063 SWL

CP pistons are compatible with oversized valves and high lift camshafts. CP Pistons represent the highest quality and is engineered for maximum power. Standard features include: Deep valve reliefs accommodate high lift camshafts; Larger valve reliefs for +1mm valve sizes; Custom skirt cam and barrel design; Accumulator grooves; High strength aluminum forgings; High performance rings; Fully CNC machined and balanced to +/- 1 gram; Wrist pins included at no additional cost; Double pin oilers force fed from oil ring groove; Pin lock grooves for easy lock removal; Pin fitting included.

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Product Name	Forged Pistons for Nissan SR20 87mm 11:1 (CP Pistons SC7321)
Brands	CP Carrillo
Engine	SR20
Make	Nissan

Delivery & Freight

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What information do I need to match these pistons to my engine?

You need the engine code, bore size, stroke, rod length, pin diameter and target compression ratio. These determine the correct piston compression height and crown design.

How should ring gaps be set for these pistons?

Ring gaps must be set by your engine builder based on fuel type, boost level and the intended rpm range. Forced-induction engines usually require larger gaps.

Are forged pistons suitable for street engines?

Yes. Forged pistons handle detonation and high cylinder pressure better than cast units. Your builder should set the piston-to-bore clearance to suit your application.

What is the recommended bore clearance for the SC7321 pistons?

For the SC7321 pistons, a typical bore clearance of 0.0015" to 0.0025" is recommended. However, this can vary based on your specific engine build and intended use, so always consult with your engine builder for precise measurements.

What compression ratio do the SC7321 pistons provide?

The SC7321 pistons have a compression ratio of 11:1 when used in an SR20 engine. This ratio is suitable for performance applications, but ensure your fuel quality and tuning are appropriate for this level of compression.

What type of wrist pins are included with the SC7321 pistons?

The SC7321 pistons come with standard wrist pins (part number 866-2250-15CP1C) included at no additional cost. Upgraded and ultra-duty pins are also available for those looking for enhanced strength.

Do the SC7321 pistons accommodate high lift camshafts?

Yes, the SC7321 pistons feature deep valve reliefs designed to accommodate high lift camshafts, making them suitable for performance builds that require larger valve sizes and aggressive cam profiles.

What is the weight of the SC7321 pistons and how does it affect performance?

The SC7321 pistons weigh 331 grams each. This lightweight design helps reduce reciprocating mass, which can improve engine response and overall performance, especially in high RPM applications.

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