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Carrillo SC7431 Forged Piston Set for Subaru EJ255 WRX 100mm 8.4:1 Compression

Manufacturer

Picture for manufacturer Carrillo

Part Number

SC7431-1
6 reviews
Sale Price

$245.74

Estimated ship date Tuesday, November 24

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Product Details

The CP-Carrillo SC7431 is a high-performance forged piston set engineered specifically for Subaru EJ255 WRX engines. This piston features a 100mm (3.937") bore with 8.4:1 compression ratio, designed to work with standard stroke cranks and standard-length connecting rods in 2.5L applications.

CP-Carrillo pistons are manufactured from high-strength 2618-T61 aluminum alloy forgings, offering excellent durability under high heat and high cylinder pressures, making them ideal for turbocharged and high-performance builds. Each piston is designed using advanced 3D modeling software and manufactured with precision 5-axis CNC machining for optimal strength-to-weight ratio.

Key Features:

  • Deep valve reliefs accommodate high lift camshafts and oversized valves
  • Custom skirt cam and barrel design for reduced friction
  • Accumulator grooves for enhanced oiling
  • Double pin oilers force fed from oil ring groove
  • Fully CNC machined and balanced to +/- 1 gram
  • Pin lock grooves for easy lock removal
  • Compression height: 1.208 inches (30.7mm)
  • Ring package: 1.2mm x 1.2mm x 2.0mm

Each kit includes forged pistons, high-quality piston rings, wrist pins, and locks. Made in USA with CP-Carrillo's legendary quality and precision engineering.

Professional installation required. Engine builders must verify piston-to-valve clearance, ring end gaps, and deck height during assembly for optimal performance and longevity.

Good and found what I needed at the best price I could find then everyone. Els

So far all good. If this part fixes the problem all will be cool! I will try to put it in soon but the package it came in looks pretty bad. Taped up

Very easy website

first time, hope all goes smooth

I received an email with a coupon code, that made my decide to purchase the item Allan left in my shopping cart. I entered the code and it said it wasn't able to use it for my order. I thought it was because at that point i had only got a estimate for shipping which was $8.00. When i put in my shipping address the shipping went up to $10.05. I thought then I would be able to add the coupon code but then it was too late. What a scam.

Autoplicity had the best price on the part I wanted. It was shipped fast directly from the manufacturer. When I opened the box, there were some cosmetic blemishes, so I called Autoplicity at 6pm EST. Rob immediately answered the phone, looked at the pictures I sent him through e-mail, then forwarded the pictures to a representative at the manufacturer. Rob then called me back and gave me the name, phone number and extension of the person I needed to speak to. After giving my information to that person, a pre-paid return label was e-mailed to me from the manufacturer, and that same week, I had the replacement part in my possession. Great customer service!

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