Carrillo SC7538-4 Forged Piston Set Mazda 2.3L DISI MZR 87.5mm 9.5:1

Designed for enthusiasts and racers building boosted or high-output applications, these pistons deliver the strength, precision, and reliability that CP-Carrillo is known for worldwide.

Key Specifications:

• Bore: 87.5mm (STD)
• Compression Ratio: 9.5:1
• Pin Diameter: 22mm
• Rod Length: 150.55mm
• Compression Height: 1.28 in
• Ring Pack: 1.0 x 1.2 x 2.8mm

Key Features:

• Manufactured from high-strength 2618-T61 aluminum alloy forgings for superior durability under extreme heat and cylinder pressure
• Ideal for turbocharged, high-boost, and high-performance sport compact engine builds
• Each kit includes forged pistons, matched performance ring pack, wrist pins (gudgeon pins), and locks — everything needed for piston assembly
• Optional upgrade to 9310 steel wrist pins available for high-boost, high-RPM, or nitrous applications
• Compatible with aftermarket connecting rods — these pistons do not fit OEM factory rods
• Precision-engineered using advanced CAD/CAM design and manufactured to tight tolerances
• Fully balanced and tested for maximum sealing and reliability in high-load environments

Important Installation Note: As with all forged performance pistons, correct piston-to-wall clearance, ring end gaps, deck height, and pin fitment must be verified during assembly. Professional engine building or machining is recommended to ensure maximum performance and longevity.

CP-Carrillo forged pistons are trusted across all forms of motorsports — from street performance builds to full race applications — and are handcrafted in the USA to the highest quality standards.