For GMC Terrain Cadillac ATS CT6 Chevy Malibu 13-20 Pistons & Rings Kit 12652809
The 2.0L LTG I4 engine (found in Buick, Chevrolet, Cadillac, and GMC models) features a bore and stroke of 86.0 mm and a compression ratio of 9.5:1; depending on the specific assembly variant (OEM or aftermarket), the piston pin diameter measures either 22 mm or 24 mm. These pistons are typically manufactured from ZL109 aluminum alloy.
Description
Piston Assembly Key Specifications:
Bore Diameter: 86.00 mm (Standard).
Compression Ratio: 9.5:1.
Engine Type: Inline-4 (RPO Code: LTG).
Piston Material: ZL109 Aluminum Alloy (OEM Part Number: 12652809).
Compression Height: 34.5 mm.
Piston Pin Diameter: 24.0 mm (Factory OEM) or 22 mm (Aftermarket).
Piston Ring Set Specifications: Typically 1.2 mm / 1.5 mm / 2.0 mm (Top / Second / Oil Ring).
Piston Crown Height: 1.155–1.725 mm below the cylinder block deck.
Cylinder Bore Roundness Error (Max): 0.013 mm.
