JE-Pistons Kit VW 1.8T 20V 81.50mm(8.5:1)FSR-Perfect skirtProduct specifications Attribute Value Bore Actual 81. 50 mm Bore Oversize 0. 50 mm Build Type Build to Stock Compression Height 32. 66 mm Compression Ratio Actual 8. 5: 1 Deck Clearance 0. 14 mm Dome Volume 11. 3 cc GTIN 00193564216052 Image Info These images are actual Package Height 139,00 mm Package Length 279,00 mm Package Weight 1946. 00 g Package Width 150,00 mm Piston Pin Diameter 20. 00 mm Ring Set Included JG1004 3209 Stroke 86. 40 mm Weight