Overview Reviews Product Description UNIVERSAL PARTS 63mm BORE BIG BORE CYLINDER KIT FOR 150cc GY6 4-STROKE ENGINES. UPGRADES TO 180cc BASED ON A STOCK STROKE OF 57.8mm INCLUDES CYLINDER, PISTON, PIN, CIR CLIPS, RINGS, HEAD GASKET AND BASE GASKET. FITS STANDARD 54m SPACING *A BLOCK* ENGINE BLOCK BORING REQUIRED! UPGRADES TO 180cc BORE: 63mm OVERALL HEIGHT: 90.5mm CYLINDER SLEEVE OUTER DIAMETER: 64.9mm Product Videos Custom Field Product Reviews Write a Review Write a Review × UNIVERSAL PARTS 180cc *63mm BORE* BIG BORE CYLINDER KIT FOR 150cc GY6 ENGINES (54mm SPACING) Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *
Quick view Details GY6 STORE | sku: 63MMT 180cc 63mm *54mm SPACING* BIG BORE KIT FOR SCOOTER ATV UTV WITH 150cc GY6 MOTORS MSRP: Now: $169.95 Out of stock SALE Quick view Details NCY | sku: 1100-1408 NCY GY6 CYLINDER GASKET SET (63mm BORE) 180cc *54mm SPACING* MSRP: $14.00 Was: $14.00 Now: $13.25 Add to Cart Quick view Details TAIDA | sku: GY6-01054-63 TAIDA 180cc - 206cc (63mm BORE) GY6 CYLINDER SET WITH *54mm SPACING* MSRP: Now: $110.95 Choose Options Quick view Details GY6 STORE | sku: 63MMC 180cc 63mm *54mm SPACING* BIG BORE KIT FOR SCOOTER ATV UTV W/ 150cc GY6 MOTORS MSRP: Now: $139.95 Out of stock SALE Quick view Details NCY | sku: 1100-1278 NCY PERFORMANCE GY6 CYLINDER GASKET SET (63mm BORE) 180cc *54mm SPACING* MSRP: $10.00 Was: $10.00 Now: $9.50 Add to Cart Quick view Details TAIDA | sku: GY6-GAS61-54 TAIDA PERFORMANCE GY6 180cc CYLINDER GASKET SET (63mm BORE) 54mm SPACING MSRP: Now: $11.95 Add to Cart Quick view Details GY6 STORE | sku: 1100-1418 GY6 BIG BORE CRANKCASE ASSEMBLY FOR 58mm, 61mm, 63mm CYLINDER BORE *54mm SPACING* MSRP: Now: $165.00 Add to Cart Quick view Details SSP-G | sku: 169-198 180cc (63mm BORE) CYLINDER GASKET SET GY6 A-BLOCK 76mm DIAGONAL *54mm SPACING* MSRP: Now: $10.95 Add to Cart ×
SALE Quick view Details NCY | sku: 1100-1408 NCY GY6 CYLINDER GASKET SET (63mm BORE) 180cc *54mm SPACING* MSRP: $14.00 Was: $14.00 Now: $13.25 Add to Cart
Quick view Details TAIDA | sku: GY6-01054-63 TAIDA 180cc - 206cc (63mm BORE) GY6 CYLINDER SET WITH *54mm SPACING* MSRP: Now: $110.95 Choose Options Quick view Details GY6 STORE | sku: 63MMC 180cc 63mm *54mm SPACING* BIG BORE KIT FOR SCOOTER ATV UTV W/ 150cc GY6 MOTORS MSRP: Now: $139.95 Out of stock SALE Quick view Details NCY | sku: 1100-1278 NCY PERFORMANCE GY6 CYLINDER GASKET SET (63mm BORE) 180cc *54mm SPACING* MSRP: $10.00 Was: $10.00 Now: $9.50 Add to Cart Quick view Details TAIDA | sku: GY6-GAS61-54 TAIDA PERFORMANCE GY6 180cc CYLINDER GASKET SET (63mm BORE) 54mm SPACING MSRP: Now: $11.95 Add to Cart Quick view Details GY6 STORE | sku: 1100-1418 GY6 BIG BORE CRANKCASE ASSEMBLY FOR 58mm, 61mm, 63mm CYLINDER BORE *54mm SPACING* MSRP: Now: $165.00 Add to Cart Quick view Details SSP-G | sku: 169-198 180cc (63mm BORE) CYLINDER GASKET SET GY6 A-BLOCK 76mm DIAGONAL *54mm SPACING* MSRP: Now: $10.95 Add to Cart ×
Quick view Details GY6 STORE | sku: 63MMC 180cc 63mm *54mm SPACING* BIG BORE KIT FOR SCOOTER ATV UTV W/ 150cc GY6 MOTORS MSRP: Now: $139.95 Out of stock SALE Quick view Details NCY | sku: 1100-1278 NCY PERFORMANCE GY6 CYLINDER GASKET SET (63mm BORE) 180cc *54mm SPACING* MSRP: $10.00 Was: $10.00 Now: $9.50 Add to Cart Quick view Details TAIDA | sku: GY6-GAS61-54 TAIDA PERFORMANCE GY6 180cc CYLINDER GASKET SET (63mm BORE) 54mm SPACING MSRP: Now: $11.95 Add to Cart Quick view Details GY6 STORE | sku: 1100-1418 GY6 BIG BORE CRANKCASE ASSEMBLY FOR 58mm, 61mm, 63mm CYLINDER BORE *54mm SPACING* MSRP: Now: $165.00 Add to Cart Quick view Details SSP-G | sku: 169-198 180cc (63mm BORE) CYLINDER GASKET SET GY6 A-BLOCK 76mm DIAGONAL *54mm SPACING* MSRP: Now: $10.95 Add to Cart ×
SALE Quick view Details NCY | sku: 1100-1278 NCY PERFORMANCE GY6 CYLINDER GASKET SET (63mm BORE) 180cc *54mm SPACING* MSRP: $10.00 Was: $10.00 Now: $9.50 Add to Cart
Quick view Details TAIDA | sku: GY6-GAS61-54 TAIDA PERFORMANCE GY6 180cc CYLINDER GASKET SET (63mm BORE) 54mm SPACING MSRP: Now: $11.95 Add to Cart Quick view Details GY6 STORE | sku: 1100-1418 GY6 BIG BORE CRANKCASE ASSEMBLY FOR 58mm, 61mm, 63mm CYLINDER BORE *54mm SPACING* MSRP: Now: $165.00 Add to Cart Quick view Details SSP-G | sku: 169-198 180cc (63mm BORE) CYLINDER GASKET SET GY6 A-BLOCK 76mm DIAGONAL *54mm SPACING* MSRP: Now: $10.95 Add to Cart ×
Quick view Details GY6 STORE | sku: 1100-1418 GY6 BIG BORE CRANKCASE ASSEMBLY FOR 58mm, 61mm, 63mm CYLINDER BORE *54mm SPACING* MSRP: Now: $165.00 Add to Cart Quick view Details SSP-G | sku: 169-198 180cc (63mm BORE) CYLINDER GASKET SET GY6 A-BLOCK 76mm DIAGONAL *54mm SPACING* MSRP: Now: $10.95 Add to Cart ×
Quick view Details SSP-G | sku: 169-198 180cc (63mm BORE) CYLINDER GASKET SET GY6 A-BLOCK 76mm DIAGONAL *54mm SPACING* MSRP: Now: $10.95 Add to Cart