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SSP-G 67mm Big Bore Cylinder Kit - GY6-B 57mm Stud Spacing — current source view 1 [P056-49049219825944]

SSP-G 67mm Big Bore Cylinder Kit - GY6-B 57mm Stud Spacing

$390.00
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SSP-G 67mm Big Bore Cylinder Kit - GY6-B 57mm Stud Spacing — current source view 1 [P056-49049219825944]
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  • SSP-G 67mm Big Bore Cylinder Kit - GY6-B 57mm Stud Spacing — current source view 1 [P056-49049219825944]
  • SSP-G 67mm Big Bore Cylinder Kit - GY6-B 57mm Stud Spacing — current source view 2 [P056-49049219858712]
  • SSP-G 67mm Big Bore Cylinder Kit - GY6-B 57mm Stud Spacing — current source view 3 [P056-49049219793176]
  • SSP-G 67mm Big Bore Cylinder Kit - GY6-B 57mm Stud Spacing — product image 4
SSP-G 67mm Big Bore Cylinder Kit - GY6-B 57mm Stud Spacing

SSP-G 67mm Big Bore Cylinder Kit - GY6-B 57mm Stud Spacing

$390.00
Part number 169-573

Check dimensions and compatibility before ordering.
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This SSP-G 67mm four-valve cylinder kit is a big-bore upgrade for compatible GY6 B-case / GY7 builds, giving you the foundation for a stronger-pulling off-road engine. A ceramic-coated cylinder helps dissipate heat and reduce friction, while the forged piston provides strength for a performance build. Pair it with a matching four-valve Cygnus-style head and the appropriate crankshaft; the nominal 232cc configuration requires a separate 66mm-stroke crankshaft.

This product is intended for off-road use only. This product is not intended for use on public roads or land.

Features

  • 67mm big-bore foundation: Supports a larger-displacement engine build with the matching head and crankshaft combination.
  • Ceramic-coated cylinder: Improves heat dissipation and reduces friction.
  • Forged piston: Stronger and lighter than a cast piston for high-performance applications.
  • Four-valve configuration: Designed for a compatible Cygnus-style four-valve cylinder head.
  • B-case mounting: Requires 57mm cylinder-stud spacing.
  • Included rebuild components: Cylinder, piston, rings, wrist pin, circlips, head gasket and base gasket.

Specifications

  • Brand: SSP-G
  • Part number: 169-573
  • Part type: Big-bore cylinder and piston kit
  • Bore: 67mm
  • Cylinder height: 76mm
  • Overall height: 103.5mm
  • Cylinder-stud spacing: 57mm, B-case
  • Wrist pin diameter: 15mm
  • Cylinder coating: Ceramic
  • Piston construction: Forged
  • Required cylinder head: Compatible four-valve Cygnus-style head, not included
  • Nominal 232cc build: Requires a separate 66mm (+8.2mm) stroker crankshaft; displacement depends on the completed bore-and-stroke combination
  • Country of origin: Taiwan

Model Fitment

Engine platform Required configuration
GY6-B / GY7 / 161QMK four-stroke builds B-case with 57mm cylinder-stud spacing and matching four-valve head
GY6 125/150cc QMI152 / QMJ157 applications Compatible B-case configuration only; confirm 57mm stud spacing and complete build dimensions

 

Engine code or long-case designation alone does not establish fitment. Confirm crankcase cylinder-opening clearance, cylinder height, wrist pin, crankshaft stroke and head compatibility before assembly. Cygnus-style describes the head design, not direct Yamaha Cygnus model fitment. The kit includes the cylinder, forged piston, rings, wrist pin, circlips, head gasket and base gasket; the cylinder head and stroker crankshaft are separate.

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