MONSTER SPORT-Forged piston kit For Swift Sport ZC31S

-Easy to install:
Doesn't need cylinder block modyfy.
Just install like standard pistons.
(Same displacement)

-Piston detail (profile, clearance, thickness, strength, weight balance, etc) is designed by engine development group of WRC team.

-"Gas sealing" and "Gas blow-by" and "Oil consumption" will be improved by modified piston design.

-Material is forged aluminum, correspondence with severe situation such as circuit driving.

Supporting ribs located at Piston Skirt in order to reinforce regions.

Standard Piston

	131565-9240M F6A DOHC Turbo	131568-9440M K6A DOHC Turbo
Displacement	657cc	658cc
Piston Dia	Dia 64.97mm	Dia 67.97mm
Compression height	26.5mm	25.5mm
Piston Crown	9.6cc	7.3cc
From Cylinder Block Top	0.2mm	0.2mm
Compression	8.3 *1	8.4 *2
Piston Pin Dia	φ18mm	φ18mm
Piston Weight (pc)	154g	165g

*1 This compression ratio is measued with Monster head gasket 1.4t Dia67 171114-9200M

*2 This compression ratio is measued with Monster head gasket 0.7t Dia69 171107-9401M

Note: Please measure compression ratio after installing.

Part Name	Part number	Price	Model	Buy Online
F6A Forged Piston Kit [Dia65]	131565-9240M		F6A DOHC turbo
K6A Forged Piston Kit [Dia68]	131568-9440M		K6A DOHC turbo

Recommendation item: Monster head gasket

Contents

-Forged Piston X3
-Piston ring set X3
-Piston Pin X3
-Circlip X6