Mitsubishi
420A Series
Sport Compact Piston Kits

• Always check piston to valve clearance - If using VTEC or like mechanisms-check w/ longer duration higher lift lobe.
• Always run at least .030 piston to head clearance including gasket thickness.
• If piston appears to be different than expected, please do not hesitate to call Performance Auto Parts at 888-732-1595 to verify compatibility.

Eclipse 1995-02 DOHC (same as neon DOHC engine) Pistons listed with a compression ratio range: low number is with un-cut deck, high number is block decked to .030 piston to cylinder head clearance.
Part #	Bore	Over Size	Stroke	Rod Lgth	Comp. Ht.	Piston cc's	Comp. Ratio	Gram	Foot Notes	Purchase Online!
K580M875 K580M88 K580M885 $505	87.50 88.00 88.50	Std .020 .040	3.268	5.472	1.236	-5	8.8	331 339 347 _	1	Discounted Prices!
K581M875 K581M88 K581M885 $519	87.50 88.00 88.50	Std .020 .040	3.268	5.472	1.236	5	10.5	334 341 349 _	1	Discounted Prices!

• Footnotes:
• 1. Most Wiseco pistons have offset pins. Pins must be offset same as o.e. for quietest operation (pin offset will be opposite of direction of engine rotation).
• 2. Due to a compression height that may protrude above the deck, it is recommended that a .040" thick head gasket is used.

Starion Conquest TSI 1984-89 G54B Pistons listed with a compression ratio range: low number is with un-cut deck, high number is block decked to .030 piston to cylinder head clearance.
Part #	Bore	Over Size	Stroke	Rod Lgth	Comp. Ht.	Piston cc's	Comp. Ratio	Gram	Foot Notes	Purchase Online!
K555M92 K555M925 $505	92.00 92.50	.031 .051	3.858	6.535	1.390	-17	7.25-7.8	382 396	1	Discounted Prices!

• Footnotes:
• 1. Most Wiseco pistons have offset pins. Pins must be offset same as o.e. for quietest operation (pin offset will be opposite of direction of engine rotation).
• 2. Due to a compression height that may protrude above the deck, it is recommended that a .040" thick head gasket is used.

3000GT 6G72 Pistons listed with a compression ratio range: low number is with un-cut deck, high number is block decked to .030 piston to cylinder head clearance.
Part #	Bore	Over Size	Stroke	Rod Lgth	Comp. Ht.	Piston cc's	Comp. Ratio	Gram	Foot Notes	Purchase Online!
K570M915 K570M92 K570M925 $681	91.50 92.00 92.50	.015 .035 .055	2.991	5.548	1.250	-14	8.0-8.3	343 355 362	1	Discounted Prices!

• Footnotes:
• 1. Most Wiseco pistons have offset pins. Pins must be offset same as o.e. for quietest operation (pin offset will be opposite of direction of engine rotation).
• 2. Due to a compression height that may protrude above the deck, it is recommended that a .040" thick head gasket is used.