Mitsubishi
1st Generation 6-Bolt
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 1988-92 4G63 2.0 Liter 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!
K559M85 K559M855 K559M86 K559M865 $505	85.00 85.50 86.00 86.50	Std .020 .040 .060	3.465	5.905	1.378	-17	8.3	324 332 340 348 _	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.

Eclipse 1988-92 4G63 (1400H.D. with .225" wall tool steel pins) 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!
K625M85 K625M855 K625M86 K625M865 $595	85.00 85.50 86.00 86.50	Std .020 .040 .060	3.465	5.905	1.378	-14	8.5	336 343 350 357 _	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.

Eclipse 1988-92 4G63 (9.0:1 version) 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!
K560M85 K560M855 K560M86 K560M865 $505	85.00 85.50 86.00 86.50	Std .020 .040 .060	3.465	5.905	1.378	-10	9.0	343 349 361 369 _	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.

Eclipse 1988-92 4G63 with 4G64 Stroker (= 2.3 Liter) 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!
K571M85 K571M855 K571M86 $505	85.00 85.50 86.00	Std .020 .040	3.937	5.905	1.130	-21	8.8	284 289 296 _	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.