Wiseco Pistons for Acura

Wiseco Piston Applications: Acura

All Wiseco Pistons are sold with a ring set. Rings are available to order for rebuilding or refreshening of the engine.

Acura/Honda
Integra 94-01 B18C
Kit Part #	Bore MM / Inch	Over Sizes	Stroke	Rod Lgth.	Comp Ht.	Head cc's	Dome Dish	Gasket Thkness	Deck Clearance	Block Ht.	Comp. Ratio	Pin Dia.	Ring #	Gram	Foot Notes
K541M81	81.00 / 3.189	Std.	3.433	5.433	1.181	41.5	-12	.028	.017-	8.347	8.6-8.9	.827	8100xx	268	1
K541M815	81.50 / 3.209	.020	87.2	138	30	41.5	-12	0.75	0.43	212	8.6-8.9	21mm	8150xx	274	1
K542M81	81.00 / 3.189	Std.	3.433	5.433	1.175	41.5	FT -4	.028	.022-	8.347	9.7-10.2	.827	8100xx	268	1
K542M815	81.50 / 3.209	.020	87.2	138	30	41.5	FT -4	0.75	0.56	212	9.7-10.2	21mm	8150xx	276	1
K566M81	81.00 / 3.189	Std.	3.433	5.433	1.185	41.5	5	.028	.013-	8.347	11.8-12.25	.827	8100xx	275	1
K566M815	81.50 / 3.209	.020	87.2	138	30	41.5	5	0.75	0.33	212		21mm	8150xx	280	1
K566M82	82.00 / 3.228	.040											8200xx	284	1
K593M81	81.00 / 3.189	Std.	3.433	5.433	1.185	41.5	8.25	.028	.013-	8.347	12.7-13.2	.827	8100xx		1
K593M815	81.50 / 3.209	.020	87.2	138	30	41.5	8.25	0.75	0.33	212		21mm	8150xx		1
K583M82	82.00 / 3.228	.040											8200xx		1
Integra 90-00 B18A1/B1
Kit Part #	Bore MM / Inch	Over Sizes	Stroke	Rod Lgth.	Comp Ht.	Head cc's	Dome Dish	Gasket Thkness	Deck Clearance	Block Ht.	Comp. Ratio	Pin Dia.	Ring #	Gram	Foot Notes
K541M81	81.00 / 3.189	Std.	3.504	5.394	1.181	45	-12	.028	.020-	8.347	8.3-8.6	.827	8100xx	268	1
K541M815	81.50 / 3.209	.020	89	137	30	45	-12	0.75	0.50	212	8.3-8.6	21mm	8150xx	274	1
K542M81	81.00 / 3.189	Std.	3.504	5.394	1.175	45	FT -4	.028	.026-	8.347	9.3-9.8	.827	8100xx	268	1
K542M815	81.50 / 3.209	.020	89	137	29.85	45	FT -4	0.75	0.66	212	9.3-9.8	21mm	8150xx	276	1
K566M81	81.00 / 3.189	Std.	3.504	5.394	1.185	45	5	.028	.016-	8.347	11.1-11.6	.827	8100xx	275	1
K566M815	81.50 / 3.209	.020	89	137	30.1	45	5	0.75	0.40	212		21mm	8150xx	280	1
K566M82	82.00 / 3.228	.040											8200xx	284	1
K593M81	81.00 / 3.189	Std.	3.504	5.394	1.185	45	8.25	.028	.013-	8.347	12-12.4	.827	8100xx		1
K593M815	81.50 / 3.209	.020	89	137	30	45	8.25	0.75	0.33	212		21mm	8150xx		1
K593M82	82.00 / 3.228	.040											8200xx		1
Integra GSR 92-93 B17A1
Kit Part #	Bore MM / Inch	Over Sizes	Stroke	Rod Lgth.	Comp Ht.	Head cc's	Dome Dish	Gasket Thkness	Deck Clearance	Block Ht.	Comp. Ratio	Pin Dia.	Ring #	Gram	Foot Notes
K542M81	81.00 / 3.189	Std.	3.205	5.208	1.175	42.7	FT -4	.028	.012-	7.998	9.1-9.4	.827	8100xx	268	1
K542M815	81.50 / 3.209	.020	81.4	132.3	29.85	42.7	FT -4	0.75	0.3	203.2	9.1-9.4	21mm	8150xx	276	1
K566M81	81.00 / 3.189	Std.	3.205	5.208	1.185	42.7	5	.028	.003-	7.998	10.9-11.25	.827	8100xx	275	1
K566M815	81.50 / 3.209	.020	81.4	132.3	30.1	42.7	5	0.75	0.08	203.2		21mm	8150xx	280	1
K566M82	82.00 / 3.228	.040											8200xx	284	1
K593M81	81.00 / 3.189	Std.	3.205	5.208	1.185	42.7	8.25	.028	.003-	7.998	13:1	.827	8100xx		1
K593M815	81.50 / 3.209	.020	81.4	132.3	30	42.7	8.25	0.75	0.08	203.2		21mm	8150xx		1
K593M82	82.00 / 3.228	.040											8200xx		1
Civic SI 93-2001 B16A
Kit Part #	Bore MM / Inch	Over Sizes	Stroke	Rod Lgth.	Comp Ht.	Head cc's	Dome Dish	Gasket Thkness	Deck Clearance	Block Ht.	Comp. Ratio	Pin Dia.	Ring #	Gram	Foot Notes
K542M81	81.00 / 3.189	Std.	3.047	5.290	1.175	42.7	FT -4	.028	.010-	7.998	8.8-9.0	.827	8100xx	268	1
K542M815	81.50 / 3.209	.020	77.4	134.4	29.85	42.7	FT -4	0.75	0.3	203.2	8.8-9.0	21mm	8150xx	276	1
K566M81	81.00 / 3.189	Std.	3.047	5.290	1.185	42.7	5	.028	.000	7.998	10.75:1	.827	8100xx	275	1
K566M815	81.50 / 3.209	.020	77.4	134.4	30.1	42.7	5	0.75	0	203.2		21mm	8150xx	280	1
K566M82	82.00 / 3.228	.040											8200xx	284	1
K593M81	81.00 / 3.189	Std.	3.047	5.290	1.185	42.7	8.25	.028	.000	7.998	11.5:1	.827	8100xx		1
K593M815	81.50 / 3.209	.020	77.4	134.4	30	42.7	8.25	0.75	0	203.2		21mm	8150xx		1
K593M82	82.00 / 3.228	.040											8200xx		1
CRV/VTEC 97-02 B20B with B16A Head
Kit Part #	Bore MM / Inch	Over Sizes	Stroke	Rod Lgth.	Comp Ht.	Head cc's	Dome Dish	Gasket Thkness	Deck Clearance	Block Ht.	Comp. Ratio	Pin Dia.	Ring #	Gram	Foot Notes
K545M84	84.00 / 3.307	Std.	3.504	5.394	1.181	42.7	-18	.028	.020-	8.347	8.4-8.8	.827	8400xx	271	1
K545M845	84.50 / 3.327	.020	89	137	30	42.7	-18	0.71	0.5	212	8.4-8.8	21mm	8450xx	277	1
K545M85	85.00/3.347	.040												284	1
K567M84	84.00 / 3.307	Std.	3.504	5.394	1.181	42.7	2	.028	.021-	8.347	11.3-12.0	.827	8400xx	282	1
K567M845	84.50 / 3.327	.020	89	137	30	42.7	2	0.71	0.5	212		21mm	8450xx	287	1
K567M85	85.00 / 3.346	.040											8500xx	293	1
K594M84	84.00 / 3.307	Std.	3.504	5.394	1.185	42.7	8.25	.028	.02	8.347		.827	8400xx		1
K594M845	84.50 / 3.327	.020	89	137	1.185	42.7	8.25	0.71	.5	212	13.2-14.2	21mm	8450xx		1
K594M85	85.00 / 3.346	.040											8500xx		1
K594M855	85.50/3.366	.060											8550xx		1
K594M86	86.00/3.386	.080											8600xx		1
RSX-S 2002 K20-FRM bores need to be sleeved for best results
Kit Part #	Bore MM / Inch	Over Sizes	Stroke	Rod Lgth.	Comp Ht.	Head cc's	Dome Dish	Gasket Thkness	Deck Clearance	Block Ht.	Comp. Ratio	Pin Dia.	Ring #	Gram	Foot Notes
K568M86	86.00 / 3.386	Std.	3.386	5.472	1.181	50.5	-9	.025	.001	8.347	9.0	.866	8600xx	290	1,2
K568M87	87.00 / 3.425	.040	86	139	30	50.5	-9	0.63	0.02	212	9.0	22mm	8700xx	303	1,2
k568m88	88.00 / 3.464	.080											8800xx		1,2
k568m89	89.00 / 3.504	.120											8900xx		1,2
K573M86	86.00 / 3.386	Std.	3.386	5.472	1.181	50.5	8	.025	.001	8.351	11.7	.866	8600xx	320	1,2
K573M87	87.00 / 3.425	.040	86	139	30	50.5	8	0.63	0.02	212.1	11.7	22mm	8700xx	335	1,2
k573m88	88.00 / 3.464	.080											8800xx		1,2
k573m89	89.00 / 3.504	.120											8900xx		1,2
K24 w/ K20 cylinder head-FRM bores need to be sleeved for best results
Kit Part #	Bore MM / Inch	Over Sizes	Stroke	Rod Lgth.	Comp Ht.	Head cc's	Dome Dish	Gasket Thkness	Deck Clearance	Block Ht.	Comp. Ratio	Pin Dia.	Ring #	Gram	Foot Notes
K568M87	87.00 / 3.425	Std.	3.897	5.984	1.181	50.5	-9	.025	0	9.114	10.5	.866	8700xx	290	1,2
k568m88	88.00 / 3.464	.040	99	152	30	50.5	-9	0.63	0	231.5	10.5	22mm	8800xx	303	1,2
k568m89	89.00 / 3.504	.080											8900xx		1,2
K573M87	87.00 / 3.425	Std.	3.897	5.984	1.181	50.5	8	.025	0	9.114	13.7	.866	8700xx	320	1,2
k573m88	88.00 / 3.464	.040	99	152	30	50.5	8	0.63	0	231.5	13.7	22mm	8800xx	335	1,2
k573m89	89.00 / 3.504	.080											8900xx		1,2
Prelude 92-1995 Iron bore H22, 96+ FRM cylinders must run SLEEVED Bores
Kit Part #	Bore MM / Inch	Over Sizes	Stroke	Rod Lgth.	Comp Ht.	Head cc's	Dome Dish	Gasket Thkness	Deck Clearance	Block Ht.	Comp. Ratio	Pin Dia.	Ring #	Gram	Foot Notes
K544M87	87.00 / 3.425	Std.	3.571	5.636	1.219	53.8	-14	.028	.015-	8.655	8.3-8.5	.866	8700xx	314	1,2
K544M88	88.00 / 3.464	.040	90.7	143.15	31	53.8	-14	0.71	0.38	219.9		22mm	8800xx	331	1,2
K544M89	89.00 / 3.504	.080											8900xx	337	1,2
K572M87	87.00 / 3.425	Std.	3.571	5.636	1.219	53.8	7	.028	.015-	8.655	11-11.5	.866	8700xx	333	1,2
K572M88	88.00 / 3.464	.040	90.7	143.15	31	53.8	7	0.71	0.38	219.9		22mm	8800xx	346	1,2
K572M89	89.00 / 3.504	.080											8900xx	355	1,2
Prelude H23-To be run w/ .030 piston to head minimum (requires .040 gasket at least!)
Kit Part #	Bore MM / Inch	Over Sizes	Stroke	Rod Lgth.	Comp Ht.	Head cc's	Dome Dish	Gasket Thkness	Deck Clearance	Block Ht.	Comp. Ratio	Pin Dia.	Ring #	Gram	Foot Notes
K544M87	87.00 / 3.425	Std.	3.740	5.571	1.219	50	-14	.028	.005+	8.655	9:1	.866	8700xx	314	1,2
K544M88	88.00 / 3.464	.040	95	141.5	31	50	-14	0.71	.12+	219.9		22mm	8800xx	331	1,2
K544M89	89.00 / 3.504	.080											8900xx	337	1,2
K572M87	87.00 / 3.425	Std.	3.740	5.571	1.219	50	7	.028	.005+	8.655	13:1	.866	8700xx	333	1,2
K572M88	88.00 / 3.464	.040	95	141.5	31	50	7	0.71	.12+	219.9		22mm	8800xx	346	1,2
K572M89	89.00 / 3.504	.080											8900xx	355	1,2
Civic SOHC 92-95 D16Z6
Kit Part #	Bore MM / Inch	Over Sizes	Stroke	Rod Lgth.	Comp Ht.	Head cc's	Dome Dish	Gasket Thkness	Deck Clearance	Block Ht.	Comp. Ratio	Pin Dia.	Ring #	Gram	Foot Notes
K546M755	75.50 / 2.972	.020	3.543	5.394	1.174	34.6	-15.4	.028	.008-	8.347	8.5:1	.748	7550xx	232	1
		.5mm	90	137	29.81	34.6	-15.4	0.71	0.2	212	8.5	19mm
Civic SOHC 96-98 D16Y8
Kit Part #	Bore MM / Inch	Over Sizes	Stroke	Rod Lgth.	Comp Ht.	Head cc's	Dome Dish	Gasket Thkness	Deck Clearance	Block Ht.	Comp. Ratio	Pin Dia.	Ring #	Gram	Foot Notes
K543M755	75.50 / 2.972	.020	3.543	5.394	1.148	32.8	-14	.028	.033-	8.347	8.5-9.0	.748	7550xx	230	1
		.5mm	90	137	29.15	32.8	-14	0.71	0.84	212	8.5-9.0	19mm

1. Most Wiseco pistons have offset pins. Pins must be offset same as o.e. for quitest operation - pin offset will be opposite of direction of engine rotation.

2. This piston is a flat top w/out valve pockets, to be used if verifying piston to valve and piston to head clearance.

5. There are different versions of this engine for Audi - do visual inspection of dish/valvepocket area to verify compatibility.

Some pistons are listed with a range of compression ratio's. The low number is determined with an un-cut deck and the higher number is determined with .030 piston to cylinder head clearance.
Always check piston to valve clearance - If using VTEC or like mechanisms-check with 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 Wiseco at 800-321-1364 to verify compatibility

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Wiseco Piston Applications: Acura

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