Model		Part No	Sizes Available											O.D.	I.D.	Top	Seal	OAL
Evolution - Standard Valve Guide	In	5184 -	00	01	02	03	04	05	06	08	10	12		.5620	.3111	0.420	4585	2.40
With .420" Top Dia.	Ex	5185 -	00	01	02	03	04	05	06	08	10	12		.5620	.3115	0.420	4585	2.40
Evolution - Twin Cam	In	5186 -	00	01	02	03	04	05	06	08	10	12		.5620	.3111	0.531	0041	2.20
With .531" Top Dia.	Ex	5187 -	00	01	02	03	04	05	06	08	10	12		.5620	.3115	0.531	0041	2.20
Shovel Head	In	5100 -	00	01	02	03	04	05	06	08	10	12		.6245	.3780	0.625	0095	1.98
Standard Circlip Type.	Ex	5101 -	00	01	02	03	04	05	06	08	10	12		.6245	.3770	0.625	0095	1.98
Shovel Head - Flange Type .625"Top	In	5104 -	00	01	02	03	04	05	06	08	10	12		.6245	.3780	0.625	0095	1.94
.040" Shorter Spring Side	Ex	5105 -	00	01	02	03	04	05	06	08	10	12		.6245	.3770	0.625	0095	1.94
Shovel Head - Flange Type .531" Top	In	5120 -	00	01	02	03	04	05	06	08	10	12		.6245	.3780	0.531	0040	1.92
.060"  Shorter Spring Side	Ex	5121 -	00	01	02	03	04	05	06	08	10	12		.6245	.3770	0.531	0040	1.92
74" Pan / Shovel	In	5131 -	00	01	02	03	04	05	06	08	10	12	20	.5655	.3780	0.562	4400	2.05
Standard Valve Guide	Ex	5132 -	00	01	02	03	04	05	06	08	10	12	20	.5655	.3770	0.562	4400	2.05
74" Pan / Shovel	In	5111 -	00	01	02	03	04	05	06	08	10	12	20	.5655	.3780	0.625	0095	1.94
With Big Top .625"	Ex	5112 -	00	01	02	03	04	05	06	08	10	12	20	.5655	.3770	0.625	0095	1.94
X-L Sportster	In	5142 -	00	01	02	03								.5645	.3100	0.531	0041	1.73
Late '79-UP(No Flange)	Ex	5143 -	00	01	02	03								.5645	.3400	0.531	0043	1.86
X-L Sportster	In	5140 -	00	01	02	03	04							.5645	.3100	0.531	0041	1.73
1957-E '79 (With Flange)	Ex	5141 -	00	01	02	03	04							.5645	.3400	0.531	0043	1.86
Knuckle Head	In	5148 -	00	01	02	03	04		06					.6438	.3765			2.01
1936-'48	Ex	5149 -	00	01	02	03	04		06					.6438	.3770			2.01
45 Flat Head		5145 -	00	01	02		04		06					.5645	.3424			2.77
74-80 Flat Head		5180 -	00	01	02		04		06					.5950	.3740			3.22