Iron head engines with 11/32" stem & 0.500" guide OD. Viton. May require shorter guide. (100 pack).
2.0L / 121 SOHC L4 8V "C" 89.32mm Bore 83-88
FORD
2.3L / 140 OHV L4 8V "R,S,X" HSC 3.680" Bore 84-94
FORD
2.3L / 140 SOHC L4 8V "2,A,B" 3.780" Bore 77-97
FORD
2.3L / 140 SOHC L4 8V "T,W" Turbo 3.780" Bore 79-88
FORD
2.3L / 140 SOHC L4 8V Natural Asp. 3.780" Bore 74-93
FORD
2.5L / 151 OHV L4 8V "1,2,5,9,R,U,V" Pont. 4.000" Bore 77-92
GM
2.5L / 151 OHV L4 8V "A,E" Pont. 4.000" Bore 85-93
GM, CHEVROLET
2.5L / 151 OHV L4 8V Pont. 4.000" Bore 80-83
AMC,
JEEP
2.5L / 153 OHV L4 8V "D" HSC 3.680" Bore 86-91
FORD
2.5L / 153 OHV L4 8V Chev. 3.875" Bore 62-70
GM
2.5L / 153 OHV L4 8V Chev. 3.875" Bore 63-65
GM, CHEVROLET
2.8L / 173 OHV V6 12V "B,R" Chev. 89.00mm Bore 82-93
GM, CHEVROLET
2.8L / 173 OHV V6 12V Chev. 3.504" Bore 84-86
JEEP
2.8L / 173 OHV V6 12V Chev. 89.00mm Bore 80-89
GM
2.8L / 2835 OHV V6 12V "R" GM 89.00mm Bore 89-91
ISUZU
3.0L / 181 OHV V6 12V "E,L" Buick 3.800" Bore 82-88
GM
3.1L / 189 OHV V6 12V "D" Chev. 89.00mm Bore 90-95
GM, CHEVROLET
3.1L / 189 OHV V6 12V "J,M,T,W" Chev. 89.00mm Bore 88-05
GM
3.1L / 3137 OHV V6 12V "Z" GM 89.00mm Bore 91-94
ISUZU
3.2L / 194 OHV L6 12V Chev. 3.563" Bore 62-67
GM
3.2L / 194 OHV L6 12V Chev. 3.563" Bore 63-66
GM, CHEVROLET
3.2L / 196 OHV V6 12V "C" Buick 3.500" Bore 78-79
GM
3.3L / 200 OHV V6 12V "M" Chev. 3.500" Bore 78-79
GM,
GM, CHEVROLET
3.3L / 204 OHV V6 12V "N" Buick 93.98mm Bore 89-93
GM
3.4L / 207 OHV V6 12V "E,S" Chev. 92.00mm Bore 93-05
GM
3.6L / 221 OHV V8 16V "L" 3.500" Bore 62-63
FORD
3.8L / 229 OHV V6 12V "9,K" Chev. 3.736" Bore 80-84
GM,
GM, CHEVROLET
3.8L / 230 OHV L6 12V Chev. 3.875" Bore 63-69
GM, CHEVROLET
3.8L / 230 OHV L6 12V Chev. 3.875" Bore 63-70
GM
3.8L / 231 OHV V6 12V "1,4" Buick 3800 S/C 96.50mm Bore 91-07
GM
3.8L / 231 OHV V6 12V "2,A" Buick 231 3.800" Bore 78-84
GM, CHEVROLET
3.8L / 231 OHV V6 12V "2,C,K,L" Buick 3800 96.50mm Bore 88-09
GM
3.8L / 231 OHV V6 12V "L" Buick 3800 96.50mm Bore 92-95
GM, CHEVROLET
3.8L / 231 OHV V6 12V Buick 231 3.800" Bore 75-88
GM
3.9L / 240 OHV L6 12V "1,A,J" 4.000" Bore 65-74
FORD
3.9L / 240 OHV L6 12V "B,E,V" 4.000" Bore 65-72
FORD
4.1L / 250 OHV L6 12V Chev. 3.875" Bore 65-79
GM
4.1L / 250 OHV L6 12V Chev. 3.875" Bore 66-84
GM, CHEVROLET
4.1L / 252 OHV V6 12V "4" Buick 3.965" Bore 80-84
GM
4.2L / 255 OHV V8 16V "D" 3.680" Bore 80-82
FORD
4.2L / 255 OHV V8 16V "D" 3.680" Bore 81-82
FORD
4.3L / 260 OHV V8 16V "8,F" Olds. Gas 3.500" Bore 75-82
GM
4.3L / 262 OHV V6 12V Chev. 4.000" Bore 88-95
GM
4.3L / 262 OHV V6 12V Vortec Chev. 4.000" Bore 85-16
GM,
GM, CHEVROLET,
WORKHORSE
4.3L / 262 OHV V6 12V "Z" Chev. 4.000" Bore 85-93
GM
4.3L / 262 OHV V6 12V Vortec Chev. 4.000" Bore 85-16
CHEVROLET,
GMC
4.3L / 262 OHV V8 16V "G" Chev. 3.671" Bore 75-76
GM
4.3L / 265 OHV V8 16V "S" Pont. 3.750" Bore 80-81
GM
4.3L / 265 OHV V8 16V Chev. 3.750" Bore 55-57
GM,
GM, CHEVROLET
4.4L / 267 OHV V8 16V "J" Chev. 3.500" Bore 79-82
GM,
GM, CHEVROLET
4.6L / 283 OHV V8 16V Chev. 3.875" Bore 57-67
GM,
GM, CHEVROLET
4.7L / 289 OHV V8 16V 4.000" Bore 63-68
FORD
4.7L / 289 OHV V8 16V 4.000" Bore 66-67
FORD
4.8L / 292 OHV L6 12V Chev. 3.875" Bore 63-89
GM, CHEVROLET
4.9L / 300 OHV L6 12V 4.000" Bore 65-96
FORD
4.9L / 300 OHV V8 16V Buick 3.750" Bore 64-67
GM
4.9L / 301 OHV V8 16V "T,W,Y" Pont. 4.000" Bore 77-81
GM
4.9L / 302 OHV V8 16V Chev 4.000" Bore 67-69
GM
5.0L / 302 OHV V8 16V 4.000" Bore 68-01
FORD
5.0L / 302 OHV V8 16V 4.000" Bore 68-95
FORD
5.0L / 305 OHV V8 16V Chev. Small Block 3.736" Bore
GM
5.0L / 305 OHV V8 16V Chev. 3.736" Bore 76-02
GM, CHEVROLET
5.0L / 305 OHV V8 16V Chev. 3.736" Bore 76-93
GM
5.0L / 307 OHV V8 16V "Y,9" Olds. 3.800" Bore 80-90
GM
5.0L / 307 OHV V8 16V Chev. 3.875" Bore 68-73
GM,
GM, CHEVROLET
5.3L / 326 OHV V8 16V Pont. 3.719" Bore 63-67
GM
5.4L / 327 OHV V8 16V Chev. 4.000" Bore 62-69
GM
5.4L / 327 OHV V8 16V Chev. 4.000" Bore 66-68
GM, CHEVROLET
5.6L / 340 OHV V8 16V Buick 3.750" Bore 66-67
GM
5.7L / 347 OHV V8 Small Block Stroker 4.000" Bore
FORD
5.7L / 350 OHV V8 16V Chev. Gen I Small Block 4.000" Bore
GM
5.7L / 350 OHV V8 16V Chev. 4.000" Bore 67-97
GM
5.7L / 350 OHV V8 16V Chev. 4.000" Bore 68-02
GM, CHEVROLET
5.7L / 350 OHV V8 16V Olds. Gas 4.057" Bore 68-80
GM
5.7L / 350 OHV V8 16V Pont. 3.875" Bore 68-77
GM
5.8L / 351 OHV V8 16V "G,H,M" Windsor 4.000" Bore 69-91
FORD
5.8L / 351 OHV V8 16V "G,H,M,R" Windsor 4.000" Bore 69-97
FORD
5.8L / 351 OHV V8 16V "H" Modified 4.000" Bore 75-79
FORD
5.8L / 351 OHV V8 16V "H,G" Modified 4.000" Bore 75-82
FORD
5.8L / 351 OHV V8 16V "H,M,Q,R" Cleveland 4.000" Bore 70-74
FORD
6.3L / 383 OHV V8 16V Chev. Small Block Stroker 4.000" Bore 67-02
GM
6.4L / 389 OHV V8 16V Pont. 4.063" Bore 59-66
GM
6.4L / 390 OHV V8 16V Cad. 4.000" Bore 59-63
GM
6.6L / 400 OHV V8 16V "S" 4.000" Bore 71-79
FORD
6.6L / 400 OHV V8 16V "S,Z" 4.000" Bore 77-82
FORD
6.6L / 400 OHV V8 16V Chev. 4.125" Bore 70-76
GM
6.6L / 400 OHV V8 16V Chev. 4.125" Bore 70-80
GM, CHEVROLET
6.6L / 400 OHV V8 16V Pont. 4.120" Bore 67-79
GM
6.9L / 421 OHV V8 16V Pont. 4.094" Bore 63-66
GM
7.0L / 425 OHV V8 16V "S,T" Cad. 4.082" Bore 77-79
GM
7.0L / 428 OHV V8 16V Pont. 4.120" Bore 67-69
GM
7.0L / 429 OHV V8 16V 4.360" Bore 68-73
FORD
7.0L / 429 OHV V8 16V 4.360" Bore 70-73
FORD
7.0L / 429 OHV V8 16V Cad. 4.129" Bore 64-67
GM
7.5L / 455 OHV V8 16V Olds. 4.125" Bore 68-76
GM
7.5L / 455 OHV V8 16V Pont. 4.150" Bore 70-76
GM
7.5L / 460 OHV V8 16V 4.360" Bore 68-78
FORD
7.5L / 460 OHV V8 16V 4.360" Bore 73-97
FORD
7.7L / 472 OHV V8 16V Cad. 4.300" Bore 68-74
GM
8.2L / 500 OHV V8 16V Cad. 4.300" Bore 70-76
GM
AM151C-PO | 2.5L / 151 OHV L4 8V Pont. 4.000" Bore 80-83
AMERICAN MOTORS
AM151T-PO | 2.5L / 151 OHV L4 8V Pont. 4.000" Bore 80-83
JEEP
AM173T-CH | 2.8L / 173 OHV V6 12V Chev. 3.504" Bore 84-86
JEEP
FO121TB | 2.0L / 121 SOHC L4 8V "C" 89.32mm Bore 83-88
FORD
FO140CA | 2.3L / 140 SOHC L4 8V Natural Asp. 3.780" Bore 74-93
FORD,
MERCURY
FO140CB | 2.3L / 140 SOHC L4 8V "T,W" Turbo 3.780" Bore 79-88
FORD,
MERKUR,
MERCURY
FO140CC | 2.3L / 140 OHV L4 8V "R,S,X" HSC 3.680" Bore 84-94
FORD,
MERCURY
FO140TA | 2.3L / 140 SOHC L4 8V "2,A,B" 3.780" Bore 77-97
FORD
FO153C | 2.5L / 153 OHV L4 8V "D" HSC 3.680" Bore 86-91
FORD,
MERCURY
FO221CA | 3.6L / 221 OHV V8 16V "L" 3.500" Bore 62-63
FORD,
MERCURY
FO240C | 3.9L / 240 OHV L6 12V "B,E,V" 4.000" Bore 65-72
FORD
FO240T | 3.9L / 240 OHV L6 12V "1,A,J" 4.000" Bore 65-74
FORD
FO255C | 4.2L / 255 OHV V8 16V "D" 3.680" Bore 80-82
FORD,
MERCURY
FO255T | 4.2L / 255 OHV V8 16V "D" 3.680" Bore 81-82
FORD
FO289C | 4.7L / 289 OHV V8 16V 4.000" Bore 63-68
FORD,
MERCURY
FO289T | 4.7L / 289 OHV V8 16V 4.000" Bore 66-67
FORD
FO300T | 4.9L / 300 OHV L6 12V 4.000" Bore 65-96
FORD
FO302C | 5.0L / 302 OHV V8 16V 4.000" Bore 68-95
FORD,
MERCURY,
LINCOLN
FO302T | 5.0L / 302 OHV V8 16V 4.000" Bore 68-01
FORD,
MERCURY
FO351CC | 5.8L / 351 OHV V8 16V "H,M,Q,R" Cleveland 4.000" Bore 70-74
FORD,
MERCURY
FO351MC | 5.8L / 351 OHV V8 16V "H" Modified 4.000" Bore 75-79
FORD,
MERCURY
FO351MT | 5.8L / 351 OHV V8 16V "H,G" Modified 4.000" Bore 75-82
FORD
FO351WC | 5.8L / 351 OHV V8 16V "G,H,M" Windsor 4.000" Bore 69-91
FORD,
MERCURY,
LINCOLN
FO351WT | 5.8L / 351 OHV V8 16V "G,H,M,R" Windsor 4.000" Bore 69-97
FORD
FO400C | 6.6L / 400 OHV V8 16V "S" 4.000" Bore 71-79
FORD,
LINCOLN,
MERCURY
FO400T | 6.6L / 400 OHV V8 16V "S,Z" 4.000" Bore 77-82
FORD
FO429C | 7.0L / 429 OHV V8 16V 4.360" Bore 68-73
FORD,
MERCURY,
LINCOLN
FO429T | 7.0L / 429 OHV V8 16V 4.360" Bore 70-73
FORD
FO460C | 7.5L / 460 OHV V8 16V 4.360" Bore 68-78
FORD,
LINCOLN,
MERCURY
FO460T | 7.5L / 460 OHV V8 16V 4.360" Bore 73-97
FORD
GM151C-PO | 2.5L / 151 OHV L4 8V "1,2,5,9,R,U,V" Pont. 4.000" Bore 77-92
BUICK,
CHEVROLET,
PONTIAC
GM151T-PO | 2.5L / 151 OHV L4 8V "A,E" Pont. 4.000" Bore 85-93
CHEVROLET,
GMC
GM153C-CH | 2.5L / 153 OHV L4 8V Chev. 3.875" Bore 62-70
CHEVROLET
GM153T-CH | 2.5L / 153 OHV L4 8V Chev. 3.875" Bore 63-65
CHEVROLET,
GMC
GM173C-CH | 2.8L / 173 OHV V6 12V Chev. 89.00mm Bore 80-89
BUICK,
CHEVROLET,
OLDSMOBILE,
PONTIAC,
CADILLAC
GM173T-CH | 2.8L / 173 OHV V6 12V "B,R" Chev. 89.00mm Bore 82-93
CHEVROLET,
GMC
GM181C-BU | 3.0L / 181 OHV V6 12V "E,L" Buick 3.800" Bore 82-88
BUICK,
OLDSMOBILE,
PONTIAC
GM189C-CH | 3.1L / 189 OHV V6 12V "J,M,T,W" Chev. 89.00mm Bore 88-05
BUICK,
CHEVROLET,
PONTIAC,
OLDSMOBILE
GM189T-CH | 3.1L / 189 OHV V6 12V "D" Chev. 89.00mm Bore 90-95
CHEVROLET,
PONTIAC,
OLDSMOBILE
GM194C-CH | 3.2L / 194 OHV L6 12V Chev. 3.563" Bore 62-67
CHEVROLET
GM194T-CH | 3.2L / 194 OHV L6 12V Chev. 3.563" Bore 63-66
CHEVROLET,
GMC
GM196C-BU | 3.2L / 196 OHV V6 12V "C" Buick 3.500" Bore 78-79
BUICK,
CHEVROLET
GM200C-CH | 3.3L / 200 OHV V6 12V "M" Chev. 3.500" Bore 78-79
CHEVROLET
GM200T-CH | 3.3L / 200 OHV V6 12V "M" Chev. 3.500" Bore 78-79
CHEVROLET,
GMC
GM204C-BU | 3.3L / 204 OHV V6 12V "N" Buick 93.98mm Bore 89-93
BUICK,
OLDSMOBILE,
PONTIAC
GM207CB-CH | 3.4L / 207 OHV V6 12V "E,S" Chev. 92.00mm Bore 93-05
CHEVROLET,
PONTIAC,
OLDSMOBILE
GM229C-CH | 3.8L / 229 OHV V6 12V "9,K" Chev. 3.736" Bore 80-84
CHEVROLET,
PONTIAC
GM229T-CH | 3.8L / 229 OHV V6 12V "9,K" Chev. 3.736" Bore 80-84
CHEVROLET,
GMC
GM230C-CH | 3.8L / 230 OHV L6 12V Chev. 3.875" Bore 63-70
CHEVROLET
GM230T-CH | 3.8L / 230 OHV L6 12V Chev. 3.875" Bore 63-69
CHEVROLET,
GMC
GM231CA-BU | 3.8L / 231 OHV V6 12V Buick 231 3.800" Bore 75-88
BUICK,
OLDSMOBILE,
PONTIAC,
CHEVROLET
GM231CB-BU | 3.8L / 231 OHV V6 12V "2,C,K,L" Buick 3800 96.50mm Bore 88-09
BUICK,
PONTIAC,
CHEVROLET,
OLDSMOBILE
GM231CC-BU | 3.8L / 231 OHV V6 12V "1,4" Buick 3800 S/C 96.50mm Bore 91-07
PONTIAC,
BUICK,
CHEVROLET,
OLDSMOBILE
GM231TA-BU | 3.8L / 231 OHV V6 12V "2,A" Buick 231 3.800" Bore 78-84
CHEVROLET,
GMC
GM231TB-BU | 3.8L / 231 OHV V6 12V "L" Buick 3800 96.50mm Bore 92-95
CHEVROLET,
OLDSMOBILE,
PONTIAC
GM250C-CH | 4.1L / 250 OHV L6 12V Chev. 3.875" Bore 65-79
CHEVROLET,
PONTIAC,
OLDSMOBILE,
BUICK
GM250T-CH | 4.1L / 250 OHV L6 12V Chev. 3.875" Bore 66-84
CHEVROLET,
GMC
GM252C-BU | 4.1L / 252 OHV V6 12V "4" Buick 3.965" Bore 80-84
CADILLAC,
BUICK,
OLDSMOBILE,
PONTIAC
GM260CA-OL | 4.3L / 260 OHV V8 16V "8,F" Olds. Gas 3.500" Bore 75-82
OLDSMOBILE,
BUICK,
PONTIAC
GM262CA-CH | 4.3L / 262 OHV V8 16V "G" Chev. 3.671" Bore 75-76
CHEVROLET
GM262CB-CH | 4.3L / 262 OHV V6 12V "Z" Chev. 4.000" Bore 85-93
CHEVROLET,
PONTIAC
GM262TB-CH | 4.3L / 262 OHV V6 12V Vortec Chev. 4.000" Bore 85-16
CHEVROLET,
GMC,
WORKHORSE,
OLDSMOBILE
GM265CA-CH | 4.3L / 265 OHV V8 16V Chev. 3.750" Bore 55-57
CHEVROLET
GM265CC-PO | 4.3L / 265 OHV V8 16V "S" Pont. 3.750" Bore 80-81
BUICK,
PONTIAC
GM265TA-CH | 4.3L / 265 OHV V8 16V Chev. 3.750" Bore 55-57
CHEVROLET
GM267C-CH | 4.4L / 267 OHV V8 16V "J" Chev. 3.500" Bore 79-82
CHEVROLET
GM267T-CH | 4.4L / 267 OHV V8 16V "J" Chev. 3.500" Bore 79-82
CHEVROLET,
GMC
GM283C-CH | 4.6L / 283 OHV V8 16V Chev. 3.875" Bore 57-67
CHEVROLET,
PONTIAC
GM283T-CH | 4.6L / 283 OHV V8 16V Chev. 3.875" Bore 57-67
CHEVROLET,
GMC
GM292T-CH | 4.8L / 292 OHV L6 12V Chev. 3.875" Bore 63-89
CHEVROLET,
GMC
GM300C-BU | 4.9L / 300 OHV V8 16V Buick 3.750" Bore 64-67
BUICK
GM301C-PO | 4.9L / 301 OHV V8 16V "T,W,Y" Pont. 4.000" Bore 77-81
PONTIAC,
BUICK,
OLDSMOBILE
GM302C-CH | 4.9L / 302 OHV V8 16V Chev 4.000" Bore 67-69
CHEVROLET
GM305C-CH | 5.0L / 305 OHV V8 16V Chev. 3.736" Bore 76-93
CHEVROLET,
PONTIAC,
CADILLAC,
OLDSMOBILE,
BUICK
GM305T-CH | 5.0L / 305 OHV V8 16V Chev. 3.736" Bore 76-02
CHEVROLET,
GMC
GM307C-CH | 5.0L / 307 OHV V8 16V Chev. 3.875" Bore 68-73
CHEVROLET,
PONTIAC
GM307C-OL | 5.0L / 307 OHV V8 16V "Y,9" Olds. 3.800" Bore 80-90
BUICK,
CADILLAC,
OLDSMOBILE,
CHEVROLET,
PONTIAC
GM307T-CH | 5.0L / 307 OHV V8 16V Chev. 3.875" Bore 68-73
CHEVROLET,
GMC
GM326C-PO | 5.3L / 326 OHV V8 16V Pont. 3.719" Bore 63-67
PONTIAC
GM327C-CH | 5.4L / 327 OHV V8 16V Chev. 4.000" Bore 62-69
CHEVROLET,
PONTIAC
GM327T-CH | 5.4L / 327 OHV V8 16V Chev. 4.000" Bore 66-68
CHEVROLET,
GMC
GM340C-BU | 5.6L / 340 OHV V8 16V Buick 3.750" Bore 66-67
BUICK
GM350CA-CH | 5.7L / 350 OHV V8 16V Chev. 4.000" Bore 67-97
BUICK,
CADILLAC,
CHEVROLET,
OLDSMOBILE,
PONTIAC
GM350CE-OL | 5.7L / 350 OHV V8 16V Olds. Gas 4.057" Bore 68-80
BUICK,
CADILLAC,
OLDSMOBILE
GM350CE-PO | 5.7L / 350 OHV V8 16V Pont. 3.875" Bore 68-77
BUICK,
PONTIAC
GM350T-CH | 5.7L / 350 OHV V8 16V Chev. 4.000" Bore 68-02
CHEVROLET,
GMC,
CADILLAC
GM389C-PO | 6.4L / 389 OHV V8 16V Pont. 4.063" Bore 59-66
PONTIAC
GM390C-CA | 6.4L / 390 OHV V8 16V Cad. 4.000" Bore 59-63
CADILLAC
GM400C-CH | 6.6L / 400 OHV V8 16V Chev. 4.125" Bore 70-76
CHEVROLET,
PONTIAC,
OLDSMOBILE
GM400C-PO | 6.6L / 400 OHV V8 16V Pont. 4.120" Bore 67-79
PONTIAC
GM400T-CH | 6.6L / 400 OHV V8 16V Chev. 4.125" Bore 70-80
CHEVROLET,
GMC
GM421C-PO | 6.9L / 421 OHV V8 16V Pont. 4.094" Bore 63-66
PONTIAC
GM425C-CA | 7.0L / 425 OHV V8 16V "S,T" Cad. 4.082" Bore 77-79
CADILLAC
GM428C-PO | 7.0L / 428 OHV V8 16V Pont. 4.120" Bore 67-69
PONTIAC
GM429C-CA | 7.0L / 429 OHV V8 16V Cad. 4.129" Bore 64-67
CADILLAC
GM455C-OL | 7.5L / 455 OHV V8 16V Olds. 4.125" Bore 68-76
OLDSMOBILE
GM455C-PO | 7.5L / 455 OHV V8 16V Pont. 4.150" Bore 70-76
PONTIAC
GM472C-CA | 7.7L / 472 OHV V8 16V Cad. 4.300" Bore 68-74
CADILLAC
GM500C-CA | 8.2L / 500 OHV V8 16V Cad. 4.300" Bore 70-76
CADILLAC
IS2835T/GM | 2.8L / 2835 OHV V6 12V "R" GM 89.00mm Bore 89-91
ISUZU
IS3137T/GM | 3.1L / 3137 OHV V6 12V "Z" GM 89.00mm Bore 91-94
ISUZU
