Chrome Moly Hard Valve Seats

RPM - RON'S PRECISION MACHINE, INC.
69 E. 580 N.
Santaquin, Utah 84655
1-801-754-5338 or Toll free 1-866-700-5877
e-mail

 

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               Order Form

Call toll free to purchase at 1-866-700-5877 or e-mail or use the Order Form for questions and to check stock.
We can supply SBI valve seats in most sizes. Most prices are in the $4.60 each range. These seats are 35-40 RC hardness suitable for todays unleaded gasoline and other applications for cylinder heads.

Part number with T at the end = tapered inside diameter seat.

Part#      I.D.    O.D.   Depth  Seat angle

SB1187-1 1.000 1-3/16 3/16 45
SB1187-2 7/8 1-3/16 1/4 45
SB1187-4 1-5/16 1-3/16 3/16 45
SB1187-5 1-5/16 1-3/16 1/4 45
SB1187-6 1.000 1-3/16 1/4 45
SB1187-7 1.000 1-3/16 7/32 45
SB1187-12 11/16 1-3/16 7/16 45
SB1187-51 0.905 1-3/16 0.2570 45
SB1187-52 0.934T 0.995 13/16 0.2570 45
SB1187-53 0.935 1-3/16 0.2350 45
SB1187-54 0.880 1-3/16 0.2800 45
SB1221E-2 23mm 31mm 8.5mm 45
SB1221E-2N 23mm 31mm 8.5mm 45
SB1250-0 1.000 1-1/4 3/8 45
SB1250-1 1.000 1-1/4 7/32 45
SB1250-2 1.000 1-1/4 3/16 45
SB1250-3 1.000 1-1/4 1/4 45
SB1250-4 7/8 1-1/4 3/16 45
SB1250-12 1.000 1-1/4 5/16 45
SB1250-13 3/4 1-1/4 7/16 45
SB1250-50 0.965T 1.060 1-1/4 1/4 45
SB1250-52 0.910T 1.052 1-1/4 0.2850 45
SB1250-53 1.024 1-1/4 0.2570 45

Part#      I.D.    O.D.   Depth  Seat angle   Oversizes available

SB1250-54 1.010T 1.056 1-1/4 0.2570 45
SB1250-56 0.905T 1.005 1-1/4 0.2300 45
SB1250-58 0.955 1-1/4 0.2550 45
SB1250-59 0.982 1-1/4 0.3290 45
SB1250-60 1.023T 1.110 11/4 0.2730 45
SB1250-61 0.976 1-1/4 0.1800 45
SB1250-62 1.000 1-1/4 0.3050 45
SB1250-63 0.930 1-1/4 0.3250 45
SB1250-64 0.970 1-1/4 0.2700 45
SB1250-65 1.030 1-1/4 0.2150 45
SB1260E-1 24mm 32mm 8.5mm 45
SB1260E-1N 24mm 32mm 8.5mm 45
SB1262E-1 0.975T 1.045 1.262 1/4 30 005,010,020,030,040,062 $5.67 each.
SB1262E-1 +005 0.975T 1.045 1.267 1/4 30
SB1262E-1 +010 0.975T 1.045 1.272 1/4 30
SB1262E-1 +020 0.975T 1.045 1.282 1/4 30
SB1262E-1 +030 0.975T 1.045 1.292 1/4 30
SB1262E-1 +040 0.975T 1.045 1.302 1/4 30
SB1262E-1 +062 0.975T 1.045 1.324 1/4 30
SB1299E-1 25mm 33mm 8.5mm 45
SB1299E-1N 25mm 33mm 8.5mm 45
SB1312-0 1-1/16 1-5/16 3/8 45
SB1312-1 1-1/16 1-5/16 3/16 45
SB1312-2 1.000 1-5/16 3/16 45
SB1312-3 1.000 1-5/16 7/32 45
SB1312-4 1.000 1-5/16 1/4 45
SB1312-5 1.000 1-5/16 5/16 45
SB1312-6 1-1/16 1-5/16 7/32 45
SB1312-7 1-1/8 1-5/16 3/16 45
SB1312-9 1-1/16 1-5/16 1/4 45
SB1312-10 1-1/16 1-5/16 5/16 45
SB1312-11 1-3/32 1-5/16 7/32 45
SB1312-13 1-1/8 1-5/16 7/32 45
SB1312-16 1-3/16 1-5/16 7/16 45
SB1312-50 1.086T 1.153 1-5/16 0.3050 45
SB1312-52 1.060T 1.087 1-5/16 0.2400 45
SB1312-53 0.980T 1.106 1-5/16 0.2930 45
SB1312-56 1.086 1-5/16 0.3050 45
SB1312-57 1.060 1-5/16 0.2800 45
SB1312-59 1.044 1-5/16 0.2730 45
SB1312-62 1.065T 1.120 1-5/16 0.2850 45
SB1312-63 0.965T 1.075 1-5/16 0.2350 45
SB1312-64 1.045 1-5/16 0.3160 45
SB1312-66 1.020T 1.127 1-5/16 0.2580 45
SB1312-67 1.042 1-5/16 0.2380 45
SB1312-68 0.975 1-5/16 0.2800 45
SB1339E-2 26mm 34mm 8.5mm 45
SB1339E-2N 26mm 34mm 8.5mm 45
SB1348E-1N 1.087 1.348 0.2000 45 010
SB1348E-1N +010 1.087 1.358 0.2000 45
SB1375-0 1-1/8 1-3/8 3/8 45
SB1375-1 1-1/8 1-3/8 7/32 45 030
SB1375-1 +030 1-1/8 1.410 7/32 45
SB1375-1N 1-1/8 1-3/8 7/32 45
SB1375-2 1-1/8 1-3/8 1/4 45
SB1375-3 1-1/16 1-3/8 3/16 45
SB1375-3N 1-1/16 1-3/8 3/16 45
SB1375-4 1-1/8 1-3/8 3/16 45
SB1375-4N 1-1/8 1-3/8 3/16 45
SB1375-5 1-1/8 1-3/8 17/64 45

Part#      I.D.    O.D.   Depth  Seat angle

SB1375-6 1-1/16 1-3/8 7/32 45
SB1375-7 1-1/16 1-3/8 1/4 45
SB1375-8 1.000 1-3/8 3/16 45
SB1375-10 15/16 1-3/8 5/16 45
SB1375-18 1-1/16 1-3/8 5/16 45
SB1375-22 1-3/16 1-3/8 7/32 45
SB1375-25 1-3/32 1-3/8 0.2030 45
SB1375-26 1.000 1-3/8 9/32 45
SB1375-27 7/8 1-3/8 7/16 45
SB1375-50 1.109T 1.218 1-3/8 0.2550 45
SB1375-51 1.060T 1.150 1-3/8 0.2800 45
SB1375-52 1.000T 1.109 1-3/8 0.4100 45
SB1375-54 1.022T 1.085 1-3/8 0.2300 45
SB1375-55 1.120 1-3/8 0.3250 45
SB1375-56 1.102 1-3/8 0.2600 45
SB1375-60 1.107T 1.217 1-3/8 0.2370 45
SB1375-61 1.130T 1.272 1-3/8 0.3040 45
SB1375-62 1.100T 1.210 1-3/8 0.3000 45
SB1375-63 1.057T 1.110 1-3/8 0.2400 45
SB1375-64 1.000 1-3/8 0.2800 45
SB1375-65 1.165 1-3/8 0.3100 45
SB1375E-1 1.100 1.140 1.3750 0.2270 30 010
SB1375E-1 +010 1.100 1.140 1.3850 0.2270 45
SB1375E-2N 1.100 1.140 1.375 0.227 45 010
SB1375E-2N +010 1.100 1.140 1.385 0.227 45
SB1378E-1 26mm 35mm 9mm 45
SB1378E-1N 26mm 35mm 9mm 45
SB1417E-1 27mm 36mm 9mm 45
SB1417E-1N 27mm 36mm 9mm 45
SB1437-1 1-1/4 1-7/16 7/32 45
SB1437-1N 1-1/4 1-7/16 7/32 45
SB1437-2 1-7/32 1-7/16 7/32 45
SB1437-2N 1-7/32 1-7/16 7/32 45
SB1437-2PM 1-7/32 1-7/16 7/32 45
SB1437-3 13/16 1-7/16 7/32 45
SB1437-3N 13/16 1-7/16 7/32 45
SB1437-3PM 13/16 1-7/16 7/32 45
SB1437-4 1-1/8 1-7/16 7/32 45
SB1437-5 13/16 1-7/16 1/4 45
SB1437-6 1-1/8 1-7/16 5/16 45
SB1437-8 1-1/8 1-7/16 1/4 45
SB1437-9 1-1/16 1-7/16 3/16 45
SB1437-10 1-1/8 1-7/16 3/16 45
SB1437-14 1-7/32 1-7/16 1/4 45
SB1437-15 1.000 1-7/16 3/16 45
SB1437-17 1.000 1-7/16 1/4 45
SB1437-18 1.000 1-7/16 5/16 45
SB1437-22 1-1/16 1-7/16 5/16 45
SB1437-24 13/16 1-7/16 3/16 45
SB1437-25 13/16 1-7/16 5/16 45
SB1437-28 1-1/4 1-7/16 3/16 45
SB1437-30 1-1/4 1-7/16 5/16 45
SB1437-32 1-5/16 1-7/16 7/16 45
SB1437-50 1.140T 1.241 1-7/16 0.3050 45
SB1437-51 1.130T 1.311 1-7/16 0.2500 45
SB1437-53 1.090T 1.101 1-7/16 0.3540 45
SB1437-56 1.110T 1.215 1-7/16 0.3150 45
SB1437-58 1.095T 1.262 1-7/16 0.2370 45
SB1437-59 1.180T 1.245 1-7/16 0.3050 45
SB1437-60 1.125 1-7/16 0.2570 45

Part#      I.D.    O.D.   Depth  Seat angle    Oversizes available

SB1437-61 1.162 1-7/16 0.3100 45
SB1437-62 1.200 1-7/16 0.2970 45
SB1437-63 1.181T 1.285 17/16 0.2800 45
SB1437-65 1.105 1-7/16 0.3220 45
SB1437-66 1.120 1-7/16 0.3000 45
SB1437-67 1.180T 1.270 1-7/16 0.2550 45
SB1437-68 1.135T 1.250 1-7/16 0.3160 45
SB1437-69 1.140T 1.228 1-7/16 0.2370 45
SB1437-72 1.150T 1.243 1-7/16 0.2570 45
SB1437-73 1.142T 1.265 1-7/16 0.3360 45
SB1437-74 1.162 1-7/16 0.2300 45
SB1437-75 1.175 1-7/16 0.2600 45
SB1441E-1 1-13/64T 1.245 1.441 0.2150 30
SB1442E-1 1-9/64T 1.200 1.442 1/4 30 005,010,020,030,040,063
SB1442E-1 +005 1-9/64T 1.200 1.447 1/4 30
SB1442E-1 +010 1-9/64T 1.200 1.452 1/4 30
SB1442E-1 +020 1-9/64T 1.200 1.462 1/4 30
SB1442E-1 +030 1-9/64T 1.200 1.472 1/4 30
SB1442E-1 +040 1-9/64T 1.200 1.482 1/4 30
SB1442E-1 +063 1-9/64T 1.200 1.505 1/4 30
SB1442E-2 17/32 1.442 11/32 45
SB1457E-2 1.102 37mm 0.3540 45
SB1457E-2N 1.102 37mm 0.3540 45
SB1460E-2N 1.236 1.4605 0.2360 45
SB1480E-2 1.288T 1.299 1.480 1/4 45
SB1486E-1 1.270 1.486 0.2900 30
SB1496E-1 29mm 38mm 9mm 45
SB1496E-1N 29mm 38mm 9mm 45
SB1500-0 1-1/4 1-1/2 3/8 45
SB1500-1 1-1/4 1-1/2 7/32 45
SB1500-1N 1-1/4 1-1/2 7/32 45
SB1500-1PM 1-1/4 1-1/2 7/32 45
SB1500-2 13/16 1-1/2 7/32 45
SB1500-3 11/4 1-1/2 1/4 45 003
SB1500-3 +003 1-1/4 1.508 1/4 45
SB1500-4 17/32T 1-11/32 11/2 7/32 45
SB1500-5 1-1/8 1-1/2 3/16 45
SB1500-6 13/16 1-1/2 1/4 45
SB1500-8 1-1/8 1-1/2 7/32 45
SB1500-9 1-1/8 1-1/2 5/16 45
SB1500-10 13/16 1-1/2 5/16 45
SB1500-11 17/32 1-1/2 1/4 45
SB1500-12 1-1/4 1-1/2 5/16 45
SB1500-13 1-1/4 1-1/2 3/16 45
SB1500-19 1.000 1-1/2 3/8 45
SB1500-23 1-1/16 11/2 5/16 45
SB1500-26 13/16 1-1/2 3/8 45
SB1500-28 1-1/4 1-1/2 9/32 45
SB1500-29 1-5/16 1-1/2 3/16 45
SB1500-30 1-5/16 1-1/2 7/32 45
SB1500-33 1.000 1-1/2 7/16 45
SB1500-50 1.203T 1.266 1-1/2 0.2800 45
SB1500-50N 1.203T 1.266 1-1/2 0.2800 45
SB1500-53 1.180T 1.241 1-1/2 0.3070 45
SB1500-54 1.180T 1.325 1-1/2 0.3070 45
SB1500-56 1.275T 1.318 1-1/2 0.2500 45
SB1500-57 1.100T 1.213 1-1/2 0.3160 45
SB1500-58 1.200T 1.220 1-1/2 0.3150 45
SB1500-61 1.220T 1.330 1-1/2 0.3150 45
SB1500-62 1.220T 1.284 1-1/2 0.3100 45

Part number with T at the end = tapered inside diameter seat.

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