VALVE SPRINGS
Part No.
Description
O.D.
I.D.
Seat Pressure Qty.
1.500"-1.580" O.D. - Cont. Manley MAN22431-16
Dual Spring w/Damper, Pro Series,Chrome Silicon
1.550" 1.560" 1.580" 1.550" 1.500" 1.500" 1.500" 1.522" 1.550" 1.550" 1.539" 1.539" 1.550" 1.550" 1.545" 1.539" 1.550" 1.500" 1.500" 1.514" 1.514" 1.575" 1.575" 1.574" 1.550" 1.550" 1.500" 1.500" 1.500" 1.500" 1.522" 1.522" 1.536" 1.550" 1.510" 1.550" 1.550" 1.564" 1.564" 1.574" 1.574" 1.539" 1.500" 1.540" 1.540"
.725" .812" .832" .810" .719" .719" .719" .719" .788" .706" .731" .720" .812" .812" .757" .731" .788" .726" .726" .726" .726" .790" .720" .826" .812" .726" .726" .726" .726" .726" .726" .726" .728" .740" .790" .700" .706" .744" .826" .744" .826" .731" .996" .754" .754"
225 @ 1.950" 16 260 @ 2.000" 16 235 @ 1.950" 16 250 @ 2.025" 16 438 @ 2.175" 16 316 @ 2.100" 16 395 @ 2.150" 16 400 @ 2.250" 16 250 @ 2.000" 16 275 @ 2.000" 16 200 @ 1.950" 16 220 @ 2.050" 16 240 @ 1.900" 16 240 @ 2.000" 16 175 @ 1.900" 16 200 @ 2.000" 16 250 @ 2.000" 16 350 @ 2.100" 16 275 @ 2.050" 16 425 @ 2.200" 16 350 @ 2.100" 16 250 @ 2.030" 16 270 @ 2.050" 16 250 @ 2.050" 16 240 @ 1.900" 16 425 @ 2.300" 16 420 @ 2.175" 16 440 @ 2.200" 16 300 @ 2.100" 16 375 @ 2.150" 16 375 @ 2.200" 16 400 @ 2.250" 16 425 @ 2.300" 16 555 @ 2.350" 16 240 @ 2.030" 16 194 @ 1.950" 16 275 @ 2.000" 16 250 @ 2.000" 16 245 @ 2.000" 16 265 @ 2.000" 16 260 @ 2.000" 16 200 @ 2.000" 16 98 @ 1.880" 16 145 @ 1.900" 16 144 @ 1.900" 16
MAN221442-16 MAN221443P-16 MAN221452SF-16 MAN221455-16 MAN221456-16 MAN221457-16 MAN221460-16 PACPAC-1225 PACPAC-1226 PACPAC-1227 PACPAC-1239 PACPAC-1243 PACPAC-1245 PACPAC-1294 PACPAC-1295X PACPAC-1297 PACPAC-1325 PACPAC-1329 PACPAC-1330 PACPAC-1331 PACPAC-1332 PACPAC-1340 PACPAC-1341 PACPAC-1342 PACPAC-1343 PACPAC-1354 PACPAC-1355 PACPAC-1355H PACPAC-1356 PACPAC-1357 PACPAC-1359 PACPAC-1360 PACPAC-1361 PACPAC-1370 PACPAC-1541 PACPAC-1940 PACPAC-1326 PACPAC-1385 PACPAC-1386
Dual Spring, NexTek Series
Dual Spring w/Damper, NexTek Series, Fully Polished, Solid Roller Dual Spring, NexTek Series, Super Finished, Solid Roller
Dual Spring, NexTek, Lightweight Dual Spring, NexTek, Lightweight Dual Spring, NexTek, Lightweight Dual Spring, NexTek, Lightweight
PAC Racing
Dual Spring Dual Spring
Dual Spring w/Damper Dual Spring w/Damper
Dual Spring Dual Spring
Dual Spring w/Damper
Single Beehive Spring, RPM Series
1.589"/1.185" 1.135"/.731" 175 @ 2.000" 16
Dual Spring w/Damper
Dual Spring Dual Spring Dual Spring Dual Spring Dual Spring Dual Spring Dual Spring Dual Spring Dual Spring Dual Spring Dual Spring Dual Spring Dual Spring Dual Spring
Dual Spring w/Damper
Dual Spring, Circle Track Dual Spring, Drag Race
Dual Spring, Drag Race Dual Spring, Circle Track
Dual Spring w/Damper, HR-Series
Dual Spring w/Damper Dual Spring w/Damper
Dual Spring
PACPAC-1395 PACPAC-1396 PACPAC-1509 PACPAC-1900 PACPAC-1901 PACPAC-1924
Dual Spring w/Damper
Dual Spring Dual Spring Single Spring Dual Spring Dual Spring
1.580"-1.600" O.D. Comp Cams COM26055-16 1.600"-1.677" O.D. Crane Cams CRN99880-16 COM26095-16 Howard Cams HRC98738-A Isky Racing Cams ISK9998-RAD
Single Beehive Single Beehive
1.585"
.731"
150 @ 1.925" 16
1.185"/1.589" .731"/1.135" 150 @ 2.000" 16
Dual Spring w/Damper
1.625"
.769"
244 @ 2.000" 16
Dual Spring
1.625"
.860"
250 @ 2.000" 16
Dual Spring w/Damper, RAD Tool Room Dual Spring w/Damper, Tool Room
1.600" 1.600" 1.600" 1.625" 1.625" 1.625" 1.625"
.740" .745" .745" .770" .770" .770" .770"
250 @ 2.050" 16 275 @ 2.050" 16 250 @ 2.000" 16 240 @ 2.000" 16 250 @ 2.020" 16 250 @ 2.020" 16 265 @ 2.120" 16
ISK9996-RADML ISK9999-RAD
Dual Spring w/Damper
ISK9685 ISK9945
Dual Spring w/Damper, Endurance
Dual Spring w/Damper Dual Spring w/Damper Dual Spring w/Damper
ISK9945-RAD ISK9955-RAD
543 2021-22 ENGINE BUILDER CATALOG 0- 1
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