2021-22 Engine Catalog

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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