Page 296 - 2018 Racecar Engineering Open Wheel Parts and Accessories Catalog

Circle Track Valve Springs
PAC offers three series of dual spring valve spring assemblies for circle track racing applications. Economical, 1200 series are standard
HP processed with good fatigue life. 1300 series Nano Peen springs have surface enhancements and full chamfering for extreme reliability.
Premium 1500 series are polished, gold colored Nano Peen springs engineered for extreme engine speeds and radical camshaft profiles.
Sold in sets of 16.
Outer Outer Middle Inner Installed Open Spring Coil Max.
Part No. OD ID OD ID Height Load Rate Bind Lift
1200 Series
PACPAC-1227 1.539" 1.125" Damper .731" 200 @ 1.950" 550 @ 1.250" 500 1.130" .700"
PACPAC-1239 1.550" 1.126" Damper .720" 220 @ 2.050" 625 @ 1.300" 540 1.180" .800"
PACPAC-1243 1.550" 1.136" — .812" 240 @ 1.900" 625 @ 1.200" 550 1.100" .700"
1300 Series
PACPAC-1342 1.574" 1.100" — .826" 250 @ 2.050" 655 @ 1.250" 506 1.200" .800"
PACPAC-1371 1.374" 1.100" — .716" 150 @ 1.950" 455 @ 1.250" 436 1.190" .700"
PACPAC-1385 1.564" 1.150" Damper .744" 250 @ 2.000" 670 @ 1.200" 525 1.140" .800"
PACPAC-1395 1.574" 1.150" Damper .744" 265 @ 2.000" 705 @ 1.200" 550 1.150" .800"
1500 Series
PACPAC-1572 1.510" 1.086" — .774" 180 @ 1.980" 650 @ 1.180" 588 1.110" .800"
RPM Series Crate Motor
“Cheater” Valve Springs 2-1/2" Coil-Over Springs
Designed specifically for popular GM “602” and “604” PAC Racing Springs demands the highest technology
crate motors, RPM Series valve springs offer increased and best performance, while working diligently, ensuring
engine RPMs when compared to stock GM crate motor that the designs, materials and processing withstand all
springs. Sold in sets of 16.
performance requirements.
Installed Open Spring Coil Max. Rate 10" Tall 12" Tall 14" Tall
Part No. Description OD ID Height Load Rate Bind Lift 80 — PACPAC-12X2.5X80 PACPAC-14X2.5X80
PACPAC-1210X “602” Spring 1.245" .891" 87 @ 1.700" 212 @ 1.270" 291 1.128" .450" 90 — PACPAC-12X2.5X90 PACPAC-14X2.5X90
PACPAC-1212X “604” Spring 1.355" .910" 125 @ 1.750" 315 @ 1.250" 380 1.180" .550"
100 — PACPAC-12X2.5X100 PACPAC-14X2.5X100
110 — PACPAC-12X2.5X110 PACPAC-14X2.5X110
Valve Spring Retainers 120 — PACPAC-12X2.5X120 PACPAC-14X2.5X120
Choose from rigid, 600 Series Pacaloy tool steel D 125 PACPAC-10X2.5X125 PACPAC-12X2.5X125 PACPAC-14X2.5X125
C 130 — PACPAC-12X2.5X130 PACPAC-14X2.5X130
or 500 Series Ti-17 titanium. Sold in sets of 16. B A
140 — PACPAC-12X2.5X140 PACPAC-14X2.5X140
Dimensions Lock Gram 150 PACPAC-10X2.5X150 PACPAC-12X2.5X150 PACPAC-14X2.5X150
Part No. A B C D Angle Weight
165 — PACPAC-12X2.5X165 PACPAC-14X2.5X165
600 Series Pacaloy Tool Steel 175 PACPAC-10X2.5X175 PACPAC-12X2.5X175 PACPAC-14X2.5X175
PACPAC-R614 1.450" 1.140" .735" N/A 10° 15.9 185 — PACPAC-12X2.5X185 PACPAC-14X2.5X185
500 Series Ti-17 Titanium 200 PACPAC-10X2.5X200 PACPAC-12X2.5X200 PACPAC-14X2.5X200
PACPAC-R505 1.400" 1.090" .780" N/A 10° 14.8 225 PACPAC-10X2.5X225 PACPAC-12X2.5X225 PACPAC-14X2.5X225
PACPAC-R514 1.475" 1.140" .735" N/A 10° 14.8 250 PACPAC-10X2.5X250 PACPAC-12X2.5X250 PACPAC-14X2.5X250
PACPAC-R517 1.325" .990" .700" N/A 10° 11.8 275 PACPAC-10X2.5X275 PACPAC-12X2.5X275 PACPAC-14X2.5X275
PACPAC-R540 1.400" 1.080" .770" N/A 8° 13.6 300 PACPAC-10X2.5X300 PACPAC-12X2.5X300 PACPAC-14X2.5X300
325 PACPAC-10X2.5X325 PACPAC-12X2.5X325 PACPAC-14X2.5X325
Chrome Moly Spring Seats 350 PACPAC-10X2.5X350 PACPAC-12X2.5X350 PACPAC-14X2.5X350
375 PACPAC-10X2.5X375 PACPAC-12X2.5X375 PACPAC-14X2.5X375
Dimensions 400 PACPAC-10X2.5X400 PACPAC-12X2.5X400 PACPAC-14X2.5X400
Part No. Thickness A B C 425 PACPAC-10X2.5X425 PACPAC-12X2.5X425 PACPAC-14X2.5X425
A
PACPAC-S103 .060" 1.550" .770" .575" B C 450 PACPAC-10X2.5X450 PACPAC-12X2.5X450 PACPAC-14X2.5X450
PACPAC-S104 .060" 1.550" .770" .635" 475 — PACPAC-12X2.5X475 PACPAC-14X2.5X475
PACPAC-S110 .060" 1.500" .715" .570" 500 PACPAC-10X2.5X500 PACPAC-12X2.5X500 PACPAC-14X2.5X500
PACPAC-S126 .060" 1.500" .715" .630" 525 — PACPAC-12X2.5X525 PACPAC-14X2.5X525
550 PACPAC-10X2.5X550 PACPAC-12X2.5X550 PACPAC-14X2.5X550
575 — PACPAC-12X2.5X575 PACPAC-14X2.5X575
Chrome Moly Spring Cups 600 PACPAC-10X2.5X600 PACPAC-12X2.5X600 PACPAC-14X2.5X600
Dimensions A 625 — PACPAC-12X2.5X625 PACPAC-14X2.5X625
B
Part No. Thickness A B C C 650 PACPAC-10X2.5X650 PACPAC-12X2.5X650 PACPAC-14X2.5X650
PACPAC-C202 .060" 1.625" 1.525" .640" 675 — PACPAC-12X2.5X675 PACPAC-14X2.5X675
PACPAC-C204 .060" 1.670" 1.575" .640" 700 PACPAC-10X2.5X700 PACPAC-12X2.5X700 PACPAC-14X2.5X700
750 PACPAC-10X2.5X750 PACPAC-12X2.5X750 PACPAC-14X2.5X750
800 PACPAC-10X2.5X800 PACPAC-12X2.5X800 —
Spring Installed Height Gauge 1000 — PACPAC-12X2.5X1000 —
PACPAC-T902
Measure valve spring heights quickly, accurately Titanium Valve Locks PACPAC-L8005
and effectively. Standard model is made from
Lightweight, 10° titanium valve locks are designed for
durable, stainless steel and includes fine threads use with 11/32" valves that use traditional, square keeper
for increased accuracy. Measures 1.800"-2.600"
grooves. Locks provide a standard installed height. Set
installed heights. of 16 pair.
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