Page 555 - 2022-23 Auto Performance Drag Racing

2022-23
RPM Series Springs
DRAG RACING
RPM Series springs, signified by an "X" suffix in the part number, include an innovative manufacturing process that delivers increased performance. Suitable for street or strip use, springs are offered in dual versions for GM LS or ovate beehive design for a variety of applications. Sold in sets of 16.
Dual Springs for GM LS
Outer O.D. 1.290" 1.304" 1.324"
Outer I.D. .950" .950 .950"
Inner I.D. .694" .680" .694"
Lg. End I.D. .906" .698" .885" 1.000" .742" .720" .900" .698" .990" .849"
Installed Height
145 @ 1.800" 155 @ 1.800" 160 @ 1.800"
Open
Load
385 @ 1.150" 436 @ 1.150" 482 @ 1.100"
Part No.
PACPAC-1204X PACPAC-1207X PACPAC-1208X
Damper
No No No
Lg. End O.D. 1.290" 1.061" 1.307" 1.445" 1.105" 1.083" 1.345" 1.021" 1.445" 1.031"
Coil Bind 1.000" 1.000" 1.000"
Max. Lift .700" .700" .750"
Beehive Single Springs
Spring Rate 369 433 460
Open
Load
370 @ 1.175" 285 @ 1.080" 358 @ 1.175" 400 @ 1.250" 262 @ .970" 280 @ 1.025" 450 @ 1.400" 218 @ 1.050" 440 @ 1.300" 215 @ 1.260"
Part No.
PACPAC-1211X PACPAC-1214X PACPAC-1219X PACPAC-1220X PACPAC-1223X PACPAC-1231X PACPAC-1232X PACPAC-1234X PACPAC-1255X PACPAC-1281X
Application
GM LS
Ford 4.6L 2V GM LS
BB Chevy Ford 4.6L 4V Ford GT500/CJ Dodge Hemi 6.4L Ford 5.0L Coyote Universal Ford 5.0L Coyote
Max. Lift .625" .600" .625" .650" .500"
Sm. End I.D. .650" .636" .650" .650" .943" .636" .650" .525" .731" .527"
Installed Height
130 @ 1.800" 120 @ 1.600" 145 @ 1.800" 160 @ 1.900" 100 @ 1.470" 120 @ 1.575" 175 @ 2.050" 92 @ 1.575" 175 @ 1.950" 80 @ 1.811"
Spring Coil
Rate Bind
385 1.100"
285 1.013"
340 1.100"
370 1.210"
324 .900"
291 .952" .550" 423 1.346" .650" 240 .941" .575" 408 1.220" .700" 245 1.208" .550"
*Drop-in valve spring for Ford Coyote 5.0L.
Complete Cylinder Head Valve Spring Kits for GM LS NEW!
All-in-one kits include all of the necessary components to upgrade the valve springs on popular GM LS applications. Each kit includes (16) valve springs, (16) chrome moly or tita- nium valve spring retainers, (16 pair) valve spring keepers, (16) economy or premium valve seals, and (16) valve spring seats.
Part No. PACPAC-KS23 PACPAC-KS33
Description
Kit with PACPAC-1204X Dual Valve Springs, Chrome Moly Retainers, & Economy Seals Kit with PACPAC-1208X Dual Valve Springs, Titanium Retainers, & Premium Seals
NOTE: Please refer to Dual Springs for GM LS chart above for valve spring specifications.
Spring Installed Height Gauge
PACPAC-T902
Made of durable stainless steel. Standard Model, 1.800"-2.600" installed heights.
Valve Spring Shims
Required when setting up valve springs to obtain the desired seat
Valve Spring Retainers
Part No. A
Dimensions
Lock Gram Angle Weight
10° 9.9 7° 10.3 7° 19.3 10° 26.3 7° 6.4 7° 17.0 7° 5.5 8° 17.0 8° 20.0 10° 29.0 10° 28.0
10° 11.5
10° 16.5 10° 14.8 10° 13.6 10° 12.9 10° 17.3
300 Series Chrome Moly Steel
PACPAC-R310 1.035" PACPAC-R311 1.035" PACPAC-R316* 1.235" PACPAC-R317 1.325"
B
C D
.640"
.640"
.880"
.990"
.640"
.940"
.495"
.985"
.775"
1.122" .735" N/A
N/A N/A
load and installed height.
N/A N/A .640" N/A .700" N/A
Part No. PACPAC-KS93 PACPAC-S184 PACPAC-S185 PACPAC-S186 PACPAC-S187 PACPAC-S188 PACPAC-S189 PACPAC-S191 PACPAC-S194 PACPAC-S195
Description
PACPAC-R333 PACPAC-R335 PACPAC-R346 PACPAC-R348 PACPAC-R349 PACPAC-R387 PACPAC-R391
N/A N/A .680" N/A N/A N/A .690" N/A N/A N/A
.875" 1.300" .800" 1.360" 1.200" 1.450"
1.400" 1.067" .785" N/A
Valve Spring Shim Kit, 1.250" O.D., 64 Pc. Assortment
Valve Spring Shims, 1.500" O.D. x .050" Thick, 16 Pcs. Valve Spring Shims, 1.500" O.D. x .570" I.D., .030" Thick, 16 Pcs. Valve Spring Shims, 1.500" O.D. x .570" I.D., .020" Thick, 16 Pcs. Valve Spring Shims, 1.500" O.D. x .570" I.D., .015" Thick, 16 Pcs. Valve Spring Shims, 1.250" O.D. x .570" I.D., .050" Thick, 16 Pcs. Valve Spring Shims, 1.250" O.D. x .570" I.D., .030" Thick, 16 Pcs. Valve Spring Shims, 1.250" O.D. x .570" I.D., .015" Thick, 16 Pcs. Valve Spring Shims, 1.500" O.D. x .645" I.D., .020" Thick, 16 Pcs. Valve Spring Shims, 1.500" O.D. x .645" I.D., .015" Thick, 16 Pcs.
400 Sportsman Series Ti-64 Titanium
PACPAC-R436 1.450" 1.125" .800" N/A 500 Pro Series Ti-17 Titanium
PACPAC-R501 1.475" 1.185" .865" .635"
Chrome Moly Spring Seats
Dimensions
Part No. Thickness A B C
PACPAC-S138 .060" 1.270" .615" N/A PACPAC-S114 .060" 1.450" .700" N/A PACPAC-S110 .060" 1.500" .715" .570" PACPAC-S103 .060" 1.550" .770" .575" PACPAC-S105 .060" 1.550" .700" .575" PACPAC-S106 .060" 1.550" .700" N/A PACPAC-S117 .060" 1.550" .730" N/A PACPAC-S102 .060" 1.550" .855" N/A
PACPAC-R505 1.400" PACPAC-R506 1.400" PACPAC-R508 1.365" PACPAC-R538 1.475" PACPAC-R544 1.365" PACPAC-R565 1.620"
600 Series Pacaloy
PACPAC-R632 1.250" PACPAC-R649 1.200" PACPAC-R650 1.250" PACPAC-R658 1.450"
1.090" .780" N/A
1.090" .695" N/A
1.040" .715" N/A
1.140" .815" N/A
1.040" .715" N/A 8° 14.2
*7° lock angle retainer for GM LS.
1.215" .865"
.890" .600" .775" N/A .940" .685" 1.120" .715"
.630" 10° 21.5
N/A 8° — N/A 8° 14.8 N/A 8° 15.9 N/A 8° —
553