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Seat Load
Open Load
Coil Bind
Rate Lbs./In.
Titanium Retainer
Steel Retainer
Cup Seat
Part No.
Description
I.D.
Shims
COM925-16 COM938-16 COM941-16 COM943-16
1.510" Dual Spring with Damper
.697" 111 @ 1.900" 388 @ 1.200" 1.175" 395 COM732/721 COM741 COM4700/4783/4771 COM4757 .730" 210 @ 1.900" 516 @ 1.250" 1.200" 480 COM738 COM741 COM4700/4778 COM4757
1.540" NASCAR
1.260" Single Spring with Damper
.871" 135 @ 1.750" 350 @ 1.250" 1.100" 443 COM728 COM750 .812" 240 @ 1.900" 598 @ 1.250" 1.160" 551 COM731/720 N/A .731" 150 @ 1.925" 410 @ 1.275" 1.225" 400 COM785 N/A
N/A
COM4753
1.550" Inter-Fit Pacaloy 1.585" Single Beehive
COM4785/4777 COM4757
COM26055-16 COM4757 COM26089-16 1.550" Dual Spring, Roller Applications .812" 230 @ 2.000" 580 @ 1.300" 1.230" 500 COM731/720 N/A COM4777/4700/4785 COM4757 COM26094-16 1.550" Dual Spring with Damper, Flat Tappet .752" 174 @ 1.900" 452 @ 1.275" 1.200" 445 COM732/721 COM749 COM4772/4773/4700 COM4757 COM26099-16 1.640" Dual Spring, Roller Applications .759" 250 @ 2.050" 693 @ 1.250" 1.184" 561 COM733 N/A COM4774/4775/4702 COM4757 COM26115-16 1.549" Dual Spring, Roller Applications .719" 228 @ 2.050" 636 @ 1.300" 1.192" 544 COM732 COM748 COM4700/4781/4782 COM4757 COM26986-16* 1.412" Single Beehive .650" 123 @ 1.750" 284 @ 1.175" 1.060" 280 COM788 COM787 COM4696-16 COM4755 * Single beehive version of COM986 dual spring. COM4711
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Seat Load
Open Load
Coil Bind
Rate Lbs./In.
Titanium Retainer
Steel Retainer
Cup Seat
Part No.
Description
I.D.
Shims
COM924-16 1.510" 2-Spring with Damper .700" 112 @ 1.900" 355 @ 1.200" 1.200" 347 COM732/721 COM741
COM4700/COM4770 COM4757 COM4700/4772/4773 COM4757
COM929-16 COM939-16 COM950-16 COM954-16 COM985-16 COM986-16 COM987-16
1.540" 2-Spring Assembly .755" 150 @ 1.880" 415 @ 1.280" 1.180" 442 COM732/721 COM741
1.540" NASCAR
.700" 138 @ 1.950" 419 @ 1.350" 1.225" 462 COM732/721 COM741 COM4700/4770/4771/4783 COM4757
1.470" 2-Spring Assembly .720" 133 @ 1.900" 332 @ 1.300" 1.200" 333 COM730 COM740/743 1.525" 2-Spring Assembly .761" 210 @ 1.900" 523 @ 1.250" 1.178" 483 COM732/721 COM741
COM4781/4782
COM4755
COM4700/4781/4782 COM4757
1.430" 2-Spring 1.430" 2-Spring 1.430" 2-Spring
.700" 165 @ 1.750" 346 @ 1.250" 1.150" 366 COM730 .697" 132 @ 1.750" 293 @ 1.250" 1.150" 322 COM730 .697" 121 @ 1.800" 343 @ 1.200" 1.150" 370 COM730
COM740 COM740 COM740
N/A N/A N/A
COM4754 COM4754 COM4754
COM999-16 1.550" H-11 Spring Assembly .724" 196 @ 1.900" 671 @ 1.150" 1.090" 633 COM732/721 N/A
COM4700/4781/4782 COM4757
COM26547-16
1.520" 2-Spring
.784" 285 @ 2.150"
810
1.190" 583 COM1732-16 COM732-16 COM4641/4642/4643-16
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Steel Retainers &RPS&DPVVWHHOUHWDLQHUVFDQKDQGOHWKHKLJKHUSUHVVXUHVGHYHORSHGE\ODUJHGLDPHWHUYDOYHVSULQJV 5HWDLQHUVDUHPDFKLQHGIURPFKURPHPRO\¿QLVKHGLQEODFNR[LGHDQGGHVLJQHGIRUSRVLWLYHOR FDWLRQZKHQFRPELQHGZLWK&RPS&DPVKLJKTXDOLW\YDOYHVSULQJV)RUVXSHULRUVWUHQJWKDQGVWDELOLW\ &RPS&DPVDOVRRIIHUVUHWDLQHUVDQGYDOYHORFNV6ROGLQVHWVRI
Dimensions
Lock Angle
Valve Stem Size
Valve Spring Diameter
Part No.
Description
A
B
C
COM740-16 Super Lock Retainer COM741-16 Super Lock Retainer
10° 10°
All All
1.437"-1.500" .690" 1.060" 1.400" 1.500"-1.550" .690" 1.115" 1.500"
COM742-16 COM743-16
Chevy 283-400 Chevy, SB Ford
7° 7°
11/32"
1.250"
.650" .870" 1.230"
11/32" 1.437"-1.500" .690" 1.060" 1.400"
COM747-16 Super Lock Retainer COM748-16 Super Lock Retainer COM749-16 Super Lock Retainer COM750-16 Super Lock Retainer
10° 10° 10° 10°
All All All All
1.437"-1.500" .690" 1.050" 1.400" 1.500"-1.550" .710" 1.095" 1.500" 1.500"-1.550" .745" 1.125" 1.500"
1.250"
.735" .870" 1.240"
COM768-16
Ford Applications
7°
11/32" 1.437-1.500" .690" 1.030" 1.400"
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Dimensions
Lock Angle
Valve Stem Size
Part No.
Description
Valve Spring Diameter
A
B
C
COM1730-16 LW Retainers COM1731-16 LW Retainers COM1732-16 LW Retainers COM1750-16 LW Retainers COM1754-16 LW Retainers COM1756-16 LW Retainers COM1772-16 LW Retainers COM1779-16 LW Retainers COM1787-16 LW Retainers
10° 10° 10° 10°
All All All All
1.437"-1.500" 1.437" 1.065" .700" 1.500"-1.550" 1.437" 1.100" .800" 1.500"-1.550" 1.500" 1.110" .710"
1.250" 1.250"
1.240" .870" .735" 1.235" .860" .610"
7°
Stock
10°
All
1.055"-1.290" 1.050" .725" 1.055"-1.290" 1.030" .640"
N/A N/A
7° 7° 7°
Stock Stock
1.290" 1.055"
1.172" .910" .646"
11/32"
1.030" .640"
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293
CIRCLE TRACK 2021-22
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