High Performance Valve Springs Dual Valve Springs
Load @ Checking Height Load @ Open Height Coil Bind Ht. In. Lbs. In. Lbs. In.
Matched Retainers
Lock Angle
Part No.
Description 2 Spring Assy. 2 Spring Assy. 2 Spring Assy. 2 Spring Assy. 2 Spring Assy. 2 Spring Assy. 2 Spring Assy. 2 Spring Assy. 2 Spring Assy.
OD In.
ID In.
Steel
Titanium COM731 COM731 COM731 COM732 COM732 COM732 COM732 COM738 COM732 COM738 COM732 COM731 COM730 COM732 COM732 COM739 COM730 COM730 COM730 COM730 COM730 COM730 COM733 COM730 COM730 COM733 COM733 COM732
COM914-16 COM917-16 COM919-16 COM928-16 COM929-16 COM930-16 COM932-16 COM933-16 COM935-16 COM938-16 COM939-16 COM950-16 COM953-16 COM954-16 COM977-16 COM978-16 COM985-16 COM986-16 COM987-16 COM988-16 COM991-16 COM994-16 COM995-16 COM996-16 COM998-16 COM999-16
1.489" .819" 1.550" .824" 1.540" .814" 1.509" .697" 1.550" .795" 1.535" .755" 1.509" .795" 1.560" .750" 1.550" .750" 1.554" .746" 1.540" .731" 1.540" .697" 1.464" .724" 1.535" .755" 1.535" .731" 1.460" .700" 1.460" .697" 1.430" .700" 1.430" .697" 1.430" .697" 1.384" .804" 1.650" .820" 1.437" .697" 1.437" .697" 1.625" .769" 1.625" .769" 1.550" .724" 1.320" .654"
165 200 194 115 149 150 142 200 176 194 203 137 240 132 162 223 240 236 155 126 164 132 121 125 222 100 115 223 228 196 159
1.800" 1.800" 1.950" 1.900" 1.880" 1.880" 1.900" 2.000" 1.950" 1.950" 1.900" 1.950" 1.900" 1.900" 1.900" 1.900" 2.000" 2.000" 1.850" 1.850" 1.750" 1.750" 1.800" 1.600" 1.950" 1.700" 1.700" 2.000" 1.900" 1.900" 1.835"
385 596 579 322 371 434 371 513 494 524 467 467 598 331 484 537 582 671 419 368 331 280 388 240 670 300 340 759 702 671 448
1.200" 1.110" 1.100" 1.050" 1.250" 1.100" 1.200" 1.175" 1.250" 1.160" 1.230" 1.180" 1.250" 1.160" 1.350" 1.090" 1.300" 1.200" 1.250" 1.180" 1.250" 1.225" 1.250" 1.225" 1.250" 1.160" 1.300" 1.200" 1.250" 1.085" 1.250" 1.170" 1.300" 1.230" 1.250" 1.145" 1.250" 1.195" 1.250" 1.195" 1.250" 1.150" 1.250" 1.150" 1.200" 1.150" 1.100" 1.000" 1.250" 1.125" 1.150" 1.020" 1.150" 1.050" 1.150" 1.090" 1.200" 1.090" 1.150" 1.090"
COM741 COM741 COM741 COM741 COM741 COM741 COM741 COM748 COM741 COM748 COM741 COM741 COM740 COM741 COM741 COM740 COM740 COM740 COM740 COM740 COM740 COM740 COM740 N/A N/A N/A N/A
10° 10° 10° 10° 10° 10° 10° 10° 10° 10° 10° 10° 10° 10° 10° 10° 10° 10° 10° 10° 10° 10° 10° 10° 10° 10° 10° 10°
COM924-16 2 Spring (920, 974) w/Damper
— 10°
2 Spring Assy. (936, 937) 2 Spring Assy. (936, 975)
COM943-16 2 Spring Assy. Inter-Fit Hi-Tech 1.550" .812"
2 Spring Assy. 2 Spring Assy. 2 Spring Assy.
COM955-16 2 Spring Assy. Inter-Fit Hi-Tech 1.550" .812" COM959-16 2 Spring Assy. Inter-Fit Pacaloy 1.645" .865"
COM720, 731 10°
2 Spring Assy. (972,973) 2 Spring Assy. (972,974) 2 Spring Assy. (984,973) 2 Spring Assy. (984,974) 2 Spring Assy. (984,975)
2 Spring Assy. 2 Spring Assy. 2 Spring Assy.
2 Spring Assy. (990,975) 2 Spring Assy. H-11 2 Spring Assy. H-11 2 Spring Assy. H-11
N/A N/A N/A
COM26926-16
Ultra Dual
1.160" 1.066" COM1779-16
— 7°
Hi-Tech Drag Race Valve Springs
Load @ Checking Height Load @ Open Height Coil Bind Ht. In. Lbs. In. Lbs. In.
Matched Retainers Lock Angle Steel Titanium — COM731 10° — COM739 10°
Part No.
Description
OD In. ID In.
COM944-16 A COM946-16 A COM947-16 A COM948-16 A
2 Spring Assy. Hi-Tech 1.570" .796" 190 3 Spring Assy. Hi-Tech 1.645" .635" 353 3 Spring Assy. Hi-Tech 1.645" .635" 304 3 Spring Assy. Hi-Tech 1.645" .635" 332
1.950" 1.900" 2.000" 2.100" 1.950"
755 800 848 949 710
1.200" 1.100" 1.250" 1.130" 1.250" 1.130" 1.200" 1.130" 1.200" 1.100"
— COM739 B
10°
— COM739 10°
COM951-16 2 Spring Assy. Hi-Tech 1.620" .846" 230 — COM736 10° Notes: All valve springs are available as singles or in sets of 8, 12, 16. Springs are checked with proper retainer - Spring pressure may vary +/-10%. A: Special seals available to fit these springs. B: Use COM735 for +.050" installed height.
Hi-Tech Drag Race Valve Springs For High Valve Lift Applications Designed for drag engines with valve lifts exceeding .750", springs have a very high level of fatigue resistance for extended life and durability. High tech, super-clean chrome silicon material is held to tight stress relief and shot peen tolerances.
Load @ Checking Height Load @ Open Height Coil Bind Ht. In. Lbs. In. Lbs. In.
Matched Retainers
Lock Angle
Part No.
Description Triple Spring
OD In.
ID In.
Steel
Titanium
COM26082-16 COM26099-16 COM26115-16
1.645" .635" 1.625" .769" 1.549" .719"
332 245 230
2.100" 2.050" 2.050"
949 706 642
1.200" 1.250" 1.300"
1.130" 1.205"
— COM735/739 10°
Dual Spring With Damper Dual Spring With Damper
— COM733
10° 10°
1.225" COM748
COM732
CARD RACING
DENNIS WHITE
206
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