Some parts are not legal for sale or use in California or other states with similar laws/regulations—see pg. 2 for details. WARNING: For Proposition 65 information, see pg. 2 Trick Flow by PAC Racing Valve Spring Upgrade Kits Trick Flow by PAC Racing Performance Valve Spring Upgrade Kits Installing a new camshaft is a sure way to improve horsepower—just remember that the rest of the valvetrain must be upgraded to support it. These Trick Flow by PAC Racing performance valve spring upgrade kits include the components you need to keep your engine running in tip-top shape after a cam swap. Each kit features high-quality Trick Flow by PAC Racing Pacaloy™ valve springs, hardened chromoly steel or titanium retainers, and precision machined steel valve locks. Trick Flow by PAC Racing Performance Valve Spring Upgrade Kits Kit Part Number Spring Part Number Spring Style Seat Load (Lbs./In.) Open Load (Lbs./In.) Coil Bind (In.) Rate (Lbs./ In.) Valve Spring Retainers (Chromoly Steel) Valve Stem Locks Lock Type Max. Lift (In.) Application Recommendations TFS-2500100 TFS-16514-16 Single 118 @ 1.800 330 @ 1.200 1.040 358 TFS-2500100-INT TFS-2500100-EXH TFS-31400443 7°, 11/32" .540 OEM Ford 289-351W cast iron cylinder heads TFS-2500200 TFS-16315-16 Dual 134 @ 1.800 405 @ 1.200 1.013 452 TFS-51400423 TFS-52400444 10°, 11/32" .600 Upgrade Trick Flow Twisted Wedge® 170 cylinder heads to optional high lift cam specifications TFS-2500280 TFS-16904-16 Dual 150 @ 1.800 372 @ 1.200 1.010 370 TFS-21400415 TFS-30600444 7°, 8mm .650 OEM GM LS cylinder heads; chromoly retainers TFS-2500285 TFS-16904-16 Dual 150 @ 1.800 372 @ 1.200 1.010 370 TFS-214T0425* TFS-30600444 7°, 8mm .650 OEM GM LS cylinder heads; titanium retainers TFS-2500286 TFS-16905-16 Dual 160 @ 1.800 425 @ 1.130 1.050 392 TFS-21400415 TFS-30600444 7°, 8mm .660 OEM GM LS cylinder heads; chromoly retainers TFS-2500286P TFS-16905P-16 Dual 160 @ 1.800 425 @ 1.130 1.050 392 TFS-21400415 TFS-30600444 7°, 8mm .660 OEM GM LS cylinder heads; chromoly retainers TFS-2500287 TFS-16905-16 Dual 160 @ 1.800 425 @ 1.130 1.050 392 TFS-214T0425* TFS-30600444 7°, 8mm .660 OEM GM LS cylinder heads; titanium retainers TFS-2500287P TFS-16905P-16 Dual 160 @ 1.800 425 @ 1.130 1.050 392 TFS-214T0425* TFS-30600444 7°, 8mm .660 OEM GM LS cylinder heads; titanium retainers TFS-2500289 TFS-16905-16 Dual 160 @ 1.800 425 @ 1.130 1.050 392 TFS-214T0427* TFS-30600444 7°, 8mm .660 OEM GM LS9 cylinder heads; titanium retainers TFS-2500295 TFS-16306-16 Dual 150 @ 1.800 420 @ 1.200 1.100 450 TFS-21400415 TFS-30600444 7°, 8mm .650 OEM GM LS cylinder heads; chromoly retainers TFS-2500300 TFS-16306-16 Dual 150 @ 1.800 420 @ 1.200 1.100 450 TFS-214T0425* TFS-30600444 7°, 8mm .650 OEM GM LS cylinder heads; titanium retainers TFS-2500301 TFS-16917-16 Dual 155 @ 1.800 436 @ 1.150 1.000 433 TFS-214T0425* TFS-30600444 7°, 8mm .700 OEM GM LS cylinder heads; titanium retainers, .505" I.D. locators TFS-2500302 TFS-16917-16 Dual 155 @ 1.800 436 @ 1.150 1.000 433 TFS-214T0425* TFS-30600444 7°, 8mm .700 OEM GM LS cylinder heads; titanium retainers, .570" I.D. locators TFS-2500305 TFS-16208-16 Dual 160 @ 1.800 482 @ 1.100 1.000 460 TFS-214T0425* TFS-30600444 7°, 8mm .750 OEM GM LS cylinder heads; titanium retainers, .505" I.D. locators TFS-2500306 TFS-16208-16 Dual 160 @ 1.800 482 @ 1.100 1.000 460 TFS-214T0425* TFS-30600444 7°, 8mm .750 OEM GM LS cylinder heads; titanium retainers, .570" I.D. locators TFS-2500500 TFS-16519-16 Beehive 90 @ 1.600 205 @ 1.020 .980 209 TFS-51900423 TFS-51900444 7°, 7mm .600 OEM Ford 4.6L/5.4L 2V, naturally aspirated engines TFS-2500525 TFS-16125-16 Beehive 125 @ 1.570 275 @ 1.020 .970 258 TFS-51900423 TFS-51900444 7°, 7mm .580 OEM Ford 4.6L/5.4L 2V, forced induction engines or Trick Flow Twisted Wedge® 185 cylinder heads TFS-2500526 TFS-16521-16 Dual 150 @ 1.500 290 @ .900 .850 233 TFS-52900423 TFS-51900444 7°, 7mm .650 Upgrades one pair of Trick Flow Twisted Wedge Track Heat® cylinder heads with 90/125 lb. springs to Twisted Wedge Track Heat 185 with 150 lb. dual springs specifications TFS-K16306 TFS-16306-16 Dual 150 @ 1.800 438 @ 1.200 1.100 448 TFS-21400125 TFS-51400444 7°, 11/32" .650 Up to .650 lift @ 1.800" installed height TFS-K16839 TFS-16839-16 Single 98 @ 1.880 316 @ 1.300 1.115 376 TFS-51400423 TFS-31400443 7°, 11/32" .600 Up to .600" lift @ 1.880" installed height TFS-K16893 TFS-16893-16 Dual 120 @ 1.875 394 @ 1.175 1.050 391 TFS-51400423 TFS-31400443 7°, 11/32" .700 Up to .700" lift @ 1.875" installed height TFS-K16911 TFS-16911-16 Single 127 @ 1.900 311 @ 1.400 1.110 368 TFS-21400425 TFS-52400444 10°, 11/32" .600 Up to .600" lift @ 1.900" installed height TFS-K16926 TFS-16926-16 Single 110 @ 1.800 318 @ 1.300 1.167 416 TFS-51400423 TFS-31400443 7°, 11/32" .550 Up to .550" lift @ 1.800" installed height TFS-K16942 TFS-16942-16 Single 115 @ 1.700 285 @ 1.200 1.150 340 TFS-51400423 TFS-31400443 7°, 11/32" .500 Up to .500" lift @ 1.700" installed height TFS-K16943 TFS-16943-16 Dual 240 @ 1.900 625 @ 1.200 1.068 550 TFS-21400425 TFS-52400444 10°, 11/32" .700 Up to .700" lift @ 1.900" installed height TFS-K16972 TFS-16972-16 Single 109 @ 1.850 293 @ 1.250 1.146 307 TFS-51400423 TFS-31400443 7°, 11/32" .600 Up to .600" lift @ 1.850" installed height TFS-K16981 TFS-16981-16 Single 110 @ 1.700 300 @ 1.250 1.150 422 TFS-31400423 TFS-31400443 7°, 11/32" .500 Up to .500" lift @ 1.700" installed height *Titanium retainers TFS-2500286P
TrickFlow PRI Catalog_26
| Title Name |
Pages |
Delete |
Url |
| Empty |
Ai generated response may be inaccurate.
Search Text Block
Page #page_num
#doc_title
Hi $receivername|$receiveremail,
$sendername|$senderemail wrote these comments for you:
$message
$sendername|$senderemail would like for you to view the following digital edition.
Please click on the page below to be directed to the digital edition:
$thumbnail$pagenum
$link$pagenum
Your form submission was a success.
Downloading PDF
Generating your PDF, please wait...
This process might take longer please wait
