Trick Flow by PAC Racing Valve Springs
Single with Damper
Dual
Triple Sportsman
Dual with Damper
Beehive
Trick Flow by PAC Racing Valve Springs Valve springs compress and rebound hundreds of times a second. Make sure your next set of valve springs are built to last and built to win! Trick Flow by PAC Racing valve springs are the only springs manufactured to Trick Flow’s rigorous, world-class testing standards. Every spring is CNC-coiled from high tensile-strength, extra-durable Pacaloy™ chrome-silicon steel and double shot-peened beyond Aerospace Material Specifications (AMS) reliability standards. The Trick Flow by PAC Racing valve springs are available in four configurations to work with virtually any camshaft and valvetrain combination. Sold in sets of 16, except for TFS-15410-24 (set of 24) and TFS-15411-32 (set of 32).
Trick Flow by PAC Racing dual valve springs are for more aggressive cam profiles. Choose the standard dual springs, or the dual springs with damper coils for spring surge prevention.
Single Valve Springs
Beehive Valve Springs
Trick Flow by PAC Racing single valve springs have flat internal damping coils to prevent spring surge at high revs, maintaining proper spring pressure at critical load levels.
Drop in a more aggressive cam without machining your spring seats! Trick Flow by PAC Racing beehive springs have heavyweight spring rates but will fit inside the stock valve seats and can be used with the stock retainers.
Dual Valve Springs
Triple Sportsman Valve Springs Trick Flow by PAC Racing triple sportsman springs are designed for bracket drag racing, with higher spring rates to withstand ultra high-revving, high-horsepower engines.
Trick Flow by PAC Racing Single Valve Springs (with internal damping coils)
Specifications
Recommended Components
I.D. of Outer Spring (In.)
I.D. of Inner Spring (In.)
Seat Load (Lbs./In.)
Open Load (Lbs./In.)
Coil Bind (In.)
Rate (Lbs./ In.)
Valve Spring Retainers (Chromoly Steel)
Valve Stem Locks
Valve Spring Upgrade Kits
Application Recommendations
TFS-16314-16
1.250
.870
.780
110 @ 1.780
300 @ 1.280
1.180
380
TFS-31400423
TFS-31400443
—
Replacement for Super 23® cylinder heads for small block Chevrolet
TFS-16981-16
1.254
.880
.790
110 @ 1.700
300 @ 1.250
1.150
422
TFS-31400423
TFS-31400443
TFS-K16981
Up to .500" lift @ 1.700" installed height
TFS-16941-16
1.244
.860
.770
125 @ 1.750
350 @ 1.250
1.150
450
TFS-31400423
TFS-51400444
—
Up to .600" lift @ 1.800" installed height
TFS-16848-16
1.255
.871
.781
110 @ 1.700
311 @ 1.200
1.150
402
TFS-31400423
TFS-31400443
—
Up to .500" lift @ 1.700" installed height
TFS-16846-16
1.265
.865
.765
125 @ 1.750
388 @ 1.250
1.150
526
TFS-31400423
TFS-51400444
—
Up to .600" lift @ 1.800" installed height
TFS-16910-16
1.355
.940
.851
90 @ 1.850
300 @ 1.350
1.204
418
TFS-21400410
TFS-31400443
—
Up to .550" lift @ 1.850" installed height
TFS-16984-16
1.430
1.066
.976
110 @ 1.750
225 @ 1.250
1.125
230
TFS-51400423
TFS-31400443
—
Up to .600" lift @ 1.800" installed height
TFS-16942-16
1.437
1.037
.947
115 @ 1.700
285 @ 1.200
1.150
340
TFS-51400423
TFS-31400443
TFS-K16942
Up to .500" lift @ 1.700" installed height
TFS-16990-16
1.437
1.073
1.003
115 @ 1.500
240 @ 1.030
.903
266
TFS-51400423
TFS-31400443
TFS-K16990
Up to .500" lift @ 1.500" installed height
TFS-16840-16
1.460
1.060
.970
92 @ 1.580
296 @ 1.100
1.050
425
TFS-51400423
TFS-30600444
—
Up to .500" lift @ 1.580" installed height
TFS-16972-16
1.460
1.060
.970
109 @ 1.850
293 @ 1.250
1.146
307
TFS-51400423
TFS-31400443
TFS-K16972
Up to .600" lift @ 1.850" installed height
TFS-16940-16
1.464
1.080
.990
95 @ 1.900
236 @ 1.300
1.189
235
TFS-51400423
TFS-31400443
—
Up to .600" lift @ 1.900" installed height
TFS-16926-16
1.476
1.062
.972
110 @ 1.800
318 @ 1.300
1.167
416
TFS-51400423
TFS-31400443
TFS-K16926
Up to .550" lift @ 1.800" installed height
TFS-16514-16
1.488
1.066
.976
118 @ 1.800
333 @ 1.200
1.040
358
TFS-51400423
TFS-31400443
—
Replacement for Twisted Wedge® 170, 185, 190, and 205 cylinder heads for small block Ford
TFS-16901-16
1.495
1.081
.991
101 @ 1.650
253 @ 1.220
1.100
355
TFS-51400423
TFS-31400443
—
Up to .450" lift @ 1.650" installed height
TFS-16839-16
1.500
1.086
.996
98 @ 1.880
316 @ 1.300
1.115
376
TFS-51400423
TFS-31400443
TFS-K16839
Up to .600" lift @ 1.880" installed height
TFS-16911-16
1.525
1.110
1.000
127 @ 1.900
311 @ 1.400
1.110
368
TFS-21400425
TFS-52400444
TFS-K16911
Up to .600" lift @ 1.900" installed height
TFS-16936-16
1.540
1.125
1.016
145 @ 1.900
320 @ 1.338
1.200
311
TFS-21400425
TFS-52400444
—
Up to .600" lift @ 1.900" installed height
Valvetrain Components
Part Number
O.D. of Outer Spring (In.)
Phone: 1-330-630-1555 • Fax: 1-330-633-2504 • TrickFlow.com Phone: 1300 350 351
Fax: 1300 350 454
Web: www.fabre.com.au
Email: info@fabre.com.au
57