202
Wiseco Tracker Series Piston Sets feature Armor Glide skirt
coating for reduced friction, quieter operation, pressure seal
groove reduces ring lifting and power loss, forged piston crown
with generous valve pockets for big valves and cams, and preci-
sion at rings for ultimate sealing power. Rings are per piston.
Size
Piston Kit
Repl. Ring
Repl. Wrist Pin
Repl. Circlip
For 1999-06 Twin Cam 88" models bored to 1550cc (95" cubic inch) VM-Ring
Package (9.5:1 comp.)
STD
11-1306
11-1422
11-9774
.010
11-1307
11-1423
11-9774
.020
11-1308
11-1424
11-9774
For use 1999-06 Twin Cam 88" models bored to 1550cc (95" cubic inch) VM-
Ring Package (10.5:1 comp. )
Stand
11-1309
11-1422
11-9774
.010
11-1310
11-1423
11-9774
.020
11-1311
11-1424
11-9774
For use with 2012-17 Twin Cam 96" and 2007-13 Twin Cam 96 bored to 1691
cc (103" cubic inch) (10.5:1 comp. domed), also fits 1999-06 Twin Cam 88
with 4 3/8" stroke crank
STD
11-1312
11-1422
11-9774
.010
11-1313
11-1423
11-9774
.20
11-1314
11-1424
11-9774
For Evolution Applications
For 1984-99 1340cc Evo Big Twin X-Ring Package (8.5:1 comp.) Flat Top
STD
11-1315
11-9759
11-9778
11-9773
.010
11-1316
11-9762
11-9778
11-9773
.020
11-1317
11-9760
11-9778
11-9773
.030
11-1318
11-9764
11-9778
11-9773
For 1984-99 1340cc Evo Big Twin X-Ring Package (10:1 comp.) Domed Top
STD
11-1319
11-9759
11-9778
11-9773
.010
11-1320
11-9762
11-9778
11-9773
.020
11-1321
11-9760
11-9778
11-9773
.030
11-1322
11-9764
11-9778
11-9773
Piston Kit
KB PERFORMANCE PISTONS
The Keith Black 390 Hypereutectic alloy is cast in a permanent
steel mold which makes it possible to build a light weight piston that
makes more power and uses less fuel and lasts longer than any other
type of piston being made today. We can now forget about running
loose, noisy, oil-burning pistons. The low heat transfer of the alloy
keeps the skirts cool so piston expansion is minimal. Test engines
have run with as little as .0005” (1/2 thousandth) piston-to-wall clear-
ance. The combination of a low heat transfer piston alloy and high
compression ring placement increases power and economy. The
high ring placement alone reduces detonation and increases the top
ring temperature. It is important to see our ring end gap instructions
to avoid ring butting.
The KB piston will make maximum power at 2 to 4 degrees less total
timing than conventional pistons. All KB piston sets are supplied with
Hastings Moly Ring sets. Safe top ring end gaps can be found by
multiplying the bore diameter by the appropriate ring end gap fac-
tor from the adjoining chart.
Example: 3.5” bore “Street Normally Aspirated” = 3.5” bore x
.0065” = .023” top ring end gap.
Note: Second ring end gaps do not need extra clearance
11-2216
11-2264
Engine
Model
Years
C.I.D.
Bore
Stroke
Cylinder
Height
Comp. Ratio
1340cc
Evolution
FLH-FX
1984-up
80”
3.498
4.250”
5.550”
8.6:1
1340cc
Evolution
FL-FX
1984-up
80”
3.498
4.250”
5.550”
9.6:1
1340cc
Evolution
FL-FX
1984-up
80”
3.498
4.250”
5.550”
10.5:1
TC-88
FL-FX
88”
3.750”
4.00”
4.938”
10.6:1
TC-96/103
FL-FX
2007-17
FXST, FLST,
FXD, 2007-16
FLT
95”
3.875”
4.00”
9.3:1
Standard
11-2216 11-2257
11-2274
.005
11-2217 11-2258 11-2223
11-2275
.010
11-2218 11-2259 11-2224
11-2276
.020
11-2219 11-2260 11-2225
.030
11-2220 11-2261 11-2226 11-2273
11-2278
.040
11-2221
APPLICATION
RING
END
GAP
FACTOR
PISTON TO WALL
CLEARANCE
Street Normally Aspirated
.0065”
.00075”-.0015”
Street Nitrous or Supercharged
.0080”
.0015”-.0025”
Flat Track Gasoline
.0080”
.0010”-.0030”
Flat Track Alcohol
.0060”
.0010”-.0030”
Drag Gasoline
.0075”
.0010”-.0030”
Drag Alcohol
.0065”
.0010”-.0030”
Drag Supercharged or Nitrous Gas
.0095”
.0015”-.0030”
Drag Supercharged Alcohol
.0085”
.0010”-.0030”
Drag Supercharged Fuel
.0115”
.0020”-.0040”