SIFTON BIG TWIN CAMS

SIFTON BIG TWIN CAMS from www.cas4.com
For Identification check these applications:
1987-99 Evolution
1978-86 New Shovel & 1977 Low Rider
1970-77 Alternator Shovel
1966-69 Early Shovel
1948-65 Panhead
For 1948-84 Big Twins
PN No.
YEAR CAM DEGREES @ .053 LIFT TDC TRAVEL TO FREE
Side Kick (103) Cam, Is similar to 102 but with more top end power. Requires no head work to install, do not use with hydraulic tappets.
10-0611 L1977-84
103 Opens
Closes
Total
TDC Coil Bind
Travel
Inlet 28° 57° .390 .174 .420 .470
Exhaust 53° 27° .390 .174 .420 .470
Shotgun (116) Cam combines the best features of the 102 and 103 cam. For electric start only, do not use with hydraulic tappets.
10-0618 1948-69 116 Opens
Closes
Total
TDC Coil Bind
Travel
10-0619 1970-76 Inlet 30° 55° .400 .183 .430 .480
10-0620 1977-48 Exhaust 54° 26° .400 .166 .430 .480
Aristocrat (102)Cam shows significant gain over stock, requires no head work to install. Fits 1948 and later, do not use with hyd tappets.
10-0600
1948-69
102
Opens
Closes
Total
TDC Coil Bind
Travel
10-0601
1970-E77
Inlet
32°
56°
.412
.200 .440
.490
10-0602
L1977-84
Exhaust
53
28
.412
.185 .440
.490
Avenger (109) Cam performs best in 86" and 93" motors with 4-Speed
10-0603
1948-69
109
Opens
Closes
Total
TDC Coil Bind
Travel
10-0604
1970-E77
Inlet
32.5°
50°
.440
.211 .470
.520
10-0605
L1977-84
Exhaust
58.5
30°
.440
.200 .470
.520
Cobra (112) Cam features ease of installation and increase of power in the 2500-5000 RPM range. Works best in motors up to 86". Works with hydraulic or solid lifters.
10-0663
1948-69
112
Opens
Closes
Total
TDC
Coil Bind
Travel
10-0664
1970-E77 Inlet
28° 45° .440
.200
.470
.520
10-0665
L1977-84 Exhaust
53° 25° .440
.179
.470
.520
Crusader (107)Cam is a good cam for low end and mid range and is designed to be used with hydraulic lifters.
10-0667
1948-69
107
Opens
Closes
Total
TDC Coil Bind
Travel
10-0668
1970-E77
Inlet
29°
54°
.440
.192 .470
.520
10-0669
1977-84
Exhaust
53°
25°
.440
.164 .470
.520
Silencer (107)Cam has excellent power and good torque in the low end in large motors. For 1948 and later, do not use with hyd. tappets.
10-0612 1948-69
107
Opens
Closes
Total
TDC Coil Bind
Travel
10-0613 1970-E77
Inlet
28°
45°
.440
.200 .500
.550
10-0614 1977-84
Exhaust
55°
28°
.468
.210 .500
.550
Equalizer (105)Cam develops outstanding top end performance with excellent mid range and good low end. For motors 1948 and later, do not use with hydraulic tappets. In 1948-65 motors, the ignition drive gear must be altered to accommodate the high lift of the cam.
10-0615

1948-69

105

Opens

Closes

Total

TDC

Coil Bind

Travel


Inlet

25°

60°

.475

.190

.505

.555

Exhaust

63°

23°

.475

.175

.505

.555

Magnum (108)Cam is a high performance cam for very fast street bikes and drag racing inlarge stocked motors. In 1948-65 motorsthe ignition drive gear must be altered to accommodate the high lift or the cam.

10-0606 1948-69
105
Opens
Closes
Total
TDC Coil Bind
Travel
10-0607 1970-E77 Inlet
34°
65°
.485
.214 .515
.565
10-0608 L1977-84 Exhaust
66°
34°
.485
.240 .515
.565
Viper (146 Ev) 495 Cam delivers excellent performance throughout the RPM range. Bolt in street cam with first open and closeramps. For 1987-99 Evolution
10-8182

1987-1999

495

Opens

Closes

Total

TDC

Coil Bind

Travel

Inlet

20°

36°

.495

.236

Exhaust

44°

16°

.495

.240