Page 29 - Classic
P. 29
S&S Cam
VT No. Year S&S# Application Valve Valve Valve Valve Valve Lift Lift @ Lift @ Requirements Lifter Type
Timing * Timing * Duration Duration Shovel/Pan TDC + TDC + Spring Spacing
Intake Exhaust Intake Exhaust Intake Exhaust
Open/ Open/
Close Close
10-5045 1978-84 S&S Engines up to 88” with up +8.5:1. 18°/38° 40°/18° 236° 238° .475”/.453” .158” .152” No Bolt In Hydraulic
Good low and mid range torque.
10-5050 1948-69 S&S 80”/84” to 96” engines with 8.5:1 23°/43° 43°/23° 246° 246° .514”/.540” .169” .169” Yes Solid
514 or less CR. Good mid range.
10-5047 1970-77 S&S 88” to 103” engines with 9:1 to 20°/55° 60°/20° 255° 260° .587”/.560” .168” .164” Yes Solid
560S 10:1 CR. Strong power through-
out RPM range.
*Note: Timing designation is function of zero lash @ .053” off base circle.
+Lifts at TDC are measured at the valve and are for reference only. Overlap valve lifts must be checked on assembled motor. Minimum valve to valve clearance of
.040” is recommended.
Sifton Cam
Sifton Patches. CLASSIC
VT No. Style 10-0610
48-1327 Logo
48-0368 Handshake
48-0368 48-1208 Cam
48-1327 48-1208
For Identification check these applications:
1978-86 New Shovelhead and 1977 Low Rider
1970-77 Alternator Shovelhead
For 1948-84 Big Twins
VT No. Year Cam Degrees At .053 Lift TDC Travel to Free
Side Kick Cam is similar to 102 but with more top end power. Requires no head work to install. Do not use with hydraulic tappets.
— Late 1948-69 103 Opens Closes Total TDC Coil Bind Travel
10-0610 Late 1970-77 Inlet 28° 57° .390 .174 .420 .470
10-0611 Late 1978-84 Exhaust 53° 27° .390 .174 .420 .470
Aristocrat Cam shows significant gain over stock, requires no head work to install. Fits 1948-up. Do not use with hydraulic tappets.
— 1948-69 102 Opens Closes Total TDC Coil Bind Travel
10-0601 Late 1970-77 Inlet 32° 56° .412 .200 .440 .490
10-0602 1978-84 Exhaust 53 28 .412 .185 .440 .490
Avenger Cam performs best in 86” and 93”cubic inch engines with 4-Speed works well with hydraulic, perform best with solid lifters.
10-0603 1948-69 109 Opens Closes Total TDC Coil Bind Travel
Inlet 32.5° 50° .440 .211 .470 .520
Exhaust 58.5° 30° .440 .200 .470 .520
Crusader Cam is a good cam for low end and mid range and is designed to be used with hydraulic lifters.
— 1948-69 107 Opens Closes Total TDC Coil Bind Travel
10-0668 Late 1970-77 Inlet 29° 54° .440 .193 .470 .520
CUBIC INCH CHART
Stock 74" 80"
Stroke
B STROKE 3¹⁄₂” 3.968” 4¹⁄₄” 4¹⁄₂” 4⁵⁄₈” 4³⁄₄” 5.00”
3 / 16”
61”
5
O 3 / 16” 64.8” 73.7” 78.7” 83.4” 85.7” 88.0” 92.8”
7
1
91.4”
86.6”
89.0”
81.6”
3 / 2”
67.2” 76.3”
96.1”
R 3 / 8” 72.1” 81.7” 87.4” 92.9” 95.5” 99.0” 103.2”
5
101.5”
106.8”
3 / 16”
98.8”
96.1”
11
74.6” 84.7”
90.7”
E 3 / 16” 79.9” 90.6” 97.0” 102.8” 103.7” 108.9” 114.2”
13
3 / 8”
117.8”
7
100.1” 100”
108.9” 111.9”
82.3” 93.4”
4.00” 87.9” 99.7” 106.8” 113.0” 116.1” 119.3” 125.6”
1
4 / 8” 93.4” 106.0” 113.5” 120.2” 123.5” 126.9” 133.6”
1
4 / 4” 99.2” 112.6” 120.5” 127.6” 131.1” 134.7” 141.8”
2
1 cubic inch = 16.38 cc Cubic Inch = πr x Stroke
1 cubic inch = .0163871 liter r = 1/2 of Bore
497
VT No. Year S&S# Application Valve Valve Valve Valve Valve Lift Lift @ Lift @ Requirements Lifter Type
Timing * Timing * Duration Duration Shovel/Pan TDC + TDC + Spring Spacing
Intake Exhaust Intake Exhaust Intake Exhaust
Open/ Open/
Close Close
10-5045 1978-84 S&S Engines up to 88” with up +8.5:1. 18°/38° 40°/18° 236° 238° .475”/.453” .158” .152” No Bolt In Hydraulic
Good low and mid range torque.
10-5050 1948-69 S&S 80”/84” to 96” engines with 8.5:1 23°/43° 43°/23° 246° 246° .514”/.540” .169” .169” Yes Solid
514 or less CR. Good mid range.
10-5047 1970-77 S&S 88” to 103” engines with 9:1 to 20°/55° 60°/20° 255° 260° .587”/.560” .168” .164” Yes Solid
560S 10:1 CR. Strong power through-
out RPM range.
*Note: Timing designation is function of zero lash @ .053” off base circle.
+Lifts at TDC are measured at the valve and are for reference only. Overlap valve lifts must be checked on assembled motor. Minimum valve to valve clearance of
.040” is recommended.
Sifton Cam
Sifton Patches. CLASSIC
VT No. Style 10-0610
48-1327 Logo
48-0368 Handshake
48-0368 48-1208 Cam
48-1327 48-1208
For Identification check these applications:
1978-86 New Shovelhead and 1977 Low Rider
1970-77 Alternator Shovelhead
For 1948-84 Big Twins
VT No. Year Cam Degrees At .053 Lift TDC Travel to Free
Side Kick Cam is similar to 102 but with more top end power. Requires no head work to install. Do not use with hydraulic tappets.
— Late 1948-69 103 Opens Closes Total TDC Coil Bind Travel
10-0610 Late 1970-77 Inlet 28° 57° .390 .174 .420 .470
10-0611 Late 1978-84 Exhaust 53° 27° .390 .174 .420 .470
Aristocrat Cam shows significant gain over stock, requires no head work to install. Fits 1948-up. Do not use with hydraulic tappets.
— 1948-69 102 Opens Closes Total TDC Coil Bind Travel
10-0601 Late 1970-77 Inlet 32° 56° .412 .200 .440 .490
10-0602 1978-84 Exhaust 53 28 .412 .185 .440 .490
Avenger Cam performs best in 86” and 93”cubic inch engines with 4-Speed works well with hydraulic, perform best with solid lifters.
10-0603 1948-69 109 Opens Closes Total TDC Coil Bind Travel
Inlet 32.5° 50° .440 .211 .470 .520
Exhaust 58.5° 30° .440 .200 .470 .520
Crusader Cam is a good cam for low end and mid range and is designed to be used with hydraulic lifters.
— 1948-69 107 Opens Closes Total TDC Coil Bind Travel
10-0668 Late 1970-77 Inlet 29° 54° .440 .193 .470 .520
CUBIC INCH CHART
Stock 74" 80"
Stroke
B STROKE 3¹⁄₂” 3.968” 4¹⁄₄” 4¹⁄₂” 4⁵⁄₈” 4³⁄₄” 5.00”
3 / 16”
61”
5
O 3 / 16” 64.8” 73.7” 78.7” 83.4” 85.7” 88.0” 92.8”
7
1
91.4”
86.6”
89.0”
81.6”
3 / 2”
67.2” 76.3”
96.1”
R 3 / 8” 72.1” 81.7” 87.4” 92.9” 95.5” 99.0” 103.2”
5
101.5”
106.8”
3 / 16”
98.8”
96.1”
11
74.6” 84.7”
90.7”
E 3 / 16” 79.9” 90.6” 97.0” 102.8” 103.7” 108.9” 114.2”
13
3 / 8”
117.8”
7
100.1” 100”
108.9” 111.9”
82.3” 93.4”
4.00” 87.9” 99.7” 106.8” 113.0” 116.1” 119.3” 125.6”
1
4 / 8” 93.4” 106.0” 113.5” 120.2” 123.5” 126.9” 133.6”
1
4 / 4” 99.2” 112.6” 120.5” 127.6” 131.1” 134.7” 141.8”
2
1 cubic inch = 16.38 cc Cubic Inch = πr x Stroke
1 cubic inch = .0163871 liter r = 1/2 of Bore
497
