S&S engineers spent endless hours of dyno and ride time to produce what they believe to be the ideal combo of lift and duration. Result are new S&S high performance cam kits with not only excellent horsepower and torque numbers, but more important in the usual RPM range, making all the extra S&S performance usable by real world riders. For example, for the 465 cams S&S states gains of 21hp and 21 ft-lb torque coupled with performance intake and exhaust. Cams are compatible with all stock components, but for the cost of the labor to remove and reinstall the stock pushrods, you'll be money ahead to cut them out and replace them with a set of S&S Quickee pushrods for Milwaukee-Eight engines. This is also a good moment to upgrade from the stock plastic tappet anti-rotation devices to S&S billet aluminum Tappet Cuffs as these capture the tappets without impacting vertical motion and keeping them perfectly aligned, even in high stress, high RPM situations. Gear drive cam kits include all parts needed to convert to a reliable cam drive with improved valve timing accuracy. Due to machining variations in the stock cam plate oversized or undersized gears may be needed to achieve correct gear lash.
465 cams: Bolt-in! Compatible with all stock valve train components 465G gear drive provide increased torque and horsepower. Eliminates cam drive chain and tensioner. Kits include upgraded Torrington style full complement needle bearings, o-rings, and hardware. Gear drive cams provide improved valve timing accuracy
475 cams: The 475 is a 100 HP Bolt-in Cam when coupled with performance intake and exhaust. Compatible with all stock valve train components, but Quickee Pushrods recommended for ease of installation. Kits include upgraded Torrington style full complement needle bearings, o-rings, and hardware
540 cams: Designed to add even more stump pulling torque to Milwaukee Eights with a Big Bore kit installed and those that keep the revs below 6,000 RPM
550 cams: An ideal Horsepower Cam for 114CI and larger engines. Requires new Valve Springs to accommodate higher lift, Quickee Pushrods recommended for ease of installation. Kits include upgraded Torrington style full complement needle bearings, o-rings, and hardware
590 cams: Designed as an all-out Horsepower Cam for 124CI and larger engines. Its big lift lets your big mill breathe high into the RPM range
| 465 Cams |
Intake |
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Exhaust |
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| Cylinder |
Open BTDC |
Close ABDC |
Duration |
Center |
Valve Lift |
TDC Lift |
Open BBDC |
Close ATDC |
Duration |
Center |
Valve Lift |
TDC Lift |
Overlap |
| Front |
2.6º |
14.6º |
197.2º |
96.0 |
0.462" |
0.087" |
30.1º |
8.8º |
218.9º |
100.6º |
0.462" |
0.109" |
11.4º |
| Rear |
2.8º |
14.4º |
197.2º |
95.8 |
0.462" |
0.088" |
33.1º |
5.8º |
218.9º |
103.6º |
0.462" |
0.098" |
8.6º |
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| 475 Cams |
Intake |
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Exhaust |
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| Cylinder |
Open BTDC |
Close ABDC |
Duration |
Center |
Valve Lift |
TDC Lift |
Open BBDC |
Close ATDC |
Duration |
Center |
Valve Lift |
TDC Lift |
Overlap |
| Front |
6.2º |
27.2º |
213.5º |
100.5 |
0.475" |
0.107" |
55.5º |
28.5º |
263.9º |
103.5º |
0.475" |
0.208" |
34.7º |
| Rear |
2.2º |
31.2º |
213.5º |
104.5 |
0.475" |
0.093" |
52.2º |
20.2º |
252.5º |
106.0º |
0.475" |
0.170" |
22.4º |
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| 540 Cams |
Intake |
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Exhaust |
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| Cylinder |
Open BTDC |
Close ABDC |
Duration |
Center |
Valve Lift |
TDC Lift |
Open BBDC |
Close ATDC |
Duration |
Center |
Valve Lift |
TDC Lift |
Overlap |
| Front |
17.7º |
30.6º |
228.3º |
96.4 |
0.540" |
0.175" |
21.2º |
33.9º |
235.1º |
83.6º |
0.540" |
0.262" |
54.6º |
| Rear |
14.9º |
28.7º |
223.6º |
96.9 |
0.540" |
0.161" |
37.7º |
26.9º |
244.6º |
95.4º |
0.540" |
0.216" |
41.8º |
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| 550 Cams |
Intake |
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Exhaust |
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| Cylinder |
Open BTDC |
Close ABDC |
Duration |
Center |
Valve Lift |
TDC Lift |
Open BBDC |
Close ATDC |
Duration |
Center |
Valve Lift |
TDC Lift |
Overlap |
| Front |
9.4º |
29.4º |
218.9º |
100.0 |
0.550" |
0.127" |
62.5º |
30.5º |
273.1º |
106.0º |
0.550" |
0.232" |
39.9º |
| Rear |
3.1º |
31.1º |
214.2º |
104.0 |
0.550" |
0.099" |
59.4º |
38.4º |
277.8º |
100.5º |
0.550" |
0.264" |
41.5º |
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| 590 Cams |
Intake |
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Exhaust |
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| Cylinder |
Open BTDC |
Close ABDC |
Duration |
Center |
Valve Lift |
TDC Lift |
Open BBDC |
Close ATDC |
Duration |
Center |
Valve Lift |
TDC Lift |
Overlap |
| Front |
15.6º |
43.7º |
239.4º |
104.1 |
0.590" |
0.165" |
64.8º |
21.2º |
266.1º |
111.7º |
0.590" |
0.186" |
36.8º |
| Rear |
20.2º |
3.6º |
253.9º |
06.7 |
0.590" |
0.186" |
52.2º |
5.7º |
258.4º |
6.7º |
0.590" |
0.158" |
35.9º |
