With high efficiency four-valve heads, Milwaukee Eight engines show great potential for performance gains especially with new design Andrews Milwaukee Eight series camshafts. Keep in mind, cam timing specs for four valve heads look very different from camshafts designed for two valve applications. Engines with four valve heads have much greater flow efficiency so listed cam timing durations are a lot shorter. Bolt-in cams can be used with stock pushrods, however, for ease of installation we recommend the use of Andrews EZ-Install Chrome-Moly pushrods.
| Stock 107CI |
Open @ |
Close @ |
Center |
Duration |
Duration |
Valve |
Lift @ |
| |
.050" cam lift |
.050" cam lift |
Line |
@ .050" lift |
@ .020" lift |
Lift |
TDC |
| Intake |
-7º |
1º |
94º |
174º |
212º |
0.350" |
0.055" |
| Exhaust |
33º |
14º |
113.5º |
199º |
252º |
0.370" |
0.035" |
| |
|
|
|
|
|
|
|
| M450 Cam |
Open @ |
Close @ |
Center |
Duration |
Duration |
Valve |
Lift @ |
| |
.050" cam lift |
.050" cam lift |
Line |
@ .050" lift |
@ .020" lift |
Lift |
TDC |
| Intake |
0º |
14º |
97º |
194º |
226º |
0.450" |
0.080" |
| Exhaust |
34º |
0º |
107º |
214º |
251º |
0.450" |
0.076" |
| |
|
|
|
|
|
|
|
| M460 Cam |
Open @ |
Close @ |
Center |
Duration |
Duration |
Valve |
Lift @ |
| |
.050" cam lift |
.050" cam lift |
Line |
@ .050" lift |
@ .020" lift |
Lift |
TDC |
| Intake |
0º |
20º |
100º |
200º |
233º |
0.460" |
0.080" |
| Exhaust |
38º |
2º |
108º |
220º |
258º |
0.460" |
0.086" |
| |
|
|
|
|
|
|
|
| M462 Cam |
Open @ |
Close @ |
Center |
Duration |
Duration |
Valve |
Lift @ |
| |
.050" cam lift |
.050" cam lift |
Line |
@ .050" lift |
@ .020" lift |
Lift |
TDC |
| Intake |
6º |
14º |
94º |
200º |
230º |
0.460" |
0.106" |
| Exhaust |
40º |
0º |
110º |
220º |
258º |
0.460" |
0.080" |
| |
|
|
|
|
|
|
|
| M464 Cam |
Open @ |
Close @ |
Center |
Duration |
Duration |
Valve |
Lift @ |
| |
.050" cam lift |
.050" cam lift |
Line |
@ .050" lift |
@ .020" lift |
Lift |
TDC |
| Intake |
6º |
24º |
99º |
210º |
241º |
0.464" |
0.106" |
| Exhaust |
50º |
0º |
115º |
230º |
267º |
0.460" |
0.080" |
| |
|
|
|
|
|
|
|
| M465B Cam |
Open @ |
Close @ |
Center |
Duration |
Duration |
Valve |
Lift @ |
| |
.050" cam lift |
.050" cam lift |
Line |
@ .050" lift |
@ .020" lift |
Lift |
TDC |
| Intake |
10º |
20º |
95º |
210º |
- |
0.464" |
0.126" |
| Exhaust |
46º |
14º |
108º |
236º |
- |
0.460" |
0.122" |
| |
|
|
|
|
|
|
|
| M485 Cam |
Open @ |
Close @ |
Center |
Duration |
Duration |
Valve |
Lift @ |
| |
.050" cam lift |
.050" cam lift |
Line |
@ .050" lift |
@ .020" lift |
Lift |
TDC |
| Intake |
7.5º |
29.5º |
101º |
217º |
- |
0.485" |
0.116" |
| Exhaust |
52.5º |
14.5º |
109º |
247º |
- |
0.485" |
0.145" |
| |
|
|
|
|
|
|
|
| M504 Cam |
Open @ |
Close @ |
Center |
Duration |
Duration |
Valve |
Lift @ |
| |
.050" cam lift |
.050" cam lift |
Line |
@ .050" lift |
@ .020" lift |
Lift |
TDC |
| Intake |
6º |
30º |
102º |
216º |
249º |
0.504" |
0.105" |
| Exhaust |
56º |
0º |
118º |
236º |
274º |
0.504" |
0.080" |
| |
|
|
|
|
|
|
|
| M520 Cam |
Open @ |
Close @ |
Center |
Duration |
Duration |
Valve |
Lift @ |
| |
.050" cam lift |
.050" cam lift |
Line |
@ .050" lift |
@ .020" lift |
Lift |
TDC |
| Intake |
8º |
40º |
106º |
228º |
260º |
0.520" |
0.115" |
| Exhaust |
64º |
4º |
120º |
248º |
285º |
0.520" |
0.094" |
| |
|
|
|
|
|
|
|
| M554 Cam |
Open @ |
Close @ |
Center |
Duration |
Duration |
Valve |
Lift @ |
| |
.050" cam lift |
.050" cam lift |
Line |
@ .050" lift |
@ .020" lift |
Lift |
TDC |
| Intake |
12º |
34º |
101º |
226º |
255º |
0.550" |
0.138" |
| Exhaust |
63º |
13º |
115º |
256º |
290º |
0.550" |
0.140" |
