|
Phone 360 985-0445, E-mail Keith@Johnsoncams.com
BSA
Unit Twins
we
regret to inform you that we are unable to accept orders for
camshafts
or cylinder head services until further notice
Due
to a heavy backlog of existing orders
also
please note that we are, like most businesse not open for business on weekends
or holidays.
our
business hours are 9AM to 5PM Pacific Standard Time
we
will be glad to let you know when we are again accepting orders
please
send an e-mail with your request to be put on our wait list
including
what camshaft or service you wish to order
thanks
for your interest
11
December 2007
BSA A65 Stock Cam
| Stock cam grind, retarded 5° for more top
end. Can
be ground stock.
|
| $325.00 |
Lift |
LCA |
Lash |
Tappet |
Duration |
Open |
Close |
At |
| Intake |
.344 |
105° |
.006 |
Stock Radius |
281°
255° |
36°btdc
23°btdc |
65°abdc
52°abdc |
.020
.040 |
| Exhaust |
.337 |
105° |
.008 |
Stock Radius |
277°
253° |
62°bbdc
50°bbdc |
35°atdc
23°atdc |
.020
.040 |
Cam
Chart Definitions Home Page
FAQ'S Cylinder
Head Services
Sifton 390 Cam
| Good all around race cam for flat track,
TT,
short track, and road racing motors.
|
| $325.00 |
Lift |
LCA |
Lash |
Tappet |
Duration |
Open |
Close |
At |
| Intake |
.350 |
102° |
.008 |
Stock Radius |
287°
262° |
42°btdc
31°btdc |
65°abdc
52°abdc |
.020
.040 |
| Exhaust |
.350 |
110° |
.010 |
Stock Radius |
287°
262° |
74°bbdc
62°bbdc |
32°atdc
20°atdc |
.020
.040 |
Cam
Chart Definitions Home Page
FAQ'S Cylinder
Head Services
Sifton 391 Cam
| For 1/2 mile and mile motors, high RPM power.
|
| $325.00 |
Lift |
LCA |
Lash |
Tappet |
Duration |
Open |
Close |
At |
| Intake |
.356 |
106° |
.006 |
Stock Radius |
310°
286° |
48°btdc
37°btdc |
82°abdc
69°abdc |
.020
.040 |
| Exhaust |
.356 |
106° |
.008 |
Stock Radius |
310°
286° |
82°bbdc
69°bbdc |
48°atdc
37°atdc |
.020
.040 |
Cam
Chart Definitions Home Page
FAQ'S Cylinder
Head Services
Johnson J360/264 Cam
| Johnson design for 1/2 mile, mile and road
race motors.
Providing mid-range and top end performance.
|
| $325.00 |
Lift |
LCA |
Lash |
Tappet |
Duration |
Open |
Close |
At |
| Intake |
.353 |
102° |
.008 |
Stock Radius |
305°
277° |
51°btdc
37°btdc |
73°abdc
60°abdc |
.020
.040 |
| Exhaust |
.353 |
110° |
.008 |
Stock Radius |
305°
277° |
83°bbdc
69°bbdc |
41°atdc
29°atdc |
.020
.040 |
Cam
Chart Definitions Home Page
FAQ'S Cylinder
Head Services
Johnson J380/268 Cam
| Johnson design for 1/2 mile and mile
flat track, and road racing motors. Providing mid-range and top end performance for A-70's and big bore kits.
|
| $325.00 |
Lift |
LCA |
Lash |
Tappet |
Duration |
Open |
Close |
At |
| Intake |
.375 |
102° |
.008 |
Stock Radius |
300°
276° |
49°btdc
36°btdc |
71°abdc
60°abdc |
.020
.040 |
| Exhaust |
.375 |
110° |
.008 |
Stock Radius |
300°
276° |
80°bbdc
68°bbdc |
39°atdc
27°atdc |
.020
.040 |
Cam
Chart Definitions Home Page
FAQ'S Cylinder
Head Services
Sifton High Turnover Cam
| Extreme high rpm, not for everyone!
|
| $325.00 |
Lift |
LCA |
Lash |
Tappet |
Duration |
Open |
Close |
At |
| Intake |
.360 |
111° |
.008 |
Stock Radius |
322°
296° |
52°btdc
41°btdc |
88°abdc
77°abdc |
.020
.040 |
| Exhaust |
.360 |
111° |
.010 |
Stock Radius |
322°
296° |
91°bbdc
77°bbdc |
51°atdc
38°atdc |
.020
.040 |
Cam
Chart Definitions Home Page
FAQ'S
Cylinder Head Services
| 