| Model |
Part # |
Lift |
Duration
at .040" |
Lobe
Centers |
Description & Application |
In. Open/Close
Ex. Open/Close |
Running
Clearance |
Price |
|
Twin
A-10 |
Hardfaced Megacycle cams on customer cores. |
| 544-TA |
Re-radius tappets on customer core, cost each. |
29.00 |
call |
| 544-x1 |
.347"
.341" |
262°
262° |
107°
100° |
Reproduction of A-65 cams
with timing retarded 3°
for better top end |
24 btc/58 abc
51 bbc/31 atc |
.006"
.007" |
358.00 |
call |
| 544-x2 |
.354"
.354" |
266°
266° |
106°
106° |
Improved mid-range
and top-end pull |
27 btc/59 abc
59 bbc/27 atc |
.005"
.007" |
358.00 |
call |
| 544-x3 |
.400"
.400" |
280°
280° |
103°
103° |
Road race. Improved
mid-range and top-end.
Use racing springs & pistons |
37 btc/63 abc
63 bbc/37 atc |
.008"
.008" |
358.00 |
call |
| 544-x4 |
.380"
.380" |
244°
244° |
106°
106° |
Better mid-range response,
torque and acceleration |
16 btc/48 abc
48 bbc/16 atc |
.006"
.008" |
358.00 |
call |
| 544-x5 |
.349"
.343" |
262°
262° |
103°
103° |
Copy of stock 67-357 cam |
28 btc/54 abc
54 bbc/28 atc |
|
358.00 |
call |
B-50
250
441
500
singles |
Hardfaced Megacycle cams on new billet cores. (Send cam with gear on)
Must specify keyway width; narrow (1/8") or wide (5/32")
Journal diameter: both ends same (.747") or 1 small, 1 large (.558" / .747") |
| 541-TA |
Grind tappet on customer core, cost each (or use BSA B-40 SS tappets) |
29.00 |
call |
| 505-T |
R/D Spring kit with titanium tops for B-50MX |
102.00 |
call |
| 504-T |
R/D Spring kit with titanium tops for 441 |
102.00 |
call |
| 512-T |
R/D Spring kit with titanium tops for 250 B25 |
102.00 |
call |
| 541-x8 |
.358"
.358" |
270°
270° |
104°
104° |
TT style power. Good mid-range
some added top. Best off-road
cam. 3/4 radiused tappet. |
31 btc/59 abc
59 bbc/31 atc |
.008"
.008" |
269.00 |
call |
| 541-x1 |
.400"
.400" |
268°
268° |
103°
103° |
Must use modified piston &
springs. Good for 1/4 mile &
off-road. 3/4 radiused tappet. |
31 btc/57 abc
57 bbc/31 atc |
.008"
.008" |
269.00 |
call |
| 541-x2 |
.400"
.400" |
282°
282° |
105°
105° |
Must use modified piston &
springs. Short course road-race
with tight infield corners.
3/4 radiused tappet. |
36 btc/66 abc
66 bbc/36 atc |
.010"
.010" |
269.00 |
call |
| 541-x4 |
.400"
.400" |
282°
282° |
108°
108° |
Best road-race profile
Mid-range, max top-end. Race
only. 3/4 radiused tappet. |
33 btc/69 abc
69 bbc/33 atc |
.010"
.010" |
269.00 |
call |
| 541-20 |
.397"
.397" |
284°
284° |
105°
105° |
Good mid-range & top-end.
Use racing pistons and springs.
Flat tappet |
37 btc/67 abc
67 bbc/37 atc |
.008"
.008" |
269.00 |
call |
Goldstar
500 |
Hardfaced Megacycle cams, per pair on customer cores. |
| 511-T |
R/D valve spring kit with titanium tops up to 1963. |
| 543-x2 |
.428"
.428" |
264°
264° |
100°
104° |
Road race profile. Use
modified piston and springs.
Better mid and top-end. |
32 btc/52 abc
56 bbc/28 atc |
.006"
.008" |
398.00 |
call |
| 543-x1 |
.444"
.403" |
304°
284° |
106°
106° |
Stock intake #65-2442
Stock exhaust #65-2246 |
|
.006"
.006" |
398.00 |
call |
| 543-x6 |
.397"
.433" |
270°
272° |
103°
103° |
Roller profile |
|
|
398.00 |
call |
| 543-x7 |
.433"
.433" |
272°
272° |
|
Roller profile. H & C 1412 |
|
|
398.00 |
call |
Twin
A-50
A-65
A-70 |
Hardfaced Megacycle cams on new billet cores. |
| 542-TA |
Re-radius tappets on customer core, cost each. |
21.00 |
call |
| 509-T |
R/D Spring kit with titanium tops for A-65 |
179.90 |
call |
| 542-00 |
.347"
.341" |
262°
262° |
107°
100° |
Reproduction of stock A-65
cam with timing retarded 3°
for more top-end. |
24 btc/58 abc
51 bbc/31 atc |
.006"
.007" |
332.00 |
call |
| 542-x2 |
.356"
.356" |
276°
276° |
106°
106° |
Improved mid-range. OK with
stock pistons, springs
& tappets. |
32 btc/64 abc
64 bbc/32 atc |
.005"
.007" |
332.00 |
call |
| 542-x12 |
.375"
.375" |
274°
274° |
102°
103° |
Best road-race cam. Use high
perf. pistons & R/D valve
springs. Strong mid & top-end. |
35 btc/59 abc
60 bbc/34 atc |
.010"
.012" |
332.00 |
call |
| 542-x3 |
.380"
.380" |
244°
244° |
106°
106° |
Mid-range throttle response,
torque. Use modified pistons
& springs. |
16 btc/48 abc
48 bbc/16 atc |
.006"
.008" |
332.00 |
call |
| 542-x1 |
.400"
.400" |
280°
280° |
103°
103° |
Road-race profile. Mid-range &
top-end power. Use racing
pistons & springs. |
37 btc/63 abc
63 bbc/37 atc |
.008"
.008" |
332.00 |
call |
| 542-x8 |
.400"
.400" |
290°
290° |
103°
103° |
Full race profile. High RPM
power. Sifton 460 reproduc. |
42 btc/68 abc
68 bbc/42 atc |
.008"
.010" |
332.00 |
call |
