 |
|
SPECIFICATIONS |
|
|
DURATION @ .053” |
GROSS VALVE |
|
OPEN/CLOSEa |
LIFT |
SERIES & |
INT. |
EXH. |
INT. |
EXH. |
GRIND |
VT No. |
Price |
Year |
|
|
|
|
NUMBER |
TYPE & APPLICATION |
10-8252 |
$145.00 |
1948-69 |
248 |
248 |
.455b |
.455b |
Hydraulic |
HYDRAULIC - Bolt-in. Broad power range for streetable
performance.Works |
10-8253 |
$145.00 |
1970-77 |
24/44 |
44/24 |
.479c |
.479c |
300H |
Fireball well with stock compression or increased up
to 10:1. Low and mid range |
10-8254 |
$145.00 |
1978-84 |
|
|
|
|
|
improvement. Does not require valve spring change.Works
well with stock carb |
|
|
|
Cam lift at TDC: Int: .126” Exh: .130”* |
and exhaust or performance parts. |
10-4380 |
$145.00 |
1948-69 |
244 |
244 |
.455b |
.455b |
Fireball |
MECHANICAL - Bolt-in performance throughout the power
range. Also |
10-4381 |
$145.00 |
1970-77 |
20/44 |
44/20 |
.479c |
.479c |
296A |
recommended for increased torque in heavy bikes with
heavy loads. No spring |
10-4382 |
$145.00 |
1978-84 |
|
|
|
|
|
change required.Works well with stock carb and exhaust.
Does not have Cranes |
|
|
|
Cam lift at TDC: Int: .108” Exh: .108”* |
multi-indexed gear. Replaces A. |
10-4383 |
$115.00 |
1948-69 |
256 |
256 |
.490b |
.490b |
Fireball |
MECHANICAL - Performance cam. Can be used with stock
compression but |
10-4384 |
$145.00 |
1970-77 |
26/50 |
50/26 |
.516c |
.516c |
308B |
works well with 10.5:1 compression ratio. Mid range
and top end improvement. |
10-4385 |
$145.00 |
1978-84 |
|
|
|
|
|
Heads must be clearanced and may require valve spring
change to install.Works |
|
|
|
Cam lift at TDC: Int: .129” Exh: .129”* |
well with performance exhaust, carb and cylinder head
work. |
|
|
|
|
|
|
|
|
Replaces B. |
|
|
|
244 |
244 |
.450b |
.450b |
Hydraulic |
HYDRAULIC - Bolt-in performance throughout the power
range, Also recom- |
10-4357 |
$145.00 |
1970-77 |
22/42 |
42/22 |
.474c |
.474c |
Hi-Roller |
mended for increased torque in heavy bikes with heavy
loads. No spring |
10-4364 |
$143.00 |
1978-84 |
Cam lift at TDC: Int: .125” Exh: .128”*H288B |
change required.Works well with stock carb and exhaust. |
|
|
1948-69 |
244 |
254 |
.450b |
.450b |
Hydraulic |
HYDRAULIC - Mild performance. Can be used with stock
springs, carb and |
10-4358 |
$145.00 |
1970-77 |
18/46 |
51/23 |
.474c |
.474c |
Hi-Roller |
exhaust or performance systems. Increased horsepower
throughout RPM |
10-4365 |
$143.00 |
1978-84 |
Cam lift at TDC: Int: .110” Exh: .132”*
H288-2B |
range. |
10-4352 |
$145.00 |
1948-69 |
254 |
264 |
.450b |
.450b |
Hydraulic |
HYDRAULIC - Performance can be used with performance
type carb and |
10-4359 |
$143.00 |
1970-77 |
25/49 |
62/22 |
.474c |
.474c |
Hi-Roller |
exhaust. Increased mid-range and top end horsepower.
Check valve-to-valve |
10-4366 |
N/A |
1978-84 |
Cam lift at TDC: Int: .137” Exh: .128”*
H298-2B |
clearance. |
|
|
1948-69 |
252 |
252 |
.450b |
.450b |
Hi-Roller |
MECHANICAL - Bolt-in mild performance. Can use stock
springs, carb and |
10-4361 |
N/A |
1970-77 |
24/48 |
48/24 |
.474c |
.474c |
H298B |
exhaust. Increased mid-range and top end horsepower.
No increase in com- |
10-4368 |
N/A |
1978-84 |
Cam lift at TDC: Int: .124” Exh: .124”* |
precision ratio required. |
10-4353 |
N/A |
1948-69 |
262 |
262 |
.450b |
.450b |
Hi-Roller |
MECHANICAL - Mild performance.Works well with high
performance carb and |
10-4360 |
$145.00 |
1970-77 |
29/53 |
53/29 |
.474c |
.474c |
H298B |
exhaust system. Can use stock springs, but check valve-to-valve
clearance. |
10-4367 |
N/A |
1978-84 |
Cam lift at TDC: Int: .140” Exh: .140”* |
|
10-4356 |
$145.00 |
1948-69 |
266 |
266 |
.525b |
.525b |
Hi-Roller |
MECHANICAL - High performance street and drags. Increased
compression |
10-4363 |
N/A |
1970-77 |
31/55 |
55/31 |
.553c |
.553c |
310B |
ratio and/or cubic inches required. Must change valve
springs and check |
|
|
1978-84 |
Cam lift at TDC: Int: .152” Exh: .155”* |
spring travel, piston-to-valve, and valve-to-valve
clearances. |
10-4355 |
$193.00 |
1948-69 |
268 |
268 |
.485b |
.485b |
Hi-Roller |
MECHANICAL - Streetable high performance. Increased
compression ratio |
10-4362 |
$145.00 |
1970-77 |
32/56 |
56/32 |
.511c |
.511c |
304B |
and/or cubic inches required. Must change valve springs
and check spring |
10-4369 |
$145.00 |
1978-84 |
Cam lift at TDC: Int: .152” Exh: .152”* |
travel, piston-to-valve, and valve-to-valve clearances. |
10-4371 |
$145.00 |
1948-69 |
276 |
276 |
.550b |
.550b |
Hi-Roller |
MECHANICAL - Street and drag cam for high performance
engines. Increased |
10-4372 |
N/A |
1970-77 |
36/60 |
64/32 |
.579c |
.579c |
320B |
cubic inches required for best results. Head work required
for proper spring |
|
|
1978-84 |
Cam lift at TDC: Int: .172” Exh: .160”* |
travel, piston-to-valve, and valve-to-valve clearances. |
10-4374 |
$79.00 |
1948-69 |
286 |
286 |
.575b |
.575b |
Hi-Roller |
MECHANICAL - Drag cam for large cubic engines. Head
work required for |
10-4375 |
$79.00 |
1970-77 |
41/65 |
73/33 |
.606c |
.606c |
330B |
proper spring travel, piston-to-valve, and valve-to-valve
clearances, also to |
10-4376 |
$79.00 |
1978-84 |
Cam lift at TDC: Int: .192” Exh: .164”* |
insure maximum performance. |
|
|
|
|
|
|
|
|
Camshafts having over .450” valve lift in 1948-69
engines, will need to have front |
|
|
|
|
|
|
|
|
exhaust lobe-to-circuit breaker drive gear clearance
checked. |
Camshafts
having over .450” valve lift in 1948-57 engines, will need to
have front intake lobe-to-case clearance checked. *
To convert cam lift to valve lift, multiply the cam lift figure by
the rocker arm ratio: Shovelhead - 1.425; Panhead - 1.5. a
Opening and closing figures for camshafts with the multiple keyway
gear are based on the gear installed in the “0” position.
b Gross valve lift for Shovelhead
with 1.425 rocker arm ratio. c
Gross valve lift for Panhead with 1.5 rocker arm ratio.
Note: All Crane Cams are shipped with red cam gear. |
|
 |
 |