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CAMS FOR SHOVEL, PAN, KNUCKLE
Whether you want a better street cam for a stock motor, a big
lift cam for a dragster or something in between, Andrews Products can supply it.
All of our cams for these engines are computer designed and precision ground
from alloy steel billets. Rocker arm ratios are:
•Shovel: 1.42
•Pan: 1.50
•Knuckle: 1.00
CAMS FOR STREET AND DRAG APPLICATIONS
(*)Timing listed at .053 cam lift. (**)TDC Shovel lift
listed: Pan lift will be 5% higher!
| Part # |
Year
|
Grind
|
Timing
|
Duration
.053 .020
|
Valve Lift
Shov Pan
|
Lift@
TDC |
Application |
| STOCK |
(Front Cyl) |
H |
-06/46
44/20 |
220
244 |
256
282 |
.390
.390 |
.412
.412 |
.051
.176 |
Stock H/D front cylinder timing listed for comparison. Later
stock "S" grind cams have similar specs. |
| STOCK |
(Rear Cyl) |
H |
14/38
44/20 |
232
244 |
274
282 |
.390
.390 |
.412
.412 |
.129
.176 |
Stock H/D rear cylinder timing listed for comparison. Later
stock "S" grind cams have similar specs. |
212011
212020
212030 |
(48-69)
(70-77)
(78-84) |
J |
21/41
41/21 |
242
242 |
292
292 |
.405
.405 |
.425
.425 |
.154
.154 |
Mild street: Pans and shovels, smooth idle, more power
through RPM range. Bolts in with no head work. |
212270
212280
212290 |
(48-69)
(70-77)
(78-84) |
A |
21/43
43/21 |
244
244 |
296
296 |
.450
.450 |
.470
.470 |
.156
.156 |
Street/drags: Bolts into Shovels (except 1980-1981) with no
head work. More mid-range and high end power. Idle smoothness unaffected. |
212310
212320
212325 |
(48-69)
(70-77)
(78-84) |
AB |
21/43
50/26 |
244
256 |
286
300 |
.450
.450 |
.470
.470 |
.156
.170 |
"A" intake and a long duration exhaust for cooler running
and more high end power. Bolt-in street cam (except for 1980-1981). OK for
hydraulic lifters |
212360
212370
212380 |
(48-69)
(70-77)
(78-84) |
B |
26/50
50/26 |
256
256 |
298
298 |
.485
.485 |
.507
.507 |
.182
.182 |
Street/drags: Much more mid-range and high end power. Idle
smoothness unaffected. THE cam for modified 74/80 inchers and small strokers.
Spring spacing required. |
212420
212430
212440 |
(48-69)
(70-77)
(78-84) |
BH |
24/52
52/24 |
256
256 |
302
302 |
.450
.450 |
.470
.470 |
.156
.156 |
Hydraulic version of a "B" cam. Usually a bolt-in but spring
spacing may be required on 1980-1981 shovels. |
212510
212520
212530 |
(48-69)
(70-77)
(78-84) |
6 |
32/56
32/56 |
268
268 |
325
325 |
.510
.510 |
.535
.535 |
.190
.190 |
Hotter version of B grind. Great street cam especially for
84'88 inch strokers: maximum torque available from 2500-6500 RPM |
212600
212610
212620 |
(48-69)
(70-77)
(78-84) |
C |
37/61
61/37 |
278
278 |
318
318 |
.525
.525 |
.550
.550 |
.234
.234 |
Best production cam made for big street engines. Strokers
from 84-96 inches will really turn on this cam. Broad torque range pulls
from 2000-7000 RPM. |
J, A, AB, B, BH, 6, C
$173.00
CAMS FOR LOW COMPRESSION ENGINES (Less than 8:1)
(**)TDC Shovel lift listed: Pan lift will be 5% higher!
| Part # |
Year
|
Grind
|
Timing
|
Duration
.053 .020
|
Valve Lift
Shov Pan
|
Lift@
TDC |
Application |
212130
212140
212150 |
(48-69)
(70-77)
(78-84) |
1 |
16/36
36/16 |
232
232 |
288
288 |
.427
.427 |
.450
.450 |
.098
.098 |
This is the low compression piston version of an "A" grind
cam for 74-80 engines with 7.5 to 1 pistons |
212330
212340
212350 |
(48-69)
(70-77)
(78-84) |
2 |
15/35
35/15 |
230
230 |
288
288 |
.490
.490 |
.512
.512 |
.098
.098 |
Low compression piston version of a "B" grind cam. More
power through RPM range for engines with 7.5 pistons |
212630
212640
212650 |
(48-69)
(70-77)
(78-84) |
3 |
23/43
23/43 |
246
246 |
304
304 |
.514
.514 |
.540
.540 |
.125
.125 |
High lift, short duration cam for motors with 84+ inches.
More power for strokers with 7.5 compression ratios. |
1, 2, 3 $173.00
HI PERFORMANCE AND DRAGSTER CAMS (SHOVEL)
| Part # |
Year
|
Grind
|
Timing
|
Duration
.053 .020
|
Valve Lift
Shovel
|
Lift@
TDC |
Application |
212740
212750
212760 |
(66-69)
(70-77)
(74-84) |
M |
28/56
56/28 |
264
264 |
309
309 |
.590
.590 |
.210
.210 |
Street/Drags: 88+ inch motors, maximum mid-range torque cam.
3000/6500 RPM. OK for low compression pistons on street. Andrews springs and
collars make installation easy. |
212850
212860
212870 |
(66-69)
(70-77)
(74-84) |
9 |
32/64
64/32 |
276
276 |
320
320 |
.530
.530 |
.222
.222 |
Drags: Broad tip design for maximum mid-range power for
strokers from 88 inches and larger. Requires Andrews springs and collars for
head set up and installation. |
212890
212900
212910 |
(66-69)
(70-77)
(74-84) |
10 |
34/70
70/34 |
284
284 |
344
344 |
.580
.580 |
.230
.230 |
Maximum output dragster cam for BIG motors from 92 inches
and up. This cam is for best torque up to 6500 RPM. Requires Andrews springs
and collars. |
M, 9, 10
$242.00
KNUCKLE ENGINE CAMS AND "61" PAN CAMS
| Part # |
Year
|
Grind
|
Timing
|
Duration
.053 .020
|
Valve
Lift
|
Lift@
TDC |
Application |
| 212965 |
(36-47) |
N |
14/42
42/14 |
236
236 |
270
270 |
.355
.355 |
.097
.097 |
Stock replacement Knuckle cam. For stock motors and
restorations, this is the cam to use. |
| 212970 |
(36-47) |
S |
27/55
55/27 |
262
262 |
308
308 |
.370
.370 |
.130
.130 |
Bolt-in Knuckle performance cam for stock motors, smooth
idle, strong pull to 6000 RPM. This cam is the Knuckle equivalent of a "B"
cam in a shovel motor. |
| 212980 |
(36-47) |
K |
35/63
63/36 |
278
278 |
318
318 |
.367
.367 |
.156
.156 |
Bolt-in high performance Knuckle. Works best with 9.5 or
higher compression pistons and/or stroker flywheels. Broad power band,
3000/7000 RPM. |
| 212960 |
(48-51) |
61 |
-02/26
26/-02 |
204
204 |
244
244 |
.345
.345 |
.072
.072 |
Replacement cam for stock 61 cubic inch Pan head engine.
With an unusual piston and rod setup, "61" engines need this special short
duration cam to run properly. |
N, S, K, 61
$174.50
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