Basic Camshaft Guidelines
“Real” Chrysler Hydraulic Flat Tappet Camshafts
|
Camshaft P/N Small Block/
Big Block
|
Intake duration
@.050” tappet lift
|
SB
|
BB
|
General engine/chassis requirements
|
|
AZH0515AL/
0515BL
|
205°
|
IDLE
To
3500
|
IDLE to
3500
|
Very stock engine, 2 bbl or small 4 bbl carb, single or
dual exhaust. Light duty or stop and
go driving . High rear gears. 145 psi cylinder pressure. More torque for stock engines.
|
|
AZH1019AL/
1019BL
|
210°
|
IDLE
To
4200
|
IDLE
To 4200
|
Light to medium towing or RV, street 4x4, dual exhaust, 2
bbl or 4 bbl carb. 150psi suggested cylinder pressure, stock idle. Lots of low end torque for heavy vehicles
or medium towing.
|
|
AZH1523AL/
1523BL
|
215°
|
1200
To
4800
|
IDLE
To 4800
|
Light car, mild street: medium to heavy towing or RV. Duel exhaust or headers, 4bbl carb. Street
gearing 3.00 to 3.55:1. 150psi
suggested cylinder pressure. Good
idle, resto/cruiser. Hot daily
driver, mileage OK.
|
|
AZH1928AL/
1928BL
|
219°
|
1400
To
5200
|
IDLE
To 5200
|
First step in to mild street performance. For HP
restoration engines. Dual exhaust or
headers, bbl carb. Street gearing
3.00 to 3.55.1. 155psi suggested
cylinder pressure. Good idle,
resto/cruiser. Hot daily driver.
|
|
AZH2328AL/
2328BL
|
223°
|
1600
To
5700
|
2000
To 5800
|
Mild street performance, hot resto., HP exhaust or
headers, performance intake, 4 bbl or 3x2.
3.55:1+gear. Some idle,
performance head work, HP ported Stage I heads, 165psi suggested cylinder
pressure. Hotter daily driver.
|
|
AZH2832AL/
2832BL
|
228°
|
2000
To
5900
|
IDLE
To 3600
|
Street performance and strip: HP exhaust or headers,
performance intake 3.70:1 + gears, 4bbl or 3x2, Idles so you know its in
there. HP ported Stage I heads 160psi
suggested cylinder pressure 2800rpm + stall.
Very hot daily driver
|
|
AZH3237AL/
3237BL
|
232°
|
2200
To
6000
|
2100
To 6000
|
Hotter Street performance and strip: HP exhaust or headers, performance intake
3:70:1+gears, 4bbl or 3x2. Idles so you know its in there. HP ported Stage I heads 160 psi suggested
cylinder pressure 2800 rpm + stall.
Very hot daily driver.
|
|
AZH3742AL/
3742BL
|
237°
|
2400
To
6400
|
2400
To 6200
|
Serious street and strip: oval track, mud racers. 3.91:1.
gears, noticeable idle, 3000 rpm + stall.
High rise dual plane, 3x2 or small single plane intake, headers
required. Stage I or II HP ported
heads. 170psi suggested cylinder
pressure.
|
|
AZH4246AL/
4246BL
|
242°
|
3000
To
6600
|
2600
To 6400
|
Serious street, and strip. 3400 rpm+stall. 4.10:1
gear. Single plane or 2x4
intake. Headers required. Stage II HP ported heads. 180psi suggested cylinder pressure. Hot street for stroker engines.
|
|
AZH4650AL/
04650BL
|
246°
|
3000
To
6600
|
2600
To 6500
|
Strip. 3400rpm+stall.
4.10:1 gear. Single plane or
2x4 intake. Headers required. Stage II HP ported heads. 180psi suggested cylinder pressure. Hot street for stroker engines.
|
|
AZH5055AL/
5055BL
|
250°
|
3200
To
6800
|
2800
To 6600
|
Use where rules demand a hydraulic camshaft. 3800 rpm+stall. 4.56:1 gear, large single plane or 2x4 intake. Stage II or Stage III HP ported
heads. 200psi suggested cylinder
pressure. Street/Strip for stroker
engines.
|
|
AZH5561AL/
5561BL
|
255°
|
3400
To
7000
|
3000
To 7000
|
Use where rules demand a hydraulic camshaft. 4000rpm+stall. 4.56:1 gear, large single
plane or 2x4 intake. Stage II or
Stage III HP ported heads. 220psi
suggested cylinder pressure.
Street/Strip for 500ci stroker engines.
|
Note: With any
hydraulic camshaft larger than our AZH 1523AL/BL grind, we strongly encourage
using adjustable rocker arms. The
stock, stamped rockers do not have a true 1.5:1 ratio. They will check somewhere between 1.38:1 and
1.45:1 ratio. This will yield a loss of
lift(up to .045:”), 2°/3° duration
loss and also slow the rate-of-lift resulting in a possible 25HP loss. Any camshaft using double valve springs must
use adjustable rocker arms to prevent damage when the stock rocker arms break.
Power Ranges: These are the “sweet spot” in the
power range. Generally we suggest
shifting at 300-500 RPM above the “sweet spot” for the best ET’s. If you need more power above the shown power
range, select the next larger
camshaft. If you need more power below
the shown power range, select the next smaller camshaft. If you keep your foot in it, they will pull
well past their sweet spot.
Spring Warning: Our camshafts are not comparable
to other manufacturers and require special valve spring pressures to operate
and live satisfactorily. ONLY USE our
springs, most other springs will not work properly and may cause severe damage.
Basic Camshaft Guidelines
Hydraulic
Roller Camshafts, LA and Magnum Engines
|
Camshaft P/N
Small Block
|
Intake duration
@.050” tappet lift
|
Power Range
|
General
Engine/ chassis requirements
|
|
AZR9204AL
|
192°
|
IDLE to 4600
|
Extra power to towing, no computer change required, works
well with Stage I billet throttle body.
|
|
AZR0814AL
|
208°
|
IDLE to 5500
|
Step up from factory R/T camshaft, more power, wider power
band. Computer change required for
5.2L V8. Stage I billet throttle
body.
|
|
AZR1418AL
|
214°
|
1400 to 5800
|
Mild Street, works well with stock heads, Stage I billet
throttle body and headers. 5.2/5.9L
V8 requires computer change. Good
super charger camshaft.
|
|
AZR1828AL
|
218°
|
1800 to 6100
|
Computer change needed for 5.2L/5.9L V8. Hot street, likes
Stage II billet throttle body, intake manifold, R/T heads, roller rockers 24
injectors, 420 HP potential at the flywheel.
|
|
AZR2228AL
|
222°
|
2000 to 6300
|
Street/strip, Stage I R/T heads, Stage II billet throttle
body, intake manifold, headers, 2800+RPM stall, programmable computer, inline
fuel pump, 460+HP potential at flywheel.
|
|
AZR2836AL
|
228°
|
2300 to 6600
|
Serious street/strip, 490+HP at rear wheels potential
Stage II R/T heads, Stage II Billet thottle body, M1 2 bbl modified intake
manifold. Good fuel system and
programmable, 3200+RPM stall.
|
|
AZR3644AL
|
236°
|
2600 to 6800
|
Strip and limited street use, R/T Stage II heads, Stage
III Billet throttle body, modified M/P 2bbl intake manifold, programmable
computer good fuel system, 3400+RPM stall.
500+HP potential at flywheel.
|
Power Ranges:
These are the “sweet spot” in the power range. Generally we suggest shifting at 300-500 RPM above the “sweet
spot: for the best ET’s. If you need
more power above the shown power range, select the next larger camshaft. If you need more power below the shown power
range, select the next smaller camshaft.
If you keep your foot in it, they will pull well past their sweet spot.
Spring Warning:
Our Camshafts are not comparable to other manufacturers and require
special valve spring pressures to operate and live satisfactorily. ONLY USE our springs, most other springs
will not work properly and may cause severe damage.
Small Block – Hydraulic Flat
Tappet
|
Grind Number
|
Valve
Lift 1.5
|
Valve
Lift 1.6
|
Camshaft Size Duration at .050” tappet lift
|
Lobe
Separation
Angle
|
Opening at
.050” tappet lift
|
Closing at .050” tappet lift
|
|
AZH0510AL
|
INT. .446”
EXH. .470
|
INT. .475”
EXH. .501
|
205°
215°
|
114°
|
-8.5° BTC
44.5° BBC
|
33.5° ABC
-9.5° ATC
|
|
AZH1019AL
|
INT. .461”
EXH. .489
|
INT. .491”
EXH. .522
|
210°
219°
|
112°
|
-4° BTC
44.5° BBC
|
34° ABC
-5.5° ATC
|
|
AZH1523AL
|
INT. .470”
EXH. .506
|
INT. .501”
EXH. .539
|
215°
223°
|
112°
|
-1.5° BTC
46.5° BBC
|
36.5° ABC
-3.5° ATC
|
|
AZH1928AL
|
INT. .489”
EXH. .524
|
INT. .522”
EXH. .558
|
219°
228°
|
111°
|
1.5° BTC
48° BBC
|
37.5° ABC
0° BTC
|
|
AZH2328AL
|
INT. .506”
EXH. .524
|
INT. .539”
EXH. .558
|
223°
228°
|
111°
|
3.5° BTC
48° BBC
|
39.5° ABC
0° ATC
|
|
AZH2832AL
|
INT. .524”
EXH. .540
|
INT. .558”
EXH. .576
|
228°
232°
|
110°
|
7° BTC
49° BBC
|
41° ABC
3° ATC
|
|
AZH3237AL
|
INT. .540”
EXH. .548
|
INT. .576”
EXH. .584
|
232°
237°
|
110°
|
9° BTC
51.5° BBC
|
43° ABC
5.5° ATC
|
|
AZH3742AL
|
INT. .548”
EXH. .555
|
INT. .584”
EXH. .592
|
237°
242°
|
108°
|
13.5° BTC
52° BBC
|
43.5° ABC
10° ATC
|
|
AZH4246AL
|
INT. .555”
EXH. .569
|
INT. .592”
EXH. .606
|
242°
246°
|
108°
|
16° BTC
54° BBC
|
46° ABC
12° ATC
|
|
AZH4650AL
|
INT. .569”
EXH. .576
|
INT. .606”
EXH. .614
|
246°
| | |
