2011 - Crane Cams

Aluminum Rocker Arms, Energizer
Energizer Rocker Arms
Die Formed Aluminum Body with Needle Bearing Fulcrum and Roller Tip
*This product is applicable only to pre-1966 California and pre-1968 federally certified passenger cars. It
is also applicable to non-emission controlled trucks and similar vehicles. It is not applicable or intended
for use on any emission controlled vehicles operated on highways or roads.
Application Ratio Stud Dia. Part No.
American Motors V-8 66-91, 290 thru 401
Stock ratio and standard stud diameter 1.60 3/8” 11746-16 a
Stock ratio with enlarged stud diameter 1.60 7/16” 11747-16 b
Chevrolet 90° V-6 78-87, 200 thru 262
Stock ratio and standard stud diameter 1.50 3/8” 11744-12 c
Stock ratio with enlarged stud diameter 1.50 7/16” 11745-12 c
Increased ratio with standard stud diameter 1.60 3/8” 11746-12 c
Increased ratio with enlarged stud diameter 1.60 7/16” 11747-12 c
Chevrolet V-8 55-87, 262 thru 400
Stock ratio and standard stud diameter 1.50 3/8” 11744-16 c
Stock ratio with enlarged stud diameter 1.50 7/16” 11745-16 c
Increased ratio with standard stud diameter 1.60 3/8” 11746-16 c
Increased ratio with enlarged stud diameter 1.60 7/16” 11747-16 c
Chevrolet V-8 65-90, 396-402-427-454-502, also 91-00 454-502 Gen V and VI and 01-08 8.1 Litre
Stock ratio and standard stud diameter 1.70 7/16” 13744-16 d
Chrysler-Dodge-Plymouth 92-00, “Magnum” 318 (5.2L), 360 (5.9L) (except Magnum R/T)
Stock ratio, must use Crane’s stud conversion kit with guideplates (36655-16), and pushrods (36668-16), to convert from the stock
pedestal rocker arm to this adjustable stud mount design. (Optional heat treated pushrods available, part no. 36621-16.) Stock valve
covers must be modified or spaced upward approximately 3/8” to avoid interference 1.60 3/8” 11746-16
Ford V-8 62-00, 221-255-260-289-302-351W
Stock ratio and standard stud diameter 1.60 3/8” 11746-16 e
Stock ratio with enlarged stud diameter 1.60 7/16” 11747-16 f
Ford V-8 77-00, 255-302, 5.0L H.O. and 351W
Increased ratio, pedestal mount type for 77-00 cylinder heads, non-adjustable, secured with 5/16” bolt. For hydraulic lifter, and hydraulic roller
cam applications only. 1.70 5/16” Bolt 44746-16 g
Ford V-8 69-82, Boss 302, Boss 351, 351C-351M-400
Stock ratio and standard Boss stud diameter 1.72 7/16” 27744-16 h
Ford V-8 68-97, 370-429-460
Stock ratio and standard Cobra Jet stud diameter 1.72 7/16” 27744-16 i
Oldsmobile V-8 67-91, 260-307-350-400-403-425-455 cu.in.
Increased ratio for 3/8" straight studs 1.65 3/8” * j 80744-16
Pontiac V-8 67-81, 265 thru 455 with Straight 7/16” Rocker Arm Studs
Increased ratio with enlarged stud diameter. 1.65 7/16” * k 28747-16
a Must machine 74-91 cylinder heads and install 99156-16 3/8” rocker arm studs and aftermarket
pushrod guideplates. Special order heat treated pushrods are required for use with guideplates.
b Must machine 66-91 cylinder heads and install 99157-16 7/16” rocker arm studs and aftermarket
pushrod guideplates. Special order heat treated pushrods are required for use with guideplates.
c The 1988-99 engines equipped with self-aligning rocker arms require the installation of pushrod
guideplates (and 99157-16 7/16” rocker arm studs, if applicable) and appropriate heat treated
pushrods in order for these rocker arms to function properly. Valve cover clearance must also be
checked. Not suitable for use with center-bolt valve covers.
d The 1991-2000 Gen V & VI engines require the installation of 99152-16 7/16” rocker arm studs (no
machining required) & factory pushrod guideplates. For applications w/ over 480 pounds open
valve spring pressure, the cylinder heads must be machined for the installation of 99157-16 7/16”
rocker arm studs & 13650-1 pushrod guideplates. The 2001-2008 8.1L engines require the installation
of 99155-16 7/16” rocker arm studs (no machining required) & factory pushrod guideplates.
e Must machine 66-00 cylinder heads and install 99156-16 3/8” rocker arm studs and 36650-1
pushrod guideplates (heat treated pushrods required), or use 36655-16 Conversion Kit (no
machining required) on 77-00 pedestal mount cylinder heads for street applications.
f Must machine 66-00 cylinder heads and install 99157-16 7/16” rocker arm studs and 36650-1
pushrod guideplates (heat treated pushrods required).
g Includes Rocker Arm Pedestal Shim Kit 99170-1.
h The 351C-351M-400 engines equipped with pedestal mount rocker arms require the use of 52655-
16 Conversion Kit (no machining required) for street applications.
i On 68-71 engines equipped with bottleneck studs, install 99159-16 straight 7/16” studs to permit
valve adjustment. The 72-97 engines equipped with pedestal mount rocker arms can use our
35655-16 Conversion Kit for 3/8” pushrods (no machining required) for street applications.
j Must machine cylinder heads and install 99156-16 3/8” rocker arm studs and aftermarket pushrod
guideplates (special length heat treated pushrods required).
k On engines not equipped with 7/16” rocker arm studs, cylinder head machining is required for the
installation of 99157-16 7/16” rocker arm studs.
NOTE:
Energizer rocker arms are recommended for hydraulic lifter and hydraulic roller camshaft equipped
engines only. Energizer rocker arms with 11 and 44 prefix part numbers will accept a maximum
valve spring dia. of 1.500” and maximum spring pressure of 500 lbs. Energizer rockers with 13, 28,
and 80 prefix part numbers will accept a maximum valve spring diameter of 1.550” and 500 lbs.
maximum spring pressure.
866-388-5120 • 386-236-9983 FAX 315