2011 - Crane Cams
2011 - Crane Cams
2011 - Crane Cams
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Aluminum Roller Rockers, Gold Race<br />
Extruded - Stud Mount<br />
Gold Race Extruded Rocker Arms<br />
<strong>Crane</strong> <strong>Cams</strong>’ needle-bearing fulcrum, roller-tip, extruded aluminum rocker arms have been racing’s<br />
most popular aluminum rockers since their introduction in 1964.<br />
Now, over seven million rockers later, the nation’s leading racers and engine builders know<br />
they can trust the strength, ratio accuracy, quality, and reliability of <strong>Crane</strong>’s famous gold anodized,<br />
aluminum rockers.<br />
The heavy duty TR fulcrums are now included in all 7/16” stud gold race extruded rocker arms<br />
at no additional charge!<br />
Custom ratios, offsets, and stud sizes are available. Contact <strong>Crane</strong>’s Performance Consultants for details.<br />
Application Ratio Stud Dia. Part No.<br />
American Motors V-8 66-91, 290-304-343-360 (5.9L)-390-401 cu.in.<br />
Stock ratio and standard stud diameter 1.60 3/8” 36750-16 a<br />
Stock ratio with enlarged stud diameter 1.60 7/16” 86757-16 b<br />
Increased ratio with enlarged stud diameter 1.70 7/16” 36757-16 b<br />
Chevrolet I-6 62-84, 194-230-250-292 cu.in.<br />
Stock ratio and standard stud diameter 1.70 3/8” 20750-12 c<br />
Stock ratio with enlarged stud diameter 1.70 7/16” 13750-12 c<br />
Chevrolet 60° V-6 80-94, 173 (2.8L) and 189 (3.1L) cu.in. Non-Self Aligning, Narrow Body Rocker Arms<br />
Stock ratio with special stud diameter 1.50 3/8” 25750-12 d<br />
Increased ratio with special stud diameter 1.60 3/8” 25759-12 d<br />
Chevrolet 90° V-6 78-86, 200-229 (3.8L) and 262 (4.3L) and<br />
Chevrolet V-8 55-87, 262-267-283-302-305 (5.0L)-307-327-350 (5.0L)-400 cu.in. Non-Self Aligning Rocker Arms<br />
Stock ratio and standard stud diameter 1.50 3/8” 11750-16<br />
Stock ratio with enlarged stud diameter, clears 1.630” O.D. springs 1.50 7/16” 11752-16<br />
Stock ratio with enlarged stud diameter, clears 1.630" O.D. springs, new “Wide Body” design for severe usage applications 1.50 7/16" 11771-16<br />
Increased ratio and standard stud diameter 1.60 3/8” 11759-16<br />
Increased ratio with enlarged stud diameter, clears 1.630” O.D. springs 1.60 7/16” 11755-16<br />
Increased ratio with enlarged stud diameter, clears 1.630" O.D. springs, new “Wide Body” design for severe usage applications 1.60 7/16" 11772-16<br />
Eight each of 1.5 (11750) and 1.6 (11759) ratio, with standard stud diameter 1.5/1.6 3/8” 11748-16<br />
Increased ratio and standard stud diameter 1.7 3/8” 70759-16 *<br />
NOTE: The following rocker arms have offset pushrod seat locations and require modification of the pushrod guideplates. Rockers sold individually.<br />
.150” Left Offset, stock ratio with enlarged stud diameter, clears 1.630” O.D. springs 1.50 7/16” 11765L-1<br />
.150” Right Offset, stock ratio with enlarged stud diameter, clears 1.630” O.D. springs 1.50 7/16” 11765R-1<br />
.150” Left Offset, increased ratio with enlarged stud diameter, clears 1.630” O.D. springs 1.60 7/16” 11766L-1<br />
.150” Right Offset, increased ratio with enlarged stud diameter, clears 1.630” O.D. springs 1.60 7/16” 11766R-1<br />
.225” Left Offset, increased ratio with enlarged stud diameter, clears 1.630” O.D. springs 1.60 7/16” 11762L-1<br />
.225” Right Offset, increased ratio with enlarged stud diameter, clears 1.630” O.D. springs 1.60 7/16” 11762R-1<br />
Chevrolet 90° V-6 87-91, 262 (4.3L)<br />
Chevrolet V-8 88-99, 305 (5.0L)-350 (5.7L) cu.in.<br />
Non-Self Aligning, Narrow Body Rocker Arms<br />
For Center Bolt Valve Covers<br />
Stock ratio and standard stud diameter 1.50 3/8” 10750-16e Increased ratio and standard stud diameter 1.60 3/8” 10759-16e Self Aligning, Narrow Body Rocker Arms For<br />
Center Bolt Valve Covers<br />
Stock ratio and standard stud diameter (cannot be used with a mechanical lifter cam) 1.50 3/8” 10751-16f Increased ratio and standard stud diameter (cannot be used with a mechanical lifter cam) 1.60 3/8” 10758-16f *This product is applicable only to pre-1966 California and pre-1968 federally certified passenger cars. It is also applicable to non-emission controlled<br />
trucks and similar vehicles. It is not applicable or intended for use on any emission controlled vehicles operated on highways or roads.<br />
a Must machine 74-91 cylinder heads and install 99156-16 3/8” rocker arm studs and aftermarket<br />
pushrod guideplates. Special order heat treated pushrods are required for use with guideplates.<br />
b Must machine 66-91 cylinder heads and install 99157-16 7/16” rocker arm studs and aftermarket<br />
pushrod guideplates. Special order heat treated pushrods are required for use with guideplates.<br />
c Requires 20622-12 pushrods for 194-230-250 engines.<br />
d For inline valve cylinder heads. Set includes special 10mm x 1.50 bottom x 3/8” x 24 top rocker arm<br />
studs (99148-12), no machining required. Check valve covers and intake manifold for clearance<br />
throughout the lift cycle.<br />
Section Continued<br />
e The 1988-99 engines equipped with self-aligning rocker arms require the installation of pushrod<br />
guideplates (and 99156-16 rocker arm studs, if applicable) and appropriate heat treated pushrods<br />
in order for these rocker arms to function properly. Valve cover clearance must also be checked in<br />
late model applications.<br />
f For use in self-aligning applications. Do not use with pushrod guideplates or with cylinder head<br />
castings that guide the pushrods, as severe pushrod wear will occur. Not for use in LS1 type<br />
engines.<br />
866-388-5120 • 386-236-9983 FAX 317
Change language