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post #1 of 6 (permalink) Old 07-26-2012, 08:03 PM Thread Starter
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A 460 heads

Need to know if any special machine has to be done to these heads for Shaft mount rockers
they are straight out of the box any help appreicated. thanks
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post #2 of 6 (permalink) Old 07-26-2012, 09:14 PM
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Answer,,,,no special machine work required on the new style TFS A-460 18 bolt heads. They have elongated slots for pushrod holes.

All other heads need to have the pushrod hole slotted and moved in the direction of the intake manifold, about .280" to .300". When you do this, the intake pushrod holes will get dang close to the valve cover gasket rail.

Hope this helps,

Charlie Evans
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post #3 of 6 (permalink) Old 07-26-2012, 09:40 PM
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Here is a good thread started by Charlie on the shaft rockers for A460's:
http://www.429-460.com/t10619-shaft-mounted-rocker-arms

Also just wanted to add that my A460 deal has done fine without shaft rockers to this point. 2 engines, 588 and 598. Both used Crower SS stud mount rockers, 7/16 pushrods (598) and Jomar stud girdles. Studs and girdles have worked great on both of mine for the rpm range that the heads and cam worked in.


86 T-Bird chassis car
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Alky injected BBF

Last edited by David Cole; 07-26-2012 at 09:43 PM.
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post #4 of 6 (permalink) Old 07-27-2012, 11:57 AM
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Quote:
Originally Posted by David Cole View Post
Studs and girdles have worked great on both of mine for the rpm range that the heads and cam worked in.
What might that range be?

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post #5 of 6 (permalink) Old 07-27-2012, 12:59 PM
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Quote:
Originally Posted by ShadowMaster View Post
What might that range be?
On motor about 7300, on the spray a touch over 7500. Converter too loose for the spray. lol

86 T-Bird chassis car
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post #6 of 6 (permalink) Old 07-28-2012, 08:12 PM Thread Starter
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Thanks Charlie it is alot of help.
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