Which 460 Heads require special pistons..

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Which 460 Heads require special pistons..

Post  514F-1 on March 30th 2014, 7:59 pm

I know that A460 heads require special pistons, but do P51's, SCJ's, and Edelbrocks?? Just curious which required a special piston, and which used a standard piston similar to what a factory head would require...sorry for what may be a dumb question, but just trying to learn..
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Re: Which 460 Heads require special pistons..

Post  fordguy69 on March 30th 2014, 8:56 pm

SCJ's and P-51's definitely require unique pistons.

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Re: Which 460 Heads require special pistons..

Post  schmitty on March 30th 2014, 9:22 pm

Actually the SCJ's can be run with dished cast stock piston. Not sure if the P51's will do the same.  If you are going to a flat top or dome, then specific pistons for them are required.  The Eddies are standard valve layout.
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Re: Which 460 Heads require special pistons..

Post  dfree383 on March 30th 2014, 10:05 pm

The p-51s and ford racing Kaase SCJs use the same valve layout.
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Re: Which 460 Heads require special pistons..

Post  514F-1 on March 30th 2014, 10:10 pm

So, basically SCJ's, and P51 heads require the same pistons, and A460's require their own. And Factory, A429 and Edelbrocks are very similar and can use the same pistons..
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Re: Which 460 Heads require special pistons..

Post  dfree383 on March 30th 2014, 10:11 pm

Yep
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Re: Which 460 Heads require special pistons..

Post  514F-1 on March 30th 2014, 10:26 pm

dfree383 wrote:Yep

Cool, got it, thanks!
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Re: Which 460 Heads require special pistons..

Post  rmcomprandy on March 30th 2014, 10:59 pm

fordguy69 wrote:SCJ's and P-51's definitely require unique pistons.

That would really depend upon the size of the camshaft. The valves are far enough up in the head that a specific valve notch is not necessary for a lot of camshafts. Anything under about 238@.050" degrees duration usually does not present any contact problems..

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Re: Which 460 Heads require special pistons..

Post  bbf-falcon on March 31st 2014, 1:13 pm

514F-1 wrote:So, basically SCJ's, and P51 heads require the same pistons, and A460's require their own. And Factory, A429 and Edelbrocks,+bluethunder,and TFS streets are very similar and can use the same pistons..

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