A460 vs standard physical size?

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A460 vs standard physical size?

Post  windsor on July 27th 2013, 9:47 pm

Anyone have a side-by-side picture of an A460 and an SCJ/P51 cylinder head? Just for comparison sake.

Thanks.
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Re: A460 vs standard physical size?

Post  Wheelie58 on July 27th 2013, 10:01 pm

windsor wrote:Anyone have a side-by-side picture of an A460 and an SCJ/P51 cylinder head?  Just for comparison sake.

Thanks.
I can take some pictures tomorrow......
Any certain shots you would like? Ends....exhaust side...intake side...
Keith
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Re: A460 vs standard physical size?

Post  Wheelie58 on July 28th 2013, 8:43 am

This is a Blue Thunder head with the Ford exhaust pattern lined up with a Trick Flow A460 casting.
Physical size.....the valve cover rail is roughly 1-1/4" taller on the A460.
I have no experience with the P51, but it should be close to the Blue Thunder type shown...as far as general external dimensions..
Hope this helps...
Keith
PS....I just measured a stock cast iron head and the valve cover rail on the exhaust side is only (approx) .300" lower than the Blue thunder...,so they are pretty close to OE external physical size.

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Re: A460 vs standard physical size?

Post  windsor on July 28th 2013, 10:53 am

Thanks so much Keith. That's useful. Only other shot would be from above and width, like the end of both heads. Maybe not so close up to get an overall sense of how much bigger.

Thanks again!
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Re: A460 vs standard physical size?

Post  cool40 on July 28th 2013, 11:31 am

I'm sure Keith will get you some pics.you can see the ex runner is a lot higher than a cj as is the intake.the A head is very little if any wider than a cj,everthing is just higher up in the head.they do bolt on the same place just take longer bolts.you can use the long bolts from a cj head for short bolts in the A heads,lol. Idea 
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Re: A460 vs standard physical size?

Post  rmcomprandy on July 28th 2013, 11:43 am

If it is an inch and a quarter taller and the valve cover is at the same angle it will be an inch and a quarter wider.

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Re: A460 vs standard physical size?

Post  Wheelie58 on July 28th 2013, 12:29 pm

windsor wrote:Thanks so much Keith.  That's useful. Only other shot would be from above and width, like the end of both heads. Maybe not so close up to get an overall sense of how much bigger.

Thanks again!
I lined up the intake surfaces for the sake of this picture.
Of course the head bolt pattern, valve cover bolt pattern are the same. The 18 bolt A460 head is about 1/4 wider at the deck for the additional bolts.
The pic is deceiving, since the aftermarket folks get creative with the actual valve cover gasket flange profile. I many cases, that is to help clear larger springs, rockers and such.
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Re: A460 vs standard physical size?

Post  windsor on July 28th 2013, 6:25 pm

Nice. Perfect! Really appreciate you doing that. I'm sure I'm not the only one. cheers 
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Re: A460 vs standard physical size?

Post  Wheelie58 on July 28th 2013, 7:53 pm

If you are contemplating stepping in to the A460 world, I have a mock up casting that you can borrow.
Thanks
Keith
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Re: A460 vs standard physical size?

Post  soupbean on July 31st 2013, 1:02 am

Did you take apart the 514 Keith?
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Re: A460 vs standard physical size?

Post  Wheelie58 on July 31st 2013, 9:58 am

soupbean wrote:Did you take apart the 514 Keith?
Nope...it is still sitting in the corner. I was contemplating selling it complete with the Blue Thumders...
Rather than putting some of my A heads on it.
Just got a new batch of Eliminator blocks and might build another big bore engine...little more arm. 652 or 669".
Keith
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Re: A460 vs standard physical size?

Post  windsor on July 31st 2013, 2:15 pm

Wheelie58 wrote:If you are contemplating stepping in to the A460 world, I have a mock up casting that you can borrow.
Thanks
Keith

I'd definitely take you up on that. Will shoot you a PM.
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Re: A460 vs standard physical size?

Post  soupbean on July 31st 2013, 9:15 pm

Wheelie58 wrote:
soupbean wrote:Did you take apart the 514 Keith?
Nope...it is still sitting in the corner. I was contemplating selling it complete with the Blue Thumders...
Rather than putting some of my A heads on it.
Just got a new batch of Eliminator blocks and might build another big bore engine...little more arm. 652 or 669".
Keith

How's the 618 doing? Any new et's?
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