A460 valve ??

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A460 valve ?? Empty A460 valve ??

Post  56Tbird on May 2nd 2013, 6:38 pm

Can you run a 2.40 intake valve in a Ford Motorsport A460 head with a 4.440 bore??
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Post  Lem Evans on May 2nd 2013, 6:43 pm

56Tbird wrote:Can you run a 2.40 intake valve in a Ford Motorsport A460 head with a 4.440 bore??

Yes, but it aint the preferred way to go.

A little work at the top of the bore would help matters.

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Post  56Tbird on May 2nd 2013, 7:02 pm

A small notch I guess is what your referring to?
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Post  c.evans on May 5th 2013, 1:16 pm

56Tbird wrote:A small notch I guess is what your referring to?

No, no notch required. The exhaust valve is the closest valve to the bore.

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Post  Lem Evans on May 5th 2013, 1:25 pm

A notch is not required...it is to enhance performance.

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Post  56Tbird on May 5th 2013, 11:17 pm

What about the valve relief in the piston? Will it be large enough for the 2.40 intake ?
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Post  dfree383 on May 6th 2013, 12:13 am

56Tbird wrote:What about the valve relief in the piston? Will it be large enough for the 2.40 intake ?

Who's pistions? How big of notch do they have?
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Post  c.evans on May 6th 2013, 1:18 am

56Tbird wrote:What about the valve relief in the piston? Will it be large enough for the 2.40 intake ?

Dan,

J B B has already called me about this twice this past week, so I assume he's talking about your engine. Is that correct?

Anyway, most likely the valve relief in the piston will not be big enough. As a general rule of thumb, your valve relief should always be +.125" bigger in diameter than your valve head diameter. However, it's no problem to flycut your relief bigger with a piston vice and a Bridgeport. Lawes and I have a piston vice and I know J B B has one too.

Hope this helps,
Charlie


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Post  56Tbird on May 6th 2013, 5:55 pm

Yes,it's my engine. I just thought I'd ask on here before bugging him with any unneeded questions. I know he's busy and hate to cut into his shop time.Thanks for all the info.
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Post  richter69 on May 6th 2013, 7:11 pm

why the smaller shortblock?
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Post  bbf-falcon on May 7th 2013, 9:36 am

Because that's the size of the Piston that he has on hand to use. Kind of a swap meet build,that should produce great power w/heads that he has.

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Post  richter69 on May 7th 2013, 10:21 am

those are the best kind of builds lol
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Post  56Tbird on May 10th 2013, 10:57 pm

I been picking up pieces here and there for about 3 years for this thing. I hope it'll get after it,if I ever need it!!Still got a small fortune in it Shocked king
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Post  69F100 on May 10th 2013, 11:48 pm

56Tbird wrote:I been picking up pieces here and there for about 3 years for this thing. I hope it'll get after it,if I ever need it!!Still got a small fortune in it Shocked king


X2 I bought parts as I could for the 552 if I count the heads on it it only took only about a year to get everything and I have some $$$$ in it but not as much if I would have went out and bought everything at once. Very Happy
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