Motorsport A460

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Motorsport A460

Post  Mark Laczo on November 10th 2012, 4:48 pm

Looking for some general information for a possible project.

What are the flow capabilities of the early or first A460 motorsport heads from Ford.
Did they have 2.30" Intake valves or 2.35" ? I understand out of the box they were in the 380ish flow range. What is possible and what kind of horsepower numbers could they generate in a mid 500" cube 14+ comp ratio & solid roller ? What cc were the chambers supposed to be ?

Thank for any info.
Mark
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Re: Motorsport A460

Post  c.evans on November 10th 2012, 5:03 pm

Mark,

This sounds like a question for the old gray haired guys like me. Anyway, back in the day, we had to work pretty dang hard in order to get 435- 440 cfm out of the intakes. The short side radius always needs a lot of help. Intake valves would have been either way, 2.300" and 2.350". They also featured 1.940" or 1.900" exhaust valves, and we have since learned that they don't need to be that big. 1.880" is just fine. You need to carefully measure the i.d. of your current seats, and do not let them be bigger than 91.5% of the valve head's diameter.

Charlie

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Re: Motorsport A460

Post  Lem Evans on November 10th 2012, 6:42 pm

They did not come complete so they had whatever was installed in them. There were 2.250" and 2.400" available also.

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Re: Motorsport A460

Post  cool40 on November 11th 2012, 12:01 am

i got 435 cfm out of mine with 2.3 valve.the ex did 300 easy with 1.880. Smile
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Post  Mark Laczo on November 11th 2012, 11:43 am

Thanks fella's, thats exactly what I was looking for.

I just happen to have a set of Ti Intake valves that may work in these.
Now I wonder who has the experience so I could get a set of these heads ported and set up ? Hmmmm

Later Mark
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