Witch is a better head.

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Witch is a better head.

Post  res0rli9 on April 26th 2016, 7:41 pm

The Yates D3 cylinder heads or Kaase's P-38
witch one will give the most hp & trq. for racing.


Last edited by res0rli9 on May 8th 2016, 9:14 am; edited 1 time in total

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Re: Witch is a better head.

Post  rmcomprandy on April 26th 2016, 9:12 pm

res0rli9 wrote:The Yates D3 cylinder heads or Kaase's P-38
witch one with give the most hp & trq. for racing.

The Yates D3 of course.
The ports are raised a bunch on the D3 and it uses Cleveland rocker arm geometry; the P-38 has O.E.M. production location ports.

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Re: Witch is a better head.

Post  FalconEh on April 26th 2016, 9:46 pm

rmcomprandy wrote:
res0rli9 wrote:The Yates D3 cylinder heads or Kaase's P-38
witch one with give the most hp & trq. for racing.

The Yates D3 of course.
The ports are raised a bunch on the D3 and it uses Cleveland rocker arm geometry; the P-38 has O.E.M. production location ports.

^^^^^^^This^^^^^^^^ A few things to be aware of... pistons, and there are 9.2 and 9.5 deck intakes for them, you can get spacers but be aware of what you are buying, further headers with a raised port design will change, however they will enjoy RPM and NOS is not a problem.Wink
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Re: Witch is a better head.

Post  res0rli9 on April 26th 2016, 9:59 pm

Thanks guys

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Re: Witch is a better head.

Post  bbf-falcon on May 8th 2016, 1:36 am

Randy,i've heard the Yates sbf head referred to as a JR. version of the C460. Is this true?

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Re: Witch is a better head.

Post  rmcomprandy on May 8th 2016, 10:58 am

bbf-falcon wrote:Randy,i've heard the Yates sbf head referred to as a JR. version of the C460. Is this true?

The other way around ... the C460 was designed around the original Yates NASCAR heads.

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Re: Witch is a better head.

Post  bbf-falcon on May 8th 2016, 10:31 pm

rmcomprandy wrote:
bbf-falcon wrote:Randy,i've heard the Yates sbf head referred to as a JR. version of the C460. Is this true?

The other way around ... the C460 was designed around the original Yates NASCAR heads.

Cool

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Re: Witch is a better head.

Post  turbo2256b on May 9th 2016, 10:36 am

Flow tested a Yates head a few years back. Figure they were not fully ported but the big thing was flowing at 360 CFM they were had to be the quietest head I HAVE EVER FLOW TESTED.

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