Headers flange differences

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Headers flange differences

Post  bbfdragster on February 16th 2013, 5:28 pm

Is an a460 exhaust flange the same sne n bolt pattern as a c460 or d460...
Never rsn an a head n wasn't sure.
Thanks
Jason

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Re: Headers flange differences

Post  c.evans on February 16th 2013, 6:22 pm

bbfdragster wrote:Is an a460 exhaust flange the same sne n bolt pattern as a c460 or d460...
Never rsn an a head n wasn't sure.
Thanks
Jason

I'm having a hard time understanding your question (sne n, rsn, n), but the answer is no. They are not the same.

Charlie

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Thank you

Post  bbfdragster on February 16th 2013, 7:05 pm

Sorry... I think I type correct.. But ur answer is wat I thought... Thsnks for verifying Charlie

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Difference

Post  bbfdragster on February 16th 2013, 7:10 pm

Bolt patterns different or center or ports too??
Found a set of a460 headers is was thinking of trying to re flange so I could try s stepped header on the dyno ...
Thanks again guys

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Re: Headers flange differences

Post  79Puller on February 16th 2013, 7:29 pm

I believe the spacing is also different, the C-head is a bit larger

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Re: Headers flange differences

Post  Lem Evans on February 16th 2013, 8:07 pm

The A460 exh is bbc pattern.....c460 is it's own deal.

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Re: Headers flange differences

Post  psfracer on January 6th 2014, 2:08 pm

Is the C460 and profiler exhaust flanges the same?  I believe so but just want to verify. If so, where can I get some?
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Re: Headers flange differences

Post  c.evans on January 6th 2014, 2:44 pm

psfracer wrote:Is the C460 and profiler exhaust flanges the same?  I believe so but just want to verify.  If so, where can I get some?  

The exhaust bolt hole pattern is the same "Pro Stock" pattern on both heads. However, relative to the bolt holes, the port exit is in a different location. Since you bought the heads from Bob and Kyle, imo the most logical thing to do is just have Kyle custom build your headers for you. He can make the flanges and everything since he is a race car fabricator.

Charlie

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Re: Headers flange differences

Post  rmcomprandy on January 6th 2014, 5:47 pm

Lem Evans wrote:The A460 exh is bbc pattern.....c460 is it's own deal.

Be careful Lem ... some A460 exhaust bolt patterns are on 4.9" spacing and others use headers which are on 4.840" spacing, Some, the ports are on 4.900" spacing but the bolt pattern is 4.840".

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Re: Headers flange differences

Post  Lem Evans on January 6th 2014, 6:22 pm

rmcomprandy wrote:
Lem Evans wrote:The A460 exh is bbc pattern.....c460 is it's own deal.

Be careful Lem ... some A460 exhaust bolt patterns are on 4.9" spacing and others use headers which are on 4.840" spacing, Some, the ports are on 4.900" spacing but the bolt pattern is 4.840".
 
 
 Wink  And, that's the reason I try to always say "pattern" not spacing. You are correct.....it does make a difference.

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