EX 514 header flanges

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EX 514 header flanges

Post  fc2444 on December 4th 2017, 2:13 pm

Need a set of EX 514 header flanges 2 1/8 any idea where i can find a set?

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Re: EX 514 header flanges

Post  cool40 on December 4th 2017, 3:12 pm

Any BBC will work.
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Re: EX 514 header flanges

Post  fc2444 on December 4th 2017, 5:22 pm

Yea I know that but will the ports line up? These need to be the squire ports. thanks

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Re: EX 514 header flanges

Post  rmcomprandy on December 4th 2017, 6:35 pm

fc2444 wrote:Yea I know that but will the ports line up? These need to be the squire ports. thanks

Most Big block Chevy flanges have square ports and will need to be cut and spread apart very slightly to increase port spacing from 4.840" to 4.900"; the bolt pattern is exactly the same.

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Re: EX 514 header flanges

Post  cool40 on December 4th 2017, 10:21 pm

My BBC flanges fit without cutting anything. I have 2.5" tubes so no issues with covered ports.
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Re: EX 514 header flanges

Post  fc2444 on December 5th 2017, 9:59 am

All of the A head and the EX 514 are 4.840 bore spacing on the exhaust, and
most BBC use the round ports.I have a pattern to cut those, but if you use a round
flange on the EX 514 it will not fit the port. This is a max effort pulling engine and they must fit
fit the port. I will try a set of chevy squire ports. The only problem is i'am in Tn. and the
motor is in Iowa. thanks

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Re: EX 514 header flanges

Post  rmcomprandy on December 5th 2017, 10:32 am

cool40 wrote:My BBC flanges fit without cutting anything. I have 2.5" tubes so no issues with covered ports.

There must have been different EX514 heads produced with different exhaust patterns because the EX514 heads I have at the shop measure a 4.900" bore spacing from port to port and the bolt spacing seems to be that way too; (the same as the original Ford Motorsport A460 heads).

I know that the TFS heads have 4.840" exhaust flange port and bolt spacing and the IDT heads have 4.900" exhaust port spacing but, have the bolt patterns at 4.840" spacing.

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Re: EX 514 header flanges

Post  countrytime on December 5th 2017, 10:39 am

I own a aluminum ex514 headed pump gas motor and once brought some shorty Chevy headers to try and fab up a hot side for turbo and the center ports would not line up. Gave headers away.

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Re: EX 514 header flanges

Post  BOSS 429 on December 5th 2017, 11:53 am

the EX514 heads are 4.9.   They are a chevy bolt pattern, but not a chevy port really.

We always cut the flanges apart to fit,this is what is needed. All the flanges you will buy will be 4.84

call 8157276331 glen or joe c. , make sure to tell em I sent ya. they can order or have the flanges. Im getting ready to order another set  for a 545 for a guy myself.


-Rich
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Re: EX 514 header flanges

Post  cool40 on December 5th 2017, 11:21 pm

rmcomprandy wrote:
cool40 wrote:My BBC flanges fit without cutting anything. I have 2.5" tubes so no issues with covered ports.

There must have been different EX514 heads produced with different exhaust patterns because the EX514 heads I have at the shop measure a 4.900" bore spacing from port to port and the bolt spacing seems to be that way too; (the same as the original Ford Motorsport A460 heads).

I know that the TFS heads have 4.840" exhaust flange port and bolt spacing and the IDT heads have 4.900" exhaust port spacing but, have the bolt patterns at 4.840" spacing.
that would be why mine works,IDT heads. I never had any ex514 heads but do have old Motorsports and they are definitely different,I thought they were the only ones. Embarassed
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Re: EX 514 header flanges

Post  mr.horsepower on December 10th 2017, 6:50 pm

I have some for 2 1/4 got em from the fab shop, have had them for some time now, hmu if your interested
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