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Hedman Standard Duty Uncoated Headers for 1964-73 Mustang 351W

500-88650

made in usa

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Standard Duty Uncoated Headers for 1964-73 Mustang 351W
$252.99
2 left in stock
Standard-Duty Uncoated Headers
  • 1964-73 Mustang 351W
  • Tube Diameter: 1-5/8"
  • Collector Size: 3"
  • Free Shipping - Ships
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    88650 is rated 4.0 out of 5 by 2.
    Rated 4 out of 5 by from Average Quality I purchased these for a project that has odd fitment requirements. Unfortunately, they didn't fit but that's through no fault of Hedman. I had ordered the same basic set in their heavy duty application before this set. The difference being that the HD set had square ports and the standard duty had oval ports. The square ports were meant for the stock heads and I was putting these on aftermarket aluminum heads with larger square ports. The standard duty ports being oval were a closer fit but still not matching well to my heads. In general, I would say these headers were mass produced and the welds left a lot to be desired on the inside of the ports. A lot of excessive mig weld protruding into the port. The standard duty headers use 1/4" flanges. If you do use these, compare your gasket to the ports of both the heads and the headers to see if you have the same protrusions into the exhaust flow. You may want to clean the welds up to improve flow by matching your ports a little closer.
    Date published: 2021-08-31
    Rated 4 out of 5 by from the only header that fit my 1976 Ford Elite 351W fit ok except the drivers side hit the firewall had to pound it in alittle but it didn't matter wish they were in stainless or chrome
    Date published: 2015-08-26
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