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The gasket matches perfect, it's the header

April 15 2017 at 4:55 PM

Ross  (Login Bad427stang)

Response to Re: Interesting findings on Hedman 4x4 headers

My gaskets match the heads, and I have both Hedman and Hooker truck gaskets here, same thing, it's the headers that are slightly higher. In fact, if I flip the gaket upside down, the D2 gaskets are a closer match to the header

It's not a lot, less than an 1/8 of an inch and I never had a leak, but it it very close to not holding a gasket on one tube due to slight manufacturing difference at the weld ring
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- 70 Fastback Mustang, 489 cid FE, Victor, SEFI, TKO-600 5 speed, 4.11 9 inch.
- 71 F100 shortbed 4x4, 445 cid FE, headers, RPM intake, 1000 HP series Holley, 4 speed

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