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Original Message
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| RE: Headers for 1969 Mustang |
| By Dave Shoe - 05/28/2001 4:24:45 AM; IP 12.2.11.131 |
The stock 390 unibody exhaust manifolds are bad for performance. As for difference in horsepwer: Expect your smile to go away. If you gotta use cast iron, you want to use CJ manifolds - they fit by redrilling the top manifold hole at the #8 cylinder, not possible when in the car.
As for headers, you've got one primary choice if you've got C6AE-J, C6AE-U, C7AE-A, or C8AE-H (you've got these) or D2TE-AA heads: FPA (fordpowertrain.com). They make a quality header which fits the "emissions era" exhaust runner and also offer great ground clearance.
If you've got C6AE-R heads (1966-67 only), 428CJ heads, Edelbrock heads, or '65-earlier heads, you've got some more choices, including Hooker (poor ground clearance) and FPA (the pre-emissions version of the header).
Headers awaken an FE - you don't want to go back to iron. I can't think of any shorty style headers, though I'm sure someone makes them.
JMO,
Shoe. |
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