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Oct 16, 2002 | 12:02 PM

karlsd

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Joined: Aug 2001

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From: Collierville, TN

390 Heads

Oct 17, 2002 | 10:23 AM

gtex

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From: Texas

390 Heads

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=1868925334

These look like a decent match for my setup. Do any of you FE Gurus see any issues with compatibility. See Sig for hardware.

Oct 17, 2002 | 10:32 AM

Post Fiend

Joined: Feb 2000

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From: Brea CA

390 Heads

Don't know if the high-exit exhausts on the C4 heads will match the flange on your Dynomax headers.

Barry

Oct 17, 2002 | 10:37 AM

gtex

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From: Texas

390 Heads

[updated:LAST EDITED ON 17-Oct-02 AT 11:40 AM (EST)]That's what I was afraid of. So, are the ports larger, in a different locatioon or have a different header bolt orientation?

Oct 17, 2002 | 11:07 AM

Post Fiend

Joined: Feb 2000

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From: Brea CA

390 Heads

The ports are not any bigger but are located higher by about 5/8". The bolt pattern is the regular up-and-down configuration, no diagonals like the GT heads.

Barry

Oct 17, 2002 | 02:18 PM

Post Fiend

Joined: Feb 2000

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From: Brea CA

390 Heads

Oops, I mean't 5/16".

Oct 17, 2002 | 04:13 PM

gtex

Lead Driver

Joined: Apr 2001

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From: Texas

390 Heads

What do you think of the "Buy it now" price of $665? It seems reasonable to me, considering the Eds or even rebuilt Iron cost $1100-1200.

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Oct 18, 2002 | 02:02 AM

Scotty1

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Joined: Oct 2001

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From: Miami U.S.A.

390 Heads

The buy it now price seems resonable. Would defintily contact seller and ask some questions. Like were hardened valve seats installed, when were the heads built, why are you getting rid of them, and so on. But, there is definitly a conflict in your header flange and the heads themselves. Nothing that can't be delt with but still a problem. I have hear you can oblong the bolt holes in the headers to make them line up properly. This should improve flow and limit chances of gasket failure due to the better alignment of the head and header.

Defintily give the guy an e-mail to see what you can find out other than the listed specs. Good luck.

Scotty