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Headers... |
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Orchuck
AMC Apprentice Joined: Nov/27/2011 Location: Oregon Status: Offline Points: 222 |
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Thanks Dennis,
I went to Doug's site priced @$681.00 ceramic 1 3/4"
Where did you put the EFI bungs?
Charlie
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1969 Javelin SST, BBO, 390, Air, Auto PS/PB, Tilt, GoPac
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RamblinMan
AMC Addicted Joined: Sep/26/2007 Location: Port Charlotte Status: Offline Points: 1237 |
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Doug's 1-3/4 on mine. Nice headers. Flange at the ends needs to be ground down to clear head bolts or studs because the flanges are so nice and thick. That's a problem with ceramic coated headers as grinding defeats the purpose of the ceramic coating.
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The Right Reverend of Blessed Acceleration
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THE MENACE
AMC Addicted Joined: Nov/04/2008 Location: So. California Status: Offline Points: 4428 |
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I welded the O2 bung into the right side collector!
Since you will doing be welding (and maybe grinding) on them you might want to go with un-coated headers.
RamblinMan made a good point! You might need to give a little more clearance on the flange to better clear the head bolts/studs, but that also needs to be done with Hooker and Hedman flanges too.
Also, if you have Edelbrock heads you will want to grind on the spark plug notches (openings) on the flange a bit to be able to get a spark plug socket on because the plugs sit at a slightly different angle on an Edel. head compared to a stock head, but thats not a big deal to do. I always touch up the ports on any header, but the Dougs ports seem to need much less touch up than the others. After you finish welding and grinding on them get them coated.
Dennis |
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Former Owner of:
The Craig Breedlove "AERO AMX" Still Owner: SS/AMX #9 replica (THE BIG MENACE) 70 AMX 416, EFI, Nash 5 speed 70 Javelin 401, 727 (Wife's) 72 Gremlin Autocross Project. |
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RamblinMan
AMC Addicted Joined: Sep/26/2007 Location: Port Charlotte Status: Offline Points: 1237 |
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Yeah, I forgot about the spark plug issue. I had to do that as well, and the spot is a little tight for an angle grinder even with the headers OFF the car the way I did mine, so a die grinder is probably better. Edited by RamblinMan - Oct/17/2014 at 11:13am |
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The Right Reverend of Blessed Acceleration
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BrotherBamc
Supporter of TheAMCForum Joined: Jan/22/2009 Location: Lewiston Status: Offline Points: 2248 |
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The Dougs do fit manual transmissions then? Even though they don't have a listing for a manual transmission?
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Orchuck
AMC Apprentice Joined: Nov/27/2011 Location: Oregon Status: Offline Points: 222 |
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Good advice on the ceramic coating, Thanks Now to find square port Doug's I am running original 69 heads |
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1969 Javelin SST, BBO, 390, Air, Auto PS/PB, Tilt, GoPac
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Orchuck
AMC Apprentice Joined: Nov/27/2011 Location: Oregon Status: Offline Points: 222 |
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Just called Doug's headers, no square port avaiable. They destroyed the tooling so no special orders.
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1969 Javelin SST, BBO, 390, Air, Auto PS/PB, Tilt, GoPac
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THE MENACE
AMC Addicted Joined: Nov/04/2008 Location: So. California Status: Offline Points: 4428 |
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Yes, the ones listed for automatic trans fit great on my 70 AMX. They use to have a listing for manual trans, D104 IIRC. I think mine are D103's, but I need to double check.
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Former Owner of:
The Craig Breedlove "AERO AMX" Still Owner: SS/AMX #9 replica (THE BIG MENACE) 70 AMX 416, EFI, Nash 5 speed 70 Javelin 401, 727 (Wife's) 72 Gremlin Autocross Project. |
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BrotherBamc
Supporter of TheAMCForum Joined: Jan/22/2009 Location: Lewiston Status: Offline Points: 2248 |
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I'm worried about clutch linkage interference. That'd be my biggest concern.
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THE MENACE
AMC Addicted Joined: Nov/04/2008 Location: So. California Status: Offline Points: 4428 |
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I didn't even think to ask if you were using the stock heads.
Dennis
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Former Owner of:
The Craig Breedlove "AERO AMX" Still Owner: SS/AMX #9 replica (THE BIG MENACE) 70 AMX 416, EFI, Nash 5 speed 70 Javelin 401, 727 (Wife's) 72 Gremlin Autocross Project. |
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