MK-I MK-II MK-III MK-IV GULF MIRAGE J-CAR LOLA
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Why not start with your first post today and become an active part of GT40s.com now! And, if you find you enjoy GT40s.com think about becoming a Forum Supporter. | | GT40 Tech - Engines/Induction/Exhaust Motors and engine related - right here! |
08-17-07, 11:24 AM
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#1 (permalink)
| | Bill D I Have No Life 
Join Date: Sep 2001 Location: Camarillo, CA
Posts: 2,381
Rep Power: 33   | My Headers Don't Fit I have a set of ERA headers for my RCR GT40. Unbeknownst to me, my Victor Jr. heads have raised exhaust ports (.130) which is causing the pipes to not fit into the collectors unless a tremendous amount of force is used. What would be the best method of getting them to fit? Heating them up to relax the bends? Cutting them and adding small extensions?
Thanks
Bill D
__________________ Bill D
RCR GT40 Mk1 Gulf
Last edited by Bill D; 08-17-07 at 11:35 AM.
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08-17-07, 11:54 AM
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#2 (permalink)
| | Lifetime Premier Supporter 
Join Date: Jul 2002 GT40: New York
Posts: 723
Rep Power: 15  | Re: My Headers Don't Fit Why not see if ERA will take them back and then buy the proper set? |
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08-17-07, 11:59 AM
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#3 (permalink)
| | Bill D I Have No Life 
Join Date: Sep 2001 Location: Camarillo, CA
Posts: 2,381
Rep Power: 33   | Re: My Headers Don't Fit I didn't buy them from ERA. I bought them from a private party that didn't use them on their ERA
__________________ Bill D
RCR GT40 Mk1 Gulf |
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08-17-07, 12:41 PM
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#4 (permalink)
| | Rick A Tenth 
Join Date: Sep 2006
Posts: 102
Rep Power: 3  | Re: My Headers Don't Fit I think a small amount of judiciously applied heat would allow each individual pipe to be tweaked as necessary. They will also "relax" when heated by engine exhaust heat.
Good luck |
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08-17-07, 03:34 PM
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#5 (permalink)
| | jac mac 10 tenths 
Join Date: Dec 2005 Location: Gore N.Z.
Posts: 1,478
Rep Power: 19   | Re: My Headers Don't Fit Bill,
Your going to have to cut them, unless they are coated or chromed. Save yourself a lot of grief & sell them to someone with a std port arrangement on their car, and buy/build a set to suit your application.
Jac Mac |
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08-17-07, 03:42 PM
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#6 (permalink)
| | jonathans Silver Supporter 
Join Date: Jun 2005 Location: TN, USA GT40: RCR
Posts: 342
Rep Power: 7  | Re: My Headers Don't Fit Sell your heads on ebay and buy different heads. |
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08-17-07, 03:50 PM
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#7 (permalink)
| | Bill D I Have No Life 
Join Date: Sep 2001 Location: Camarillo, CA
Posts: 2,381
Rep Power: 33   | Re: My Headers Don't Fit The engine is already built.
__________________ Bill D
RCR GT40 Mk1 Gulf |
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08-17-07, 04:03 PM
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#8 (permalink)
| | Ron Earp Site Administrator 
Join Date: Sep 2001
Posts: 3,896
Rep Power: 54  | Re: My Headers Don't Fit A head swap is far easier than re-making those pipes or having new ones made.
Ron |
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08-17-07, 04:12 PM
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#9 (permalink)
| | FRPGUY 3 Tenths 
Join Date: Jan 2006 GT40: Norwell, Mass. USA
Posts: 363
Rep Power: 6  | Re: My Headers Don't Fit Bill, if you change heads, don't get the GT40 P heads. They are nice heads, but the exh. ports are too close to the spark plugs and finding the correct wires and boots is a must.
__________________ may no resin cure before it's time |
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08-17-07, 04:27 PM
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#10 (permalink)
| | jac mac 10 tenths 
Join Date: Dec 2005 Location: Gore N.Z.
Posts: 1,478
Rep Power: 19   | Re: My Headers Don't Fit Whats so hard about building a 'New' set of headers, hell they are all just sitting up there in a virtually open space, sometimes I think you guys get it too easy.
Jac Mac |
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08-17-07, 05:37 PM
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#11 (permalink)
| | Rookie 
Join Date: Mar 2004 GT40: Los Angeles
Posts: 27
Rep Power: 5  | Re: My Headers Don't Fit Bill:
Try calling Tri-C engineering [661-295-1550]. Rick Cresi is the owner, and could probably modiy them quickly, and at a reasonable price. Rick does some very nice work. If you want to see an example, e-mail me and I will send you a photo of the headers he did for my car.
Michael |
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08-17-07, 05:50 PM
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#12 (permalink)
| | Bill D I Have No Life 
Join Date: Sep 2001 Location: Camarillo, CA
Posts: 2,381
Rep Power: 33   | Re: My Headers Don't Fit Mike
Your email is blocked.
Send some pictures to dlm_racing@hotmail.com
__________________ Bill D
RCR GT40 Mk1 Gulf |
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08-17-07, 09:02 PM
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#13 (permalink)
| | Big-Foot Gold Supporter 
Join Date: Jan 2007 Location: Minneapolis, MN GT40: Replica
Posts: 1,338
| Re: My Headers Don't Fit holy crap Bill!!!! That's the pits!!!!!
Now I wonder if my RCR headers are going to fit with my 331 with DART-170 Heads!!! |
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08-17-07, 09:07 PM
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#14 (permalink)
| | Big-Foot Gold Supporter 
Join Date: Jan 2007 Location: Minneapolis, MN GT40: Replica
Posts: 1,338
| Re: My Headers Don't Fit So - With the ports raised - that also places them further apart (left for right) - By how much? |
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08-17-07, 09:50 PM
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#15 (permalink)
| | Bronze Supporter 
Join Date: Feb 2003 GT40: Monterey, Ca. USA
Posts: 151
Rep Power: 7  | Re: My Headers Don't Fit Bill, save yourself alot of trouble and swap the heads, I know someone (name not needed to be mentioned) that went through an almost identical situation and spent over $2K to modify the primaries to be able to use a $1K set of heads.
FRPguy, P heads ('96- Explorer) require headers made just for those heads, the spark plugs come straight out (not at an angle), but you are talking about iron production heads, I have these on my '65 Mustang with tri-y's made especially for the P's, BTW mild porting with a bit of pocket porting will make those outflow FMS "Y" heads, but if you use them swap out the valve train for something better and you will still be dollars ahead of FMS aluminum heads, Central Coast Mustang in Temecula, Ca. was a good source for P heads (all in, at the time @$500). |
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08-17-07, 09:55 PM
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#16 (permalink)
| | MReid 4 Tenths 
Join Date: Apr 2007 Location: Connecticut GT40: RCR Mk1
Posts: 457
Rep Power: 6  | Re: My Headers Don't Fit AFR 185s have the ports in the stock location. I think with a 90 degree V8, each side would be further apart by .707 of the raised amount. So .130 raised would equal .092 per side or .184 farther apart. Don't be fooled though, this is significant. Either cut to fit or replace the heads. I would replace the heads.
__________________ Have fun with your build! - Mark FFR Daytona Coupe RCR Gt40 Mk1 in the garage, and underway! |
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08-17-07, 11:26 PM
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#17 (permalink)
| | CESLAW Gold Supporter 
Join Date: Oct 2006 Location: Illinois
Posts: 324
Rep Power: 5  | Re: My Headers Don't Fit Randy: I have the Dart Pro 170 heads and the headers supplied by Fran seem to fit. I have not yet bolted everything down so this is a preliminary assessment. They are a bit tight around the left valve cover, but I do not anticipate any significant problems. So I would not be too concerned if I were you, at least not yet. For some reason my response to your PM was blocked. Chuck |
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08-18-07, 12:20 AM
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#18 (permalink)
| | Bill D I Have No Life 
Join Date: Sep 2001 Location: Camarillo, CA
Posts: 2,381
Rep Power: 33   | Re: My Headers Don't Fit I'm going to install them tomorrow with gaskets and do a full test fit. I'll post pictures.
See ya tomorrow
Bill D
__________________ Bill D
RCR GT40 Mk1 Gulf |
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08-18-07, 07:30 AM
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#19 (permalink)
| | Big-Foot Gold Supporter 
Join Date: Jan 2007 Location: Minneapolis, MN GT40: Replica
Posts: 1,338
| Re: My Headers Don't Fit Chuck - Thanks for your message.. I've no idea why my PM box would block your response as it was not full. I've done a little cleanup there also to give it even more space. RE: Your header clearance - It appears that the tube for Cylinder 7 was mis-positioned as there is room to get it a little more cozy to #8. I'll take a look at mine when I get out into the shop later and report back..
Bill - I'm wondering if you can assemble the tubes into the collectors and splay the header flanges just slightly while installing them as a unit? |
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08-18-07, 08:22 AM
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#20 (permalink)
| | FRPGUY 3 Tenths 
Join Date: Jan 2006 GT40: Norwell, Mass. USA
Posts: 363
Rep Power: 6  | Re: My Headers Don't Fit Chris K, Did all that ! Pretty good heads for the money. I used them in my Daytona Coupe.
__________________ may no resin cure before it's time |
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