Header size question,,500 " stroker
#2276668
03/26/17 06:53 PM
03/26/17 06:53 PM
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Joined: Jan 2003
Posts: 4,852 KENTUCKY
69CHARGERMD
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500" going in the 70 Challenger soon. (INDY EZ heads, solid cam, etc ) 10.6:1 pump gas mostly street use,,,,,,,,,,so clearance could be a issue and don't want to much hassle installing and working with them... What size header would you guys use,,,, ? thanks Doug
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Re: Header size question,,500 " stroker
[Re: 69CHARGERMD]
#2276678
03/26/17 07:07 PM
03/26/17 07:07 PM
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Joined: Jan 2003
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69CHARGERMD
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Hi Kevin,,,thanks,,,I was initially leaning toward the 2" TTI's,,,but wondering if it's going to have clearance issues with everything,,eg torsion bars,,etc ( put a bigger bar in it for street duty ) ?? I think the car would like the 2" better for breathing,,, The link for the Doug's 452 headers looks nice,,,have you used them much before ?? Did you like them,,? better than TTI ?
Last edited by 69CHARGERMD; 03/26/17 07:10 PM.
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Re: Header size question,,500 " stroker
[Re: 69CHARGERMD]
#2276679
03/26/17 07:08 PM
03/26/17 07:08 PM
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Joined: May 2009
Posts: 511 Temperance, MI
68 HEMI GTS
mopar
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mopar
Joined: May 2009
Posts: 511
Temperance, MI
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I run 2" stepped tti's on my sr headed 511 six pack roadrunner. The headers fit very well, only thing I would buy for a mopar.
Last edited by 68 HEMI GTS; 03/26/17 07:20 PM.
68 Dart GTS "HEMI" 10.30 @ 131 pump gas street car 3780# 69 Roadrunner 511 six pack 10.92 drive to track street car
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Re: Header size question,,500 " stroker
[Re: 69CHARGERMD]
#2276692
03/26/17 07:23 PM
03/26/17 07:23 PM
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Joined: Jan 2003
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69CHARGERMD
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Sounds like the vote so far is for 2" ( I have them on my 65 Belvedere w/no issues,,,but this is my first E body ),,,so not sure what i am in for,,,,, Was going to run a mini-starter,,hopefully this will help..
Last edited by 69CHARGERMD; 03/26/17 07:26 PM.
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Re: Header size question,,500 " stroker
[Re: 69CHARGERMD]
#2276785
03/26/17 10:20 PM
03/26/17 10:20 PM
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Joined: Jan 2003
Posts: 17,928 Akron, Ohio
ProSport
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I Live Here
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Akron, Ohio
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I vote 2" also, especially since it's not an A-body and the motor is 500". I even wonder how the TTI 2-2 1/8 step headers would fit your car?
1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
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Re: Header size question,,500 " stroker
[Re: 69CHARGERMD]
#2276827
03/26/17 11:18 PM
03/26/17 11:18 PM
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Joined: Mar 2009
Posts: 2,490 Sydney,Australia
tex013
top fuel
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top fuel
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Posts: 2,490
Sydney,Australia
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real happy with the Dougs 452 fit on my 68 Satellite . Easy plug change too
Tex
New best ET 10.259@129.65 . New best MPH 130.32 Finally fitted a solid cam, stepped it up a bit more 3690lbs through the mufflers New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm Power by Tex's Automotive
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Re: Header size question,,500 " stroker
[Re: ProSport]
#2277033
03/27/17 10:33 AM
03/27/17 10:33 AM
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Joined: Feb 2003
Posts: 1,646 Ontario,Canada
firefighter3931
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top fuel
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Ontario,Canada
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I vote 2" also, especially since it's not an A-body and the motor is 500". I even wonder how the TTI 2-2 1/8 step headers would fit your car? The step header is designed for a raised port head (SR/440-1) when used on a raised block. They will not work with a std ex port head like the EZ/RPM/Stealth etc....on a 440. They will fit a lowdeck with a raised port head, though. In this case the obvious choice is the 2in TTI's. That's what I have been using on mine with the EZ's and previously the RPM's with an RB block. The e-body & b-body engine bays are basicly the same dimensionally. Ron
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Re: Header size question,,500 " stroker
[Re: 69CHARGERMD]
#2277072
03/27/17 11:56 AM
03/27/17 11:56 AM
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Joined: Nov 2007
Posts: 277 MN
Willie68coronet
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I'm about to finally assemble my 446 with ez heads. The headers that I've had in my parts hoard are 2" primary's with 3.5" collectors Dougs D452 un-coated that I've read nothing but good things about here. They look like a real quality piece. But I haven't had header issues. The headers on my 383 are hedmans I got for $150 and never even painted them before installing on the 383 and it's been driven lots through the 15 years and are still good. I expect the Dougs to be at least that good lol.
'68 Coronet 500 w/ Indy EZ-1 headed 446, 727 trans, 9" rear First day at the track with SUV street tires and no traction: 1.688 60', 7.24 @ 101.79 in the 1/8 mile
Great customer service from: DominicThumper Carbs, B3 racing engines, Porter Racing Engines, A-1 torque converter's, Quick Performance, Racer Brown Cams, R&R Performance, Manton pushrods
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Re: Header size question,,500 " stroker
[Re: 69CHARGERMD]
#2277095
03/27/17 12:24 PM
03/27/17 12:24 PM
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Joined: Jan 2003
Posts: 4,296 Chicago, IL
TonyS451
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Chicago, IL
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I used TTI 2" headers in a 72 Challenger I used to own. It had a 505 rb w stealth heads. Perfect fit and excellent quality, and easy install. Well worth the money. Plus you can get the whole system that will bolt right up to the collectors w smooth mandrel bends. I went with the 3" x pipe and ultra flo muffs.
2 kids and a dog
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Re: Header size question,,500 " stroker
[Re: TonyS451]
#2277248
03/27/17 04:47 PM
03/27/17 04:47 PM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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I used TTI 2" headers in a 72 Challenger... get the whole system that will bolt right up to the collectors w smooth mandrel bends. I went with the 3" x pipe and ultra flo muffs. That's my system, including TTI's 3" Challenger tips.
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Re: Header size question,,500 " stroker
[Re: 69CHARGERMD]
#2277378
03/27/17 09:58 PM
03/27/17 09:58 PM
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Joined: Jan 2003
Posts: 4,852 KENTUCKY
69CHARGERMD
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Thanks everyone for the replies !! Very helpful info,,, Motor is almost done then to the dyno and hopefully in the car soon. Dwayne at Porter did the heads, intake and picked the cam. Will keep ya'll posted on the headers. Thx again ! Doug.
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Re: Header size question,,500 " stroker
[Re: 69CHARGERMD]
#2277401
03/27/17 10:33 PM
03/27/17 10:33 PM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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FWIW, I thought the Doug's and the TTIs were basically the same before today. However, when I compared pics of both together, it's pretty obvious that the Doug's is designed even more for fit, rather than performance, than the TTI. The primary tube lengths must vary from as short as 20" to closer to 40".
I know the TTI 2" ranges from about 25" to 41", but averages out to approx 32". Neither are ideal, but the Doug's looks even more compromised. I like the way both are made, but wish I could still use my old Hooker 2" Super Comps with raised-port heads; IMO they are a better design strictly from a performance perspective.
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Re: Header size question,,500 " stroker
[Re: 383man]
#2278376
03/29/17 03:55 PM
03/29/17 03:55 PM
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Joined: Jan 2004
Posts: 4,633 Motor City
6PKRTSE
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I have 2-1/8" Hooked Super Comps on my 528". I think they are choking it down a little but it is what I had for now. Mine still made 840 H.P. with them and 10.5:1 on pump gas.
1963 Belvedere 440 Max Wedge Tribute 1970 Charger R/T S.E. 440 Six Pack 1970 Challenger R/T, 528 Hemi 1970 Charger 500 S.E. 440 4 BBL 1970 Plymouth Road Runner 383 1974 Chrysler New Yorker 440 1996 2500 RAM 488 V-10 4X4 2004 3500 Dually Cummins 4x4 2012 Challenger R/T Classic.
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