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HO header ?

Morning guys,
got my HO headers friday,and got a ? I already have a true duel exhaust with h-pipe and flows(no cats). I know i will have to lengthen my o2 wires and have the o2 bungs welded in to the h- pipe, but will the headers be a direct fit to the exhaust that i already have?? or will i have to have the pipes shortened? (where they meet the header)
Thanks, Joe
88 sport,TW heads, comp xe270hr, cobra u/Tmoss ported lower, 65 mm throttle body, under drives,smog delete,
1.7 roller rockers, cai, k&n, bbk adj regulator, 76mm Pro-m,all MSD ign. MSD dist,18° base timing, 3g alt.1 5/8 ceramic headers, 255lph walbro, 2.5" h-pipe, flowmasters, silverfox valvebody, 3.73 gear,
http://i216.photobucket.com/albums/cc154/flipnbird/DSCF0185.jpg ( RIP : ( )
 

HO header ?

Reply #1 –
I think the angle is diffrent between the mainfold and the shorty headers.




SCT Tuned by Me(Greg@SpeedyDyno.com)

E.T. 10.28 @ 136.5 MPH 1/4 mile: List of Mods; 351 EFI, AFR heads,AOD,Rousch 13in frt brakes,11in rear brakes, AirRide Tech air ride system, Sub frame connetors,2400 RPM stall, 3.50,BBK shorties,T62PT Turbos  air to air intercooled, Home built kit.
Car weights 3705lbs without driver:burnout:

HO header ?

Reply #2 –
Manifolds use a gasket to seal to the head pipes. The headers use a socket  to seal to the head pipes metal to metal. You'll have to mod the head pipes a bit to make the headers work.
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

HO header ?

Reply #3 –
thanks, if I get the headers on, is it safe to drive it to the exhaust shop with no o2's so they can weld the bungs in? when I had my exhaust off last time I don't remember a gasket, I was thinkin it was metal to metal also, maybe not!!??
Thanks again, Joe
88 sport,TW heads, comp xe270hr, cobra u/Tmoss ported lower, 65 mm throttle body, under drives,smog delete,
1.7 roller rockers, cai, k&n, bbk adj regulator, 76mm Pro-m,all MSD ign. MSD dist,18° base timing, 3g alt.1 5/8 ceramic headers, 255lph walbro, 2.5" h-pipe, flowmasters, silverfox valvebody, 3.73 gear,
http://i216.photobucket.com/albums/cc154/flipnbird/DSCF0185.jpg ( RIP : ( )

HO header ?

Reply #4 –
anyone??!!
88 sport,TW heads, comp xe270hr, cobra u/Tmoss ported lower, 65 mm throttle body, under drives,smog delete,
1.7 roller rockers, cai, k&n, bbk adj regulator, 76mm Pro-m,all MSD ign. MSD dist,18° base timing, 3g alt.1 5/8 ceramic headers, 255lph walbro, 2.5" h-pipe, flowmasters, silverfox valvebody, 3.73 gear,
http://i216.photobucket.com/albums/cc154/flipnbird/DSCF0185.jpg ( RIP : ( )

HO header ?

Reply #5 –
I wouldn't drive it without the O2's.

HO header ?

Reply #6 –
No biggie to drive it without the o2 sensors, it will just run a little rich.. Rather than all that, why don't you just find a Mustang H pipe??? Also the LSC Lincoln HO pipe fits, but it's 1"-2" shorter than the Stang pipe... At any rate you'll have a better system, and should only require some minor work at the extension pipes...