OBX is really popular with the sport import crowd. The headers look like quality pieces to me. I'd be willing to try them if they'd fit on my personal vehicle. The price is pretty good, also. I'd love to see a heads up comparison between all the headers available, Hooker, AZSM, Thorleys, Dynatechs...any more?
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
just to give you an idea and i know that its a race motor and everything but the last time i had the motor on the dyno we tried like 6 different sets of headers.. from hooker, headman, custom made step down tube and tri-y's and they were all within like 1-3 hp of each other... as long as the diameter of the primaries are relatively close then the difference will be hard to see on paper... our torque numbers only really changes with the step headers...
damn those OBX headers dont like bad at all red... they are t304 stainless as well would be worht a try... oh wait i dont have anything to put them on yet...lol
I am gonna be a new Daddy...
Drive it like you live hard and fast....
'91 rcsb, 4.3 V6, 700R4 trans swap, 4/6 drop rolling on 18's, roll pan, 2" cowl hood, electric fan, TBI injector spacer, K&N filter replacement, flowmaster muffler...
[Today 08:09 AM] ChevyLee: dale would make a awesome dad in law too
and they won't work on an OBS/LSx conversionYou need these...
Now if you could just someone to make a set for you! Don't ask.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
hell i will just come steal yours..lol i haqve a buddy that can make headers i may just have to get the truck to his house and use his saw and tig machine to weld up a set... what size primaries are those? is that a 3" collector flange?
I am gonna be a new Daddy...
Drive it like you live hard and fast....
'91 rcsb, 4.3 V6, 700R4 trans swap, 4/6 drop rolling on 18's, roll pan, 2" cowl hood, electric fan, TBI injector spacer, K&N filter replacement, flowmaster muffler...
[Today 08:09 AM] ChevyLee: dale would make a awesome dad in law too
They started out as big block Hooker headers for my 93 C1500 and then came the new header flanges and a meeting with a sawzall. Shortly after I started re-arranging and welding pipes until I got them to fit nice. The passenger side is a real bitch because there isn't much room for the pipes back by the transmission bellhousing! Yeah, 3" collector. I have 3" pipes all the way through the muffler, no reducers at all. The primary pipes are 1-3/4", should have probably got the 1-7/8" pipes but these fit snug enough already.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
sweet looking tubes for sure...
I am gonna be a new Daddy...
Drive it like you live hard and fast....
'91 rcsb, 4.3 V6, 700R4 trans swap, 4/6 drop rolling on 18's, roll pan, 2" cowl hood, electric fan, TBI injector spacer, K&N filter replacement, flowmaster muffler...
[Today 08:09 AM] ChevyLee: dale would make a awesome dad in law too
http://www.rocky-road.com/thorley.html
tri-y's explained...
I am gonna be a new Daddy...
Drive it like you live hard and fast....
'91 rcsb, 4.3 V6, 700R4 trans swap, 4/6 drop rolling on 18's, roll pan, 2" cowl hood, electric fan, TBI injector spacer, K&N filter replacement, flowmaster muffler...
[Today 08:09 AM] ChevyLee: dale would make a awesome dad in law too
I know I'm pretty happy with my OBX headers on my 6.0l swap. They're pretty tight on the passenger side frame rail though.
'99 GMC RCSB
3" Body lift, 4" Rancho lift, Fox shocks
36" BFG All-terrains
LQ9 6.0L swap, gt2-3 cam, longtubes, LS1 fans, Nelson Performance tune
4.8 gears/Eaton posi
Built 4l65e
Custom paint, roll pan, filled tail lights, relocated tail gate handle
Future mods:
Boost!!
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