header tube size?

[Beekeeper]

Which size header would you guys recommend for 426 hemi stroked to 496
with stage V custom heads and stage V intake? this will be a street driven car 69 bee with power steering and 3:91 gear
with 4 speed. I see 2 1/8” and 2 1/4” tube sizes.

 

[diesel_lv]

2-1/8 stepped is what I run on my 383 stroked 496. And it's probably overkill for mine that is purely street driven.

 

[67MPRFAN]

Can you add more details on what car, heads your using, brand of headers and how is the fit with them.....

2-1/8 stepped is what I run on my 383 stroked 496. And it's probably overkill for mine that is purely street driven.

Sorry for the highjacking your post

 

[Beekeeper]

Can you add more details on what car, heads your using, brand of headers and how is the fit with them.....


Sorry for the highjacking your post

I don’t mind at all any header info here is welcomed. Someone else will need to know it one day and here it will be.

 

[diesel_lv]

On the low deck 383, the 2-1/8 stepped required 1 Accel shorty header spark plug, ceramic plug boots to keep from melting, boot/wire covers to again keep from melting, head bolts instead of studs for clearance.

 

[33 IMP]

Either one will be fine with a 496" hemi. You might find a small difference (in favor of the 2 1/4) on a dyno, i doubt that you could feel the difference in the drivers seat.
Is there any difference in the collector size?
I have two cars, maybe three, that have "too big" exhaust. I cant say i ever noticed any loss of performance. I rode, and raced, in a friends 440 duster that had 2 1/4 pipes into a 4"collector, four inch pipes back to a necked down 2 1/2 turbo (3" stuff was uncommon at the time.) It did not lack torque because of too big exhaust.
I would lean toward the bigger pipes. You might have better access around the motor with the smaller pipes.

 

[INTMD8]

I would go even smaller than 2 1/8 but no one makes them. (So I'll be making some myself)