Headers vs 340 manifolds

[junkyardhero]

Who do you have in ignore?

*cough* two-seventy-three *cough*

 

[ir3333]

AJ's post explains why the stock 340 cam is not big enough to benefit much from headers.
A good post that illustrates how and why, and the dyno numbers confirm this.
A stock 340's components were well matched and made for a great street performer.

 

[318willrun]

I've never put headers on a vehicle and not felt or notice the difference.

 

[273]

Who do you have in ignore?

I know who

 

[273]

*cough* two-seventy-three *cough*

Who little old me

Apparently I'm not good for his mental health, I just ignore him the old fashioned way by not interacting with him.

 

[MopaR&D]

I've never put headers on a vehicle and not felt or notice the difference.

I put long tube Hedmans on the 360 in my D200, the stock manifolds were cracked to hell and leaked really bad (noisy). I wanted to see if it would make a difference and they were affordable. Already had true dual exhaust. Sure enough, throttle response improved and needed less throttle for the same acceleration as before. WOT performance didn't improve much thanks to the stock 2-bbl cam but there were still noticeable gains. On a truck that does truck stuff (towing and hauling) extra part-throttle performance is nice to have.