Big block headers

[wb292]

If you are interested in some shorties I have a unused set of JBA’s I’m not going to use. The EGR pipe and air connections are already cut and tig welded up.

 

[618 Syndicate]

If you are interested in some shorties I have a unused set of JBA’s I’m not going to use. The EGR pipe and air connections are already cut and tig welded up.

If the op isn't I may be, but not until he's had a chance to decide.

 

[99burbK2500]

If you are interested in some shorties I have a unused set of JBA’s I’m not going to use. The EGR pipe and air connections are already cut and tig welded up.

How much?

 

[99burbK2500]

Perhaps a moderator will move this thread to the "Exhaust" sub-forum.
https://www.gmt400.com/forums/exhaust.32/



Big-tube headers are almost certainly a mistake. You'll be unable to rev high enough to need that capacity; the L29 heads are dogs above 5K rpm.

The smaller tubes are better for this application. Higher velocity, better scavenging, more performance, less cost, easier fitment. There's essentially no downside.

I 100% plan on better heads and extrude honing the factory efi manifold.

 

[drewcrew]

How much?

How about a set of Sanderson headers ? They came out of a 1965 Biscayne 502.