Did you ever have an ORP marry itself to a set of headers?

ratio411

Founding Member
Apr 21, 2002
3,870
73
109
Pensacola FL
We have a BBK H-pipe that ran on one set of shorties for a year or so, and now we are using the same H-pipe on a new set of headers, but they don't want to seal against the ball on the collector.

Have you ever had this happen?

I figure that it conformed the socket to the set of headers it was on before, and now it is biased and doesn't want to seal against the new ones.

If you have had this happen, how did you work it out?

The new set of headers are higher quality stainless steel, and look to me to have a slightly shallower ball connection. I suppose if that is true, the sockets on the H were stretched a bit, and the shorter ball connection cannot fill it out now.

After goofing with it for a while, we finally got the left side sealed, but the right side just won't cooperate.
 
I bought a set of stainless headers off of ebay, new. The looked great but the passenger side ball was welded onto the header at the wrong angle. Wouldn't seal no matter what. Tried everything. Took it off and laid it beside a known good header and it was obvious. WAY OFF. I was pissed. Sent them back for a refund. Drivers side fit well.
 
  • Like
Reactions: ratio411
These are Summit brand, but appear to be high quality.
We did not check the angle of the balls to the other set, which were also Summit brand, but the dirt cheap versions in thin mild steel and with crappy welds. This set is very nice, but being generic may have a similar issue...

How did your eBay set look as far as quality?
 
AWESOME quality. I was pissed. They fit everything perfect but the passenger side of the H-pipe. Nice welds, machined flanges etc. I would have loved to have them on. But now I have junk BBK that fit but look like poo.
 
Okay, so we got it resolved.

The new headers, while very nice stainless steel, did have one flaw, the ball portion of the collector (for the ball and socket connection) was shallower than other headers, and they were also not very straight.

In order to get the BBK H-pipe to fit, after it had been mated to a set of headers with a better collector ball, we had to take a pair of pliers and bend the entire socket portion of the pipe over, so they would allow the shallow ball connections to sit further into the socket. I just bent the entire lip, all the way around the pipe, outwards about 1/8" or so.

Even though the left side eventually sealed, as noted in my original post, we ended up pulling it down and doing the same mod to it. I am glad we did too, because we could see the exhuast was just barely contained, and probably would have started leaking before long anyway. Better to get it sealed more permanently now while it was in the shop.

Really, with everything else on these headers being so 'right', they could have built the collectors so much better.