Trying to order all I need for my header install, and know that I need band clamps..

But there are two kinds, lap and band joints. Which one do I need? It's going on a slip fit connection of course, and I don't want to use the U bolts.

I'm thinking lap joint, but want to be completely sure.

Lap Joint
http://www.summitracing.com/parts/SUM-692250/
Butt Joint
http://www.summitracing.com/parts/SUM-693250/

 

If you are going to use mild steel headers and pipes, use a but joint, if you have stainless go with the lap joint...

 

Thanks. They are stainless so lap it is!

But why does the material make a difference? Very curious.

 

Mild steel will rust within the lap, makes it almost impossible to get them apart without heating them and beating them up. Stainless doesn't rust( if its a decent grade) and will come apart much much easier..

 

Thanks alot!

So am I correct in assuming the lap joint is slightly larger on one end to accomodate where they come together at, while the butt joint is one size?

 

Correct..

 

Thanks for the quick help!