Step header

[tri-power 250]

I need to rebuild my 6 to 2 to 1 header to clear my newly added Lakewood bellhousing. Can anyone help me with this project? I'm thinking a step header,a set of smaller diameter tubes run in front of the firewall. It's that or use an iron manifold.
Can someone tell me where I can get a collectors for these headers?
Thanks,
Ken

 

[bubba22349]

If you are talking about a small amount of change. Have used sections of straight, 90 degree, and U bends or by cutting out pie cuts of the primary or secondary pipes to move the collectors over enough to clear.

 

[wsa111]

Step headers are used by racers to pick up midrange torque & to enhance the speed of the exhaust slug.

The primary pipe out of the exhaust port might be 1 3/4" & then 8" later go to a 1 7/8" primary pipe.

Unless you intend to use your engine in competion you are just wasting your money.

Small engines need a smaller primary than a larger engine, all depends on your application.Bill

 

[tri-power 250]

Thanks for your input. I am just going to cut the header tubes near the flange and move the collector away from the bell housing. That project will start next week.
Thanks,
Ken