doug's 669Y tri-ys

[kylezx10]

lookin for bigger tube headers,or some thing that will cover the 1.4x1.36 exh port. the hookers ports are smaller but are better then the chinese tri-ys I have now. dougs 669Y look like they might fit with a little work.thoughts,ideas?

 

[baddad457]

Do what I did and weld all the tubes on the outside of the flange, then port the insides to blend the flow into the header port.

 

[kylezx10]

what header did you use that would be alot of weldind on the 1 1/2 tri y

 

[baddad457]

Shelby type tri-Y's. Bought em used off ebay. Ran em with my 331 (canfield heads) they never limited the topend performance.

 

[Teddyzee]

The Dougs Tri-Y's I've seen are 1 5/8" primary, but still 2.5" collector.
I'm curious if they fit, and what difference there would be.

Silly as it is, I'm starting to think about larger headers for a change of sound. I know, I know...
Maybe not.

 

[kylezx10]

dougs has 2 sets of tri-ys automatic and manual the manual set looks like it might work