1 5/8 longtubes Vs. 1 3/4 shorties?

[mikemustang289]

I'm looking at header options for the AFR 185's I'm gonna run.

The only longtubes I can see see that will fit the AFR's exhaust port are made by FPA and are pricey close $500 and over that in ceramic.

I was thinking about the option of 1 3/4 shorties, if such a thing is even made. I know shorties generally don't flow or make as much power as longtubes but in comparison to 1 5/8 longtubes on a 302, would I still be giving up power? My biggest concern is the port transition into the headers, right now my 1 5/8 longtubes don't match up right.

BTW, this engine is not going into a fox, but shorties should fit on my 68 with no problem

 

[86bluecobra]

i am told that on a 351w 1 and 3/4 are the way to go. on the 302 the 1 5/8 maybe better. if the ports are not matching up however i would say you need to get the 1 3/4.

 

[Daggar]

Here's the 1 3/4s incase you end up going that way.

http://www.andersonfordmotorsport.com/

 

[bluevenom867]

I though BBK made a set of long tubes 1 3/4" for the 302?

Though I dont think for AOD's.... (5 speed headers will fit C4's though)