Need Opinions On what I sould do for a new exhaust>>Pics>>

[Burt4x4]

As most of you know by now I have a new 454 in my K5:

Saturday moring I am having new pipes put in from the headers back. I am going to use 70sireis BBC Flowmasters.

Lets start here at the head:

Thorleys
Look at the collector difference WOW

Seams bent but that is the way they come....
Pass side so close to frame:

My plan is to use 2.5" pipe and route the tips somewere back to the corners. My last exhaust setup had turn downs after the Flows but this caused a HELLOV alot of dust so I don't want that(dudes calling me a dust bunny ain't cool hahahaha)
With this BBC & Thorelys & 70series Flows & 2.5" pipe would you also add an H-Pipe?
What would an H-Pipe do for me? If anything?
Not much room so the H would probly be after the Xfer case, is that too far back to do any good?

Talk to me fellas
Burt

This thing is BA Baracas fer sure

 

[Burt4x4]

Comon all thease great pics and no opinions

 

[90blzr]

Pics kick ass!! as does BA Baracus Thats my opinion

 

[83ZZ502_Jimmy]

IMO, I would run dual 3" on a big block. Use an H pipe under the back of the t-case and have the shop make it so it can be removed, its not hard for them to do..

For exhaust pipes go out the sides behind the tires with 3.5" tips.

Its how I did my 502.

John

BTW, great pics and great work.

See the pic for an idea..

 

[Burt4x4]

So basically I'm better off with an H pipe...OK, I'm cool wit that

 

[seattle73k5]

Coffin Muffler, thorley headers, 2.5 inch stainless, 5 inch tips

Coffin Mufflers, Thorley headers, 2.5 inch stainless, 5 inch tips.

If you are interested in the Mufflers they are custom made and have a killer sound and made a noticable HP difference.

Newberry's Mufflers I bought the blazer from the owner and he is willing to make some killer deals if anyone is interested.

 

[Burt4x4]

I see red Xs..might be my work's firewall

 

[seattle73k5]

Have an email address I will send them to you I think it is a good set up sounds great deep rumble.

 

[Burt4x4]

ya try [email protected]
Thanks Bro

 

[divorced]

So basically I'm better off with an H pipe...OK, I'm cool wit that

A few years ago I read an article in HotRod magazine where they did dyno test of different exhaust systems on the same vehicle. When they added the crossover pipe the hp/torque numbers went DOWN. There was also a minimal difference between open headers and a full exhaust system using mufflers. The tests were done on a street (not race) engine. I would just run two pipes with no crossover.