So I’m building a 408. CR will be 10.2-10.5, Callie’s rotating assembly, 317 heads ported by Katech with 5 angle valve job. It will also have a 200-250 shot just for ***** and giggles. I can’t decide if I should go with 1 3/4, 1 7/8, or 2” primaries. I think 2” might be a bit much, but maybe I’ll be corrected with this thread.

The deal is this is going in a Sonoma so my choices are somewhat limited unless I do a complete custom set. Stainless Works makes a nice set of 1 7/8” primaries, and MR sells 1 3/4” ceramic coated mild steel. MR also sells 1 7/8” and 2”, but those run 2 of the primaries outside of the frame rails on either side, which I’m not exactly crazy about.

This truck is being built for street/strip, and I have no qualms about turning it to 7000-7500 rpm. Any info or suggestions would be greatly appreciated.

BRP... I guess that’s the same as Muscle Rods. So do you have any pics of those headers that have 2 primaries outside the frame rails? Did you delete the inner fender completely or did you cut it out?

The price difference isn’t TOO big between BRP and the Stainless Works, I just want what will work best for my setup. I mean, the BRP stepped headers are $999.

Mine is almost down to the frame right now. Just gotta pull the cab when I get some time off work. I’ve been working a lot of OT. I’m not going full on drag truck, but almost. It’s getting the Glasstek fiberglass dash, which should arrive tomorrow. I’m pretty stoked to have found a good looking 2nd gen aftermarket dash. I’m keeping carpet and interior in, but all the sound deadening is coming out. It’s not going to have A/C or even the heater box, but I’m building a small heater box inside the cab that I’ll use primarily for windshield defogging.

Anyway, I’m getting way off topic. In regard to the Stainless Works headers, my main concern is them cracking from heat cycling. I don’t know if they backpurge them when they weld them. My main concern with the BRP is the two primaries outside of the frame getting all jacked up from road trash being slung on them constantly.

FYI, if you want to upload photos go to postimage.com and make an account. It’s free and stupid easy. You upload your photo then select how you want to copy the images to post in the forum. I think it’s Hotlink for Forum. Copy the link and paste it in your post and boom, there’s your picture(s)

Heres the dash I ordered

Heres how to use postimage

If you order one of those dashes tell them Nick Pohl put you on to it. I’m not getting anything, but I told them I was gonna put the word out. There’s not really many options for a dash, and theirs is awesome. They didn’t have pics on the site until I contacted them and ordered it. I told them they needed to post pics ASAP.

I’ve see their work and it’s great, I’m not arguing that at all. I would really like to know if they backpurge when they weld em though. That’s the difference between a pretty weld and a pretty weld that won’t crack when it comes to stainless.

Ok, so no, they do not back purge their welds. They do offer a lifetime guarantee though. Anyone have experience with stainless headers that are not back purged? I’ve never dealt with that before.

Huh? Primary size?

Gotcha