Does anyone have the part number for the efi conversion pipe that attaches to the efi exhaust.

 

PN 45166 walker downpipe.

 

Thank You very much.

 

Thats the number!

 

When you get it look down the rear pipe and you can see where they didn't make the opening into the front pipe quite right and left some material creating a slight blockage. A small grind stone on a long shaft in your drill will take care of it in a few minutes.

 

Thanks for the heads up on the blockage. I'll check for it after I get it, if I get it. I can't wait to get the offy DP intake, Holley 390, EFI exhaust on my truck.

A Friend of mine has a truck he has decided to junk out. It has a 300 straight six that has the holley 390, which he gave me for parts to fix the one I just got, I needed the choke off of it. Offy DP intake, and headers. I'm going to try and talk him out of the headers and exhaust he has on it. If I can't get the headers then I'll get the walker pipe.

 

like harte3 said, there's burrs to clean up. The other holes, if not used can be capped off with standard brass endcaps from home depot/menards. Atleast that's what I did.

 

I think the other hole is a bung for an o2 sensor. I thought about using it for a sensor for an Air/Fuel ratio guage.

 

Look in my Gallery for a picture of the poor welding and hole cut for the back pipe connection. Be carefull on the grinding - it's thinner than it looks.

 

If you drive your truck hard like I do mine... it stands a really good chance of cracking right where they poorly welded the rear exhaust manifold pipe into the main pipe. Mine cracked 5 times in one year and got to the point where I couldn't fix it anymore. I just put the stock down pipe on it.

If you plan on racing your truck or driving it really hard offroad... get an exhaust shop to make you a Y pipe and make sure they brace it.

Something i'm thinking about doing is leaving the stock down pipes from the exhaust manifolds back and removing the cats.

I just realized I don't know what year your truck is. If it's not EFI just ignore everything I just said. lol...

 

How hard are you talking cjsteak? I beat mine pretty good, but it's still a daily driver so it's nothing like racing..

Btw sorry for conversing on two different posts, lol.

 

No worries about the other post lol...

How hard I was on my truck...

Well when I had that pipe on my truck, (95 F150 SWB Reg Cab) I had a sandblasting service. I'd put 3000 pounds of bagged sand in the bed of my truck and tow an Ingersoll Rand 185 John Deere diesel powered air compressor plus an additonal 300 pounds of sandblasting equipment strapped on to that. Maybe with the aircompressor I was hauling around an additional 7000ish pounds besides the truck? The engine and transmission did great (300 M50D 5 speed). The motor mounts and U-joints took the most beating. I was putting over a thousand miles a week on my truck and was changing the oil religiously once every three weeks. I was changing engine mounts, transmission mount and rear U-joint once every 2-3 months. Beating cars off the line with that kind of a load didn't help though. God forbid anyone with a Chevy or Dodge half ton towing a load even 1/2 the size of mine pulled up next to me at a red light. When that happened, game on. It happened more than a few times. Only got beat once by a Dodge reg cab shortbed with a 5.9 towing lawn equipment. Psh.

Forgot to mention. when the truck was totally empty I drove it like a Porsche and at my dad's ranch we'd check fence like it was a CORR truck. The truck now has 201,350ish original non rebuilt miles on it. It still handles stops and accelerates better than new. I'll try to get a pic of it on here one of these days it would amaze you how it looks like an 80k truck. I've used the hell out of it but i've been meticulous with it's upkeep. That last statement pretty much makes this post an oxymoron... but the truck is super clean regardless lol.

 

That is what i call inspiration, lol. I don't beat mine that hard except for the occasional front end launch off some random dirt mound, but then again i don't have a hitch to tow with either..

 

https://www.ford-trucks.com/forums/5...ht=walker+pipe