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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: 454Man on March 17, 2012, 12:51:44 am

Title: Heddman header xtensions?
Post by: 454Man on March 17, 2012, 12:51:44 am: Will these header extensions clear the trans crossmember? I'm looking to purchase soon. Thanks
Title: Re: Heddman header xtensions?
Post by: bake74 on March 17, 2012, 08:32:42 am: You have to remind us of your truck and set up it has, sorry but have way to much going on in life to be able to remember everyone's build.
Title: Re: Heddman header xtensions?
Post by: 454Man on March 17, 2012, 10:52:48 am: Oh sorry. Its a 82 c10 lwb. I remember one member was saying he had to make some bends around the trans crossmember. My crossmember is higher on oneside than the other. I don't have the engine I the truck yet so I figured id ask to see what everyone else has been through
Title: Re: Heddman header xtensions?
Post by: Donut on March 17, 2012, 12:10:47 pm: If you leave them in the box, they'll clear fine.

Headers? No engine in the truck, you don't know where the headers dump. You don't know yet if there is a fitment issue.

Sorry if I sound a little abrupt, but with your question and what you provided, I don't know.
That's like asking if 100.00 is enough.
Title: Re: Heddman header xtensions?
Post by: 454Man on March 17, 2012, 12:39:59 pm: Yep headers.I guess I'm getting ahead of myself.I'll just wait until I get the engine in and check
Title: Re: Heddman header xtensions?
Post by: zieg85 on March 17, 2012, 01:01:59 pm: I am not a fan of headers but the long tube that I have seen require an offset on the drivers side to go above the cross member (where the cat should be) and the passenger side goes under. If you can find a 73-74 cross member then both sides can go underneath...
Title: Re: Re: Heddman header xtensions?
Post by: 454Man on March 17, 2012, 02:57:20 pm: Quote from: zieg85 on March 17, 2012, 01:01:59 pm
I am not a fan of headers but the long tube that I have seen require an offset on the drivers side to go above the cross member (where the cat should be) and the passenger side goes under. If you can find a 73-74 cross member then both sides can go underneath...
thanks!
I'm gonna buy the pipes from summit and weld them myself.
Title: Re: Heddman header xtensions?
Post by: beastie_3 on March 17, 2012, 03:17:41 pm: I used them on my 79 k10. Driver side was fine (straight back), but my passenger header dumped at a 45* angle towards the ground, so i needed to add in another bend.
Title: Re: Heddman header xtensions?
Post by: 454Man on March 17, 2012, 04:45:30 pm: Ok hope my headers don't angle down. Hoping this works out so I don't have to go to a exhaust shop and then have them try and max out my wallet. Wish I had a pipe bender for 2-1/2 pipe
Title: Re: Heddman header xtensions?
Post by: bake74 on March 18, 2012, 08:23:23 am: Quote from: 454Man on March 17, 2012, 04:45:30 pm
Ok hope my headers don't angle down. Hoping this works out so I don't have to go to a exhaust shop and then have them try and max out my wallet. Wish I had a pipe bender for 2-1/2 pipe

That is where you make friends with people, I have done enough favors over time for different people, when it comes to a one time thing, I usually can find someone I have helped. If I am going to need something more than once, I either rent it or buy it when I can.
Title: Re: Heddman header xtensions?
Post by: 454Man on March 18, 2012, 08:25:26 am: True
Title: Re: Heddman header xtensions?
Post by: beastie_3 on March 18, 2012, 01:12:55 pm: If you just need one or two bends, its cheaper if you take some pipe, cut it, and weld it back together. Thats what I did.
Title: Re: Heddman header xtensions?
Post by: 454Man on March 18, 2012, 01:14:21 pm: Good idea! I will look into this
Title: Re: Heddman header xtensions?
Post by: 78 Chevyrado on March 18, 2012, 03:43:17 pm: I think a lot (if not all) 73-87 3/4 tons and 1 tons came with a double hump cross member. my 78 has one in is stock. might could get one on the cheap that way.
Title: Re: Heddman header xtensions?
Post by: 454Man on March 18, 2012, 03:48:52 pm: I will look around on craigslist. All the junkyards I've called so far don't have any old chevy trucks.