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Author Topic: Homemade Headers  (Read 87638 times)

Offline zieg85

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    • 73-87 GM squarebody extended cab and conversions up to 91 R/V series
Re: Homemade Headers
« Reply #30 on: December 17, 2007, 08:07:15 PM »
Quote from: 123 pugsy on December 17, 2007, 07:57:03 PM
Looks like you should just use the older style. It looks like it dumps in the same spot.




I know but there is a matter of a whole new exhaust y pipe needed.  It dumps in the same spot but much higher with the newer style manifolds.  That is why if I just could space it out a hair.  I also have the emission tube that I have to put back in for the 86 and hook up the air pump.  I just prefer the total stock factory way.  I just don't have the coin to go with emission headers, new cats and a whole new system.  Just trying to get by the least expensive and easiest route so I can check my oil.  Thanks for your replies.
« Last Edit: December 17, 2007, 08:18:09 PM by zieg85 »
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Carl 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
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Offline bowtieguy

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Re: Homemade Headers
« Reply #31 on: December 17, 2007, 09:06:50 PM »
Those headers are going to looks great! Can't wait to see them finished!
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89 Black Lesabre T 62k miles
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79 Flat BlackChevy C-10  5.3/4L60E

Offline 123 pugsy

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Re: Homemade Headers
« Reply #32 on: December 20, 2007, 07:41:11 PM »
Quote from: zieg85 on December 17, 2007, 08:07:15 PM
Quote from: 123 pugsy on December 17, 2007, 07:57:03 PM
Looks like you should just use the older style. It looks like it dumps in the same spot.




I know but there is a matter of a whole new exhaust y pipe needed.  It dumps in the same spot but much higher with the newer style manifolds.  That is why if I just could space it out a hair.  I also have the emission tube that I have to put back in for the 86 and hook up the air pump.  I just prefer the total stock factory way.  I just don't have the coin to go with emission headers, new cats and a whole new system.  Just trying to get by the least expensive and easiest route so I can check my oil.  Thanks for your replies.

To get flanges cut at a waterjet shop would cost anywhere between 75-150 bucks.
Like I said , I have a drawing I could email the shop so they could cut them. The wife drew it ,so its not the best but my guy managed to use it OK. 


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Pugsy
76 C10 LWB
TPI 350

Offline 123 pugsy

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Re: Homemade Headers
« Reply #33 on: December 20, 2007, 07:45:11 PM »
I had to make another adjustment. :-\ I had to put in a dog leg so I could get the spark plug wrench onto #6 plug.
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Pugsy
76 C10 LWB
TPI 350

Offline 123 pugsy

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Re: Homemade Headers
« Reply #34 on: December 20, 2007, 07:55:03 PM »
I got the tubes approx within 1" of each other. You can see the dimensions written on 3 of the tubes.

I welded 2 up and give them a quick polish. They don't need too much polishing as I think I will get them ceramic coated.
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Pugsy
76 C10 LWB
TPI 350

Offline bowtieguy

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Re: Homemade Headers
« Reply #35 on: December 20, 2007, 10:06:42 PM »
Wanna come over and do my exhaust pipes?  You are doing a fantastic job!  Looks great!
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Toys:
89 Black Lesabre T 62k miles
03 Lesabre Celebration Edition
08 NNBS CC Z71 LTZ
79 Flat BlackChevy C-10  5.3/4L60E

Offline 123 pugsy

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Re: Homemade Headers
« Reply #36 on: December 21, 2007, 05:14:49 AM »
Thanks.

Its going so slowwwwwwww. :P

The last set I did was quicker as all I was concerned about was clearing the frame and not the tube lenghts.
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Pugsy
76 C10 LWB
TPI 350

Offline JJSZABO

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Re: Homemade Headers
« Reply #37 on: December 21, 2007, 07:32:05 AM »
Wow - that is really nice.  Great job pugsy!!  That is talent!  ;D

Could you post more pictures of your engine stand?  I didn't know you have a setup for running the engine out of the truck.  I would like to make a similiar stand.
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Jeff

86 Chevy C-10
350, TH400
Ex father and son project (son lost interest)

Son regained interest when truck was almost completed

Offline 85MudMonster

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Re: Homemade Headers
« Reply #38 on: December 21, 2007, 08:54:15 AM »
so, when can I buy a set?  ;D
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Dan

85 Chevy K10 - 408 BBC from a 71 Chevelle SS, TH350, NP208, 33" Mastercraft Courser M/T

Offline 123 pugsy

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Re: Homemade Headers
« Reply #39 on: December 21, 2007, 04:52:12 PM »
Quote from: JJSZABO on December 21, 2007, 07:32:05 AM
Wow - that is really nice.  Great job pugsy!!  That is talent!  ;D

Could you post more pictures of your engine stand?  I didn't know you have a setup for running the engine out of the truck.  I would like to make a similar stand.

Thanks.

The stand is overkill. It can be made with much lighter tubing.I just happened to have this 1-1/2x3" in stock. I still need to add a cover for the fan and a "dashboard" for the controls.
A tip: If you make a stand, make sure its high enough for the engine hoist to fit under it. Mine's too low and I will be raising it next time I use it.
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Pugsy
76 C10 LWB
TPI 350

Offline 123 pugsy

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Re: Homemade Headers
« Reply #40 on: December 21, 2007, 04:54:21 PM »
Quote from: 85MudMonster on December 21, 2007, 08:54:15 AM
so, when can I buy a set?  ;D

I don't know anyone with enough coin to make me go through this again! :D
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Pugsy
76 C10 LWB
TPI 350

Offline VileZambonie

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Re: Homemade Headers
« Reply #41 on: December 21, 2007, 04:57:43 PM »
Good job Pugsy! What made you want to make the headers anyway?

I have one of these and it would be really easy to make if you didn't wanna spend the $300 bucks to buy one

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Offline 123 pugsy

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Re: Homemade Headers
« Reply #42 on: December 21, 2007, 05:05:39 PM »
Nice stand. A couple of mods to mine and it'll be good to go.

As for the headers,the guys who did the dyno believe my engine is not breathing well. First pull was below 10:1 air/fuel. Second pull with the air breather off netted about 12:1. They believe the exhaust is restricting it. I figured if I neede headers,I may as well make them as I have no other projects on the go. ;)  I'll also be adding 2-1/2" true dual exhaust. One side is already good.
I'll do a dyno when I'm done and see if these guys know what they're talking about,but it definitely makes sense.
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Pugsy
76 C10 LWB
TPI 350

Offline 85MudMonster

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Re: Homemade Headers
« Reply #43 on: December 21, 2007, 07:28:20 PM »
what's on the other end of this motor, as in, what is it breathing in through?
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Dan

85 Chevy K10 - 408 BBC from a 71 Chevelle SS, TH350, NP208, 33" Mastercraft Courser M/T

Offline 123 pugsy

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Re: Homemade Headers
« Reply #44 on: December 22, 2007, 06:40:22 AM »
Quote from: 85MudMonster on December 21, 2007, 07:28:20 PM
what's on the other end of this motor, as in, what is it breathing in through?



I picked up a new K&N filter. Its huge. ;D


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Pugsy
76 C10 LWB
TPI 350
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