PowerPipe Exhaust Headers for slant/6 (Made In America)

[Mister Twister]

I Would love to do this if we can gather any info that shows a gain. I have been throwing around this I think is in the same line of thought. 1,5,3, to one collector and 6,2,4, to the other. Allowing one header to fire first then the second header. What would that sound like? 

[grumpuscreature]

Thought of that, but there would be a 360 degree gap from number 3 back to number 1. Although it may be better suited to a single exhaust since the system would only have a string of pulses from each collector to deal with. As to what an inline 6 sounds like with evenly spaced pulses and dual exhaust, think Jaguar.

[Mister Twister]

Hello grump this is what JS posted as a reply to your idea.
1-5
3-6
2-4

That's the firing order. As you can see when divided into two groups cylinders 1, 2 and 3 go together as do 4, 5 and 6. No need to change the cylinder grouping, it's already optimum.

[Mister Twister]

Back to the build. We finished front 1/2 of headers yesterday. Finishing the rear today should have pics up soon. This would be alot easier if we had an early A body here. The fitment in my 72 225 Duster is no problem the 1" drop in the Duster is ok but will this fit  the early A-Body. I will bring these to Charrlies house for fitment in the early A bodys. He is near Ocala 80 miles north of us and has a 65 Valiant we will put a power steering box and the 170 in that for fitment. Sure hope this works we may need to get one to the house if they don't fit. Marking redoing driving 160 miles would get old and very costly fast. I think it would pay off in the long run Don.

[grumpuscreature]

Hello grump this is what JS posted as a reply to your idea.
1-5
3-6
2-4

That's the firing order. As you can see when divided into two groups cylinders 1, 2 and 3 go together as do 4, 5 and 6. No need to change the cylinder grouping, it's already optimum.

I feel like such a clone. For some reason I had 2 and 4 switched in my head i.e. 1-5-3-6-4-2. Checked the firing order on the car and in the owner's manual, and guess what? I was WRONG! Carry on with your good work and ignore my ravings. Glad you straightened me out.

[Mister Twister]

  mixing pulses instead of spreading them out! The NASCAR's boys and girls run better in a pack he he!!!
 We reconfigured the front header a little and this is why! We looked at a picture of clifford shorty's when we made these. The #1 cylinder connection length pictured on the left is 26 1/4" #2 cylinder is 23 1/2' and the #3 length is 21 1/4" this is a spread of 5"

 Now with my new design this is what it is!! The #1 cylinder connection length is 31", #2 cylinder 28 1/2" and #3 is now 29" longer than #2 after re-bending. Now the spread of connection length is only 2 1/2" Hope we can find some way to do this in the rear 1/2 of header as well. Going to get pic now. THE PRICE WILL BE LISTED TODAY DON

I will get some pics installed later today, finishing the rear soon decided to change them a little Don

[Mister Twister]

Look at room between header and steering box. Drop for the 170 1" still has room for some movement
 
The #3 re-bend  for equalization some what of tube length.

First set I made of 3 into 1 collectors with 3" flange mount.

More soon!!!

[grumpuscreature]

Looking good!    If you can make me a set with 1 5/8" primary tubes and 2 1/2" collectors with no collector rings, consider them sold and me a happy man! 

[Mister Twister]

OK Grumpy I will check with my supplier for that size pipe and my dye selection Don. 

[Mister Twister]

The price on the new PowerPipe-DC true flow header design with this style of merge  collector will be $300.00 to the door in the U.S.A.

One of the test set's

I was able to come up with a price using this set. and rounding them off to an even amount, leaving no surprises when shipped to you.
We started the sets for sale, these will have 1/2 flanges to match the intake! The primary pipes will be brought through the flanges and welded on the motor side of the flange. The pipe thickness is .050 for the primary pipes the collector is .060 aluminized steel alot thicker than standard header material and will last alot longer. The collector size will be 2 1/2" and 3" slip on or flange mount.  Leak check? Each set will be connected to a full exhaust system before sand blasting or painting is done. We will offer them coated as well.  The price for these is $450.00 Ceramic or Chrome. More on this soon Don!!!!

[Mister Twister]

New rear header starter clearance.



Stagger for pipe entrance.

Rear header block clearance.

Connection for ground clearance no problem with these.

Clearance for center link drop little over 2".


Block clearance rear header sweet.

We installed all nuts by hand no chance of cross threading.




Easy install on these, not 1 scratch on a painted set that is unusual.

[Mister Twister]

Now that we are done with that build. The turbo 6 into 1 this will be T-3 connection!!! Starting build soon.
Where will it mount? How will it mount? I need more input. I know where I will mount mine, might not be for everyone thoe. More on this soon Don.

[Mister Twister]

Power steering  looks good with these

[Mister Twister]

Spoke with Charlie today, we should be ready to do this next weekend!!! They should work in his 65 Valiant with a 170 motor also changing out the steering box to see if they work with power steering as well. Then he wants to mount his A/C bracket to see if they work with that. Charlie has been racing slants for a long time and is well known in the slant world.  What better way to help the slanters than him assisting us. Thanks Charlie Don.

[Mister Twister]

 We reconfigured the front header a little and this is why! We looked at a picture of Clifford shortys when I made this first set. This is what measured out to. The #1 cylinder connection length is 26 1/4" #2 cylinder is 23 1/2' and the #3 length is 21 1/4" this is a spread of 5" in tube length.
Now with my new design this is what it is!! The #1 cylinder connection length is 31", #2 cylinder 28 1/2" and #3 is now 29" longer than #2 after re-bending. Now the spread of connection length is only 2 1/2" Hope we can find some way to do this in the rear half as well.
 Checked the difference in the rear ½ of header. The set we first made has this measurement. #4 cylinder is 21”  #5 cylinder is 24” and the #6 cylinder is 36” connection length. Spread of  15”
Ok here is the back ½ of the header with a little modification. #4 is 26”  #5  28” and  #6 is 32” and the spread now is only 6" getting better all the time. Now taking a good look at this last set' I think we can reduce the spread a few more inchs more inchs.