The Official Vortec 454 Info thread

[BNielsen]

Does anyone still make long tubes for these mills? I've searched Summit, Jegs, eBay; I wanted JBAs but both Summit and Jegs don't have them and show them as unavailable.
I can't even find anything for TBI motors now,

 

[fancyTBI]

Hedman Hedders 69390 Hedman Street Headers | Summit Racing

Free Shipping - Hedman Street Headers with qualifying orders of $109. Shop Headers at Summit Racing.

www.summitracing.com

these?

 

[BNielsen]

Hedman Hedders 69390 Hedman Street Headers | Summit Racing

Free Shipping - Hedman Street Headers with qualifying orders of $109. Shop Headers at Summit Racing.

www.summitracing.com

these?

I looked at those; they're for squarebodies. I don't know if they could be modified to fit the 400 frame?

 

[Reluctanse]

I looked at those; they're for squarebodies. I don't know if they could be modified to fit the 400 frame?

most of the comments on those are from people running them on our trucks.

You have to be the guy to test for us!!

 

[fancyTBI]

I looked at those; they're for squarebodies. I don't know if they could be modified to fit the 400 frame?

In the Q&A someone asks if they will fit a ‘95. Maybe they fit a C better than a K though.

 

[Reluctanse]

here's a ceramic coated option for 91-95:

1992 CHEVROLET K3500 Hedman Hedders 66391 Hedman Street Headers | Summit Racing

Free Shipping - Hedman Street Headers with qualifying orders of $109. Shop Headers at Summit Racing.

www.summitracing.com

 

[BNielsen]

here's a ceramic coated option for 91-95:

1992 CHEVROLET K3500 Hedman Hedders 66391 Hedman Street Headers | Summit Racing

Free Shipping - Hedman Street Headers with qualifying orders of $109. Shop Headers at Summit Racing.

www.summitracing.com

Saving those; those may be a contender!

I just wish I could find a set of Banks headers. From all the research I've done those were the best headers for a 454.

 

[Schurkey]

I just wish I could find a set of Banks headers. From all the research I've done those were the best headers for a 454.

Buddy of mine put them on a 97 K2500.

He said that scrapping the OEM muffler in favor of twin aftermarket mufflers side-by-side made more improvement than the headers did. The OEM muffler "looks" like it has 2 3/4 inlet, but the tube are necked-down inside the case. The muffler is horribly restrictive.

 

[BNielsen]

Buddy of mine put them on a 97 K2500.

He said that scrapping the OEM muffler in favor of twin aftermarket mufflers side-by-side made more improvement than the headers did. The OEM muffler "looks" like it has 2 3/4 inlet, but the tube are necked-down inside the case. The muffler is horribly restrictive.

That's the only thing I'd leave out if I could get my hands on a Banks Powerpack, I think I remembered you mentioning that some time back.

 

[Scottm]

Does anyone still make long tubes for these mills? I've searched Summit, Jegs, eBay; I wanted JBAs but both Summit and Jegs don't have them and show them as unavailable.
I can't even find anything for TBI motors now,

I looked all over and found nothing, so I bought ebay not-very-long-tube 2wd stainless ones and spent way too much time modifying them to clear the 4wd. You might try Doug's Headers or Kooks, but they won't be cheap. I really miss Stan's Headers..