Header tube for 327-350

Coleydog · 03-16-2017, 02:40 PM

What length do most use for the primary pipe for each engine and collectors

Coleydog · 03-17-2017, 04:19 PM

Must be top secret. Or there's not a Chevy on this site.

SSDiv6 · 03-17-2017, 04:34 PM

You will not get a straight answer because the question is open ended.
There are too many variations of Chevy 327 and 350 engines throughout the years. Some 2-bbl and others 4-bbl, not taking into account the FI engines.
The requirements are also effected by the type of cylinder head, compression and camshaft specs.
If you have a specific engine year and horsepower rating, you might get a response.
I you are curious, you can also purchase a copy of the PipeMax software and put your specs and it will break down the header requirements for the particular data you enter.

monte385 · 03-17-2017, 07:14 PM

Burns stainless has a form you can fill out & they will give a recommendation, for a price I think, & yes Pipemax.

4-2-1 or 4 into 1? I built a set of 4-2-1 for my 421 street engine but never tested against anything else.

Coleydog · 03-18-2017, 03:17 PM

Just remembered I have an old "Smokey" book, I'll reference that. Thanks anyway.

Alan Nyhus · 03-18-2017, 06:44 PM

What's your combination? -Al

03-16-2017, 02:40 PM	#1
Coleydog Senior Member Join Date: Jul 2014 Posts: 569 Likes: 36 Liked 53 Times in 38 Posts	Header tube for 327-350 What length do most use for the primary pipe for each engine and collectors

03-17-2017, 04:19 PM	#2
Coleydog Senior Member Join Date: Jul 2014 Posts: 569 Likes: 36 Liked 53 Times in 38 Posts	Re: Header tube size for 327-350 Must be top secret. Or there's not a Chevy on this site.

03-17-2017, 04:34 PM	#3
SSDiv6 VIP Member Join Date: Feb 2003 Location: Glendale, Arizona Posts: 3,036 Likes: 710 Liked 1,538 Times in 575 Posts	Re: Header tube for 327-350 You will not get a straight answer because the question is open ended. There are too many variations of Chevy 327 and 350 engines throughout the years. Some 2-bbl and others 4-bbl, not taking into account the FI engines. The requirements are also effected by the type of cylinder head, compression and camshaft specs. If you have a specific engine year and horsepower rating, you might get a response. I you are curious, you can also purchase a copy of the PipeMax software and put your specs and it will break down the header requirements for the particular data you enter.

03-17-2017, 07:14 PM	#4
monte385 Junior Member Join Date: Oct 2015 Posts: 60 Likes: 44 Liked 27 Times in 19 Posts	Re: Header tube for 327-350 Burns stainless has a form you can fill out & they will give a recommendation, for a price I think, & yes Pipemax. 4-2-1 or 4 into 1? I built a set of 4-2-1 for my 421 street engine but never tested against anything else.

03-18-2017, 03:17 PM	#5
Coleydog Senior Member Join Date: Jul 2014 Posts: 569 Likes: 36 Liked 53 Times in 38 Posts	Re: Header tube for 327-350 Just remembered I have an old "Smokey" book, I'll reference that. Thanks anyway.

03-18-2017, 06:44 PM	#6
Alan Nyhus VIP Member Join Date: Dec 2002 Location: Lower Dakota territory Posts: 1,180 Likes: 1,074 Liked 799 Times in 236 Posts	Re: Header tube for 327-350 What's your combination? -Al __________________ "That'll never work....."