Inside Diameter of 1 3/4 headers?
Thread Starter
TECH Enthusiast
iTrader: (8)
Joined: Apr 2008
Posts: 555
Likes: 0
From: Tampa/Valrico, FL/ Chicago, IL
Inside Diameter of 1 3/4 headers? im asking this because im in the middle of porting my heads and i dont have the headers yet they should be here sometime at the end of the week but i need the heads done by wednesday to get them to the machine shop so i was just wondering if the inside diameter of the header was actually 1 3/4 or is it a little bigger i used a mic and the gasket is 1.816 inches so i just want to make sure the header is aither a little bigger or the same size
thanks
thanks
On The Tree
Joined: Feb 2007
Posts: 128
Likes: 0
From: Victoria, TX.
The gasket is probably a bit bigger than the actual diameter of the primaries. If the inside diameter is not 1 3/4" then its going to be damn close to that. Again im not sure on either but I do believe I am right here, hope this helps.
Inside diameter should be 1-3/4". Thats where they come up the that measurment.
You want the gasket a little bigger than the primary so the exhaust doesnt burn the gasket away from covering the exhaust port...its perfectly normal.
You want the gasket a little bigger than the primary so the exhaust doesnt burn the gasket away from covering the exhaust port...its perfectly normal.
All exhaust tubing is measured on the outside diameter. So the inside diameter of the header also depends on how thick the material each header manufacturer uses. Most use .049 or .065 thick steel. So it would be 1.652" or 1.62". Hope this helps.
Really? Good to know... I honestly thought that tubing was measured on Insite Diameter... hu. Learn something every day...
Agreed, every header I've measured (Kooks, Pacesetter, ARH, etc) are all measured OD.
__________________
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Trending Topics
Thread Starter
TECH Enthusiast
iTrader: (8)
Joined: Apr 2008
Posts: 555
Likes: 0
From: Tampa/Valrico, FL/ Chicago, IL
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0
Brett Foote
