Results 1 to 1 of 1
-
01-16-2009, 05:30 PM #1
- Join Date
- Aug 1999
- Location
- Arizona
- Posts
- 51,364
Black- 383 Procharged & N20 Vert
Big Block Chevy Headers - Header Test
Big Block Chevy Headers - Header Test
Using a 700hp 540 Chevy, we test a bunch of different headers to show how primary pipe and collector sizes make a difference in power.There's been a lot written about optimizing header design, but most of us can't afford one-off, custom-built, ideal-for-the-combination headers. Realistically, we use what we can buy over the counter. At least for popular V-8 engines and chassis, major header companies such as Hooker (a division of Holley) often offer a whole passel of tube sizes. This is definitely the case for the venerable big-block Chevy, on which we recently had the opportunity to put five different header sizes to the test on Westech Performance's SuperFlow 902 engine dyno. The headers had primary tubes ranging from 13/4 all the way to 21/4 inches, including one set with adjustable, variable-length primaries.
Photo Gallery: Big Block Chevy Header Horsepower Test - Hot Rod Magazine
Read More | Digg It | Add to del.icio.us
More...
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
Chevy Small-Block, Big-Block & Transmission Buildi
By Ed Blown Vert in forum Camaro / SSReplies: 0Last Post: 11-20-2009, 01:50 PM -
Crash Test: 1959 Chevy Bel-Air VS. 2009 Chevy Mali
By gd1996 in forum Almost Anything GoesReplies: 7Last Post: 09-16-2009, 07:25 PM -
Performance wise, test proven best header for LS1?
By midi_2001 in forum External EngineReplies: 49Last Post: 12-02-2007, 04:57 PM -
Leak Down Test, Faulty Header Gasket?
By Jon7I2 in forum Internal EngineReplies: 3Last Post: 02-24-2007, 04:24 PM -
454 Crate Engine Nitrous Test - Big Bad Big Block
By Ed Blown Vert in forum Almost Anything GoesReplies: 0Last Post: 09-15-2006, 07:27 AM
Bookmarks