01-03-2016, 07:11 AM | #1 |
Registered User
Join Date: May 2014
Location: England
Posts: 46
|
Which Headers ?
I am part way through installing a ZZ4 crate motor in my 59 Apache.
It has stock front suspension with Posies 3" drop front springs and I am also adding the CPP Toyota style power steering at the same time. Everything was going ok - slow but ok !! But, Header fitment seems a little tricky, I have a set of Patriot shorty headers which hit the steering box, as a temporary measure I have purchased a set of Speedway's Rams Horn manifolds - but there is a slight port mismatch with these. People running this engine/exhaust combo on the Corvette forums seem happy with the way their cars run so maybe all is ok. Anyone running a similar combo ? Your thoughts ? [IMG][/IMG] [IMG][/IMG] |
01-03-2016, 09:24 PM | #2 |
Registered User
Join Date: Sep 2014
Location: Austell, Georgia
Posts: 162
|
Re: Which Headers ?
Watching
|
01-03-2016, 11:06 PM | #3 |
Registered User
Join Date: Jul 2015
Location: Bryantown, MD
Posts: 33
|
Re: Which Headers ?
Wouldn't original or even reproduction factory style exhaust manifolds with the 2 1/2 inch diameter outlet look, fit, flow, as well or better than the Speedway rams horn headers? They were good enough for the hi-performance Corvettes.
|
01-04-2016, 01:23 PM | #4 |
Registered User
Join Date: Jun 2006
Location: Idaho
Posts: 8,800
|
Re: Which Headers ?
Still allowed and used in Stock drag racing classes, and for most engines with relatively mild cams they flow just about as well at normal operating RPM.
__________________
1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project |
01-04-2016, 07:08 PM | #5 |
Registered User
Join Date: Mar 2012
Location: Lakes Region NH
Posts: 3,200
|
Re: Which Headers ?
The large aftermarket ram's horns aren't bad for a mild engine. You might get better port alignment with a set of 92~ish Vette factory manifolds.
Pacesetter also makes a set of shorties that will probably fit those ports better. P/n 70-1340 Last edited by 1project2many; 01-04-2016 at 07:16 PM. |
Bookmarks |
|
|