Kooks 2" or 1 7/8" x 2" Stepped Headers
11-19-2012, 06:25 PM
#1
Kooks 2" or 1 7/8" x 2" Stepped Headers Maryland Speed has some great prices on their headers this week.
Lowest I've ever seen. Black Friday Sale.
I need some opinions on which to get. 2" or 1 7/8" x 2" stepped headers.
Mods are in my sig.
Thanks
Lowest I've ever seen. Black Friday Sale.
I need some opinions on which to get. 2" or 1 7/8" x 2" stepped headers.
Mods are in my sig.
Thanks
11-20-2012, 12:19 PM
#4
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I've got a set of 2" Kooks on my car and it clears everything fine. I do have an MWC k-member though. Only complaint I have about them is that the drivers side hangs pretty low. I've thought about trying a set from ARH to see if their ground clearance is better.
11-20-2012, 01:03 PM
#5
I would go with the straight 2", Im guessing those heads have a pretty big exhaust port. Over 400 cubes and a 5k+ stall you wont gain anything anywhere with the stepped header. Im using 2" on my setup as well was recommended it by a nuber of people over the stepped
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11-21-2012, 09:47 PM
#10
I have Edelbrock 1 3/4" x 1 7/8" on there now, left over from my old 382.
But, I don't think there big enought for the 418. I always heard that the stepped header was better for torque more than hp. So I'm thinking the 2" would be better for more hp on a all out race car. This motor will be seeing 7000 rpm's all the time.
But, I don't think there big enought for the 418. I always heard that the stepped header was better for torque more than hp. So I'm thinking the 2" would be better for more hp on a all out race car. This motor will be seeing 7000 rpm's all the time.
11-22-2012, 08:31 AM
#13
Improved scavenging and velocity with virtually no loss of flow. As the exhaust goes down the tube it expands. Ever take a look at a serious series racing header (that allows stepped headers)? Some F1 cars have 4 or 5 steps on them. The actual head exhaust port is slightly smaller then 1 5/8"
Here's a good article on it, explaining it more technically.
http://thehorsepowerjunkies.com/gene...epped-headers/
Here's a good article on it, explaining it more technically.
http://thehorsepowerjunkies.com/gene...epped-headers/
11-22-2012, 09:10 AM
#14
Improved scavenging and velocity with virtually no loss of flow. As the exhaust goes down the tube it expands. Ever take a look at a serious series racing header (that allows stepped headers)? Some F1 cars have 4 or 5 steps on them. The actual head exhaust port is slightly smaller then 1 5/8"
Here's a good article on it, explaining it more technically.
http://thehorsepowerjunkies.com/gene...epped-headers/
Here's a good article on it, explaining it more technically.
http://thehorsepowerjunkies.com/gene...epped-headers/
But on a highly modified car maybe not so. You would need some custom headers built for your modifcations.
So that was the reason I was asking. I think I'm going with the 2" headers.
Happy Thanksgiving everyone!
11-23-2012, 06:51 AM
#17
Calvin Elston.
http://elstonheaders.com/
Don't play around. Big tubes make good peak numbers but are not the fastest down the track.
http://elstonheaders.com/
Don't play around. Big tubes make good peak numbers but are not the fastest down the track.
