KOOKS NEW 2" RACE HEADER

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Aug 24, 2007 | 10:04 PM

#21

JDP

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From: Allen Park, MI

think the 2 inch would be a better choice than 1 7/8 on a 402 thats going to see a good amount of spray, or is it overkill on that small of a motor

Aug 24, 2007 | 10:08 PM

#22

ZLEEPER

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From: spring, TX

Quote:

Originally Posted by JDP

think the 2 inch would be a better choice than 1 7/8 on a 402 thats going to see a good amount of spray, or is it overkill on that small of a motor

X2 I would like to know this as well.

Aug 25, 2007 | 07:50 AM

#23

ShiznityZ28

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From: GB MD

It depends on what a good amount of spray is. LOL my car picked up from straight 1 7/8 to 1 7/8-2 " stepped. last year on the 400 shot. Im pretty sure these will pick up again. but if not i still have my stepped headers. But kooks have a great design and id bet as long as you have 400+ cubes and at least a 200 shot it will not hurt anything.

we put my headers on a 427 all motor car runs 10.0 @ 138 on the motor and it did not loose anywhere over the 1 7/8 straights so id bet add a 200 shot and theres enough exhaust need for the bigger tubes.

Aug 25, 2007 | 10:24 PM

#24

ZLEEPER

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From: spring, TX

what about for n/a. I will have a 200 shot, but typically don't use it unless going to the track. Are 2" going to be overkill na on a dialy driver that occasionally goes to the track?

Aug 30, 2007 | 08:03 PM

#25

Beast96Z

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From: Shreveport, LA

You'll need big cubes and alot of spray to back up a 2" header. I personally believe that a 2" would be a bit big in the 450 ci range N/A. I got the 1 7/8" stepped to 2" for my 454 n/a build. I'd stick with the stepped until it is a restriction just for the scavenging.

Aug 30, 2007 | 11:27 PM

#26

studderin

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From: Rochester, NY

Is that the pic of them? 7-8 look shorter, unless theres a hidden loop in there?
I wish I had a motor that could use this,

Sep 7, 2007 | 08:33 PM

#27

squealingtires

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From: Dayton, Ohio

George,
Will Kooks have any offerings for headers purposed for the new Tall deck (GM-LSX and World Castings-Warhawk) blocks. What vehicle platforms will be produced first? Production timeframe estimates?

Sep 29, 2007 | 10:59 PM

#28

1fstGM

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From: California

Received my 2" to 3 1/2 last week. These things look great. I will let you guys know how they fit soon here.

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Oct 1, 2007 | 09:15 PM

#29

john_sblendorio

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From: Texas / 427ci F1R 1,002 rwhp/928 rwtq

would a blown 427 be a good candidate for these?

Oct 4, 2007 | 10:20 PM

#30

adams2003

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Ive emailed kooks twice and sent them a pm as well about getting a set of headers made and they have yet to get back to me on any of them......not what I call great customer service.

Oct 4, 2007 | 10:48 PM

#31

Frans96SS

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From: New Castle Del.

How about something bigger than 1 3/4 stepped to 1 7/8 for the LTX crowd?....

Oct 6, 2007 | 08:48 AM

#32

Steve Burger

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From: Out on the farm in Central IL

How will these fit with a Mad Man mid plate?

Oct 6, 2007 | 11:06 AM

#33

slmdLS1

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From: Tallahassee, Florida

also interested for my 408(n/a currently, 200 shot later). its a daily driver and i know i need new LT's, i almost pulled the trigger on the 1-7/8" stepped to 2" set earlier this week and will now wait to hear some results of these especially for the smaller big cube motors.

Oct 6, 2007 | 11:53 AM

#34

JL ws-6

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anything less then 427 ci and I don't think these are needed unless you're also running a blower, or are spraying 400 hp of juice.

for a 440+ ci lsx, these are a shoe in IMO