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Which headers for 370ci 1 3/4 or step 1 7/8?

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Old 02-08-2007, 11:15 AM
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Default Which headers for 370ci 1 3/4 or step 1 7/8?

I'm looking at getting some new headers for the new motor and i need to know which size would best fit my build. Mostly for motor and will spray the car from time to time.

TSP stage 2.5 heads
24x/.61x cam
LS6 intake
11:1 comp.
150 shot
Old 02-08-2007, 11:56 AM
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I would go with the 1 7/8 for sure. I use the straight 1 7/8 kooks on my z06 with pretty much stock engine and they work great. This is just my opinion but I believe most ls1 folks use too small of a header primary. BBC engines that flow the same cfm as many of these ls1s use 2" or larger primarys.
Old 02-08-2007, 12:04 PM
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Originally Posted by StreetStalkerZ
I'm looking at getting some new headers for the new motor and i need to know which size would best fit my build. Mostly for motor and will spray the car from time to time.

TSP stage 2.5 heads
24x/.61x cam
LS6 intake
11:1 comp.
150 shot
Id run the Edelbrock race headers. They are a cheap stepped header with a very nice (for the money) merge collector. Tri-Tech coated ones go for $400 bucks. Cant beat that for the performance for sure!
Old 02-08-2007, 12:51 PM
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i am going to use my 1 3/4" pacesetters that i have on my car now with my 370 l92. i might step up to the edelbrock if i feel the need. if you already have some them i would run them.
Old 02-08-2007, 12:52 PM
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1 7/8 is what I have on my 370.

I'm thinking of going to 1 7/8 stepped to 2"
Old 02-08-2007, 04:55 PM
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Originally Posted by V6 Bird
Id run the Edelbrock race headers. They are a cheap stepped header with a very nice (for the money) merge collector. Tri-Tech coated ones go for $400 bucks. Cant beat that for the performance for sure!
What sponsors or who sells the Edelbrock race headers?
Old 02-08-2007, 07:58 PM
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Originally Posted by StreetStalkerZ
What sponsors or who sells the Edelbrock race headers?
I always buy from jegs or summit. They always have them and I get them in 2 days.
Old 02-09-2007, 05:01 PM
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I'd go with the stepped. Kook's and Edelbrock both make them, but the edelbrocks come in cheaper.
Old 02-10-2007, 01:11 PM
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I always buy from jegs or summit. They always have them and I get them in 2 days.
Took a month to get mine..(backorder)But it was worth it. These headers and y-pipe look really good. They also come with 02 ext. ,gaskets, and all the bolts.

I payed about $620

When I get to work monday I'll try to put some pics up.
Old 02-11-2007, 01:47 PM
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edelbrock #65703.




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