2" or 1.75" Primaries???
2" or 1.75" Primaries??? need exhaust for my motor.....and the only company that makes headers that fits is Stainless Works, and they only offer 1.75 or 2" primaries. Rev limit at 7k, 150 shot of n2o, stock ls3 heads/intake, aggressive cam.
What do you think? the 2" headers will be about ~$250 more than the 1.75
What do you think? the 2" headers will be about ~$250 more than the 1.75
need exhaust for my motor.....and the only company that makes headers that fits is Stainless Works, and they only offer 1.75 or 2" primaries. Rev limit at 7k, 150 shot of n2o, stock ls3 heads/intake, aggressive cam.
What do you think? the 2" headers will be about ~$250 more than the 1.75
What do you think? the 2" headers will be about ~$250 more than the 1.75
Wow, that's a good question. I'd try asking in the dyno section. Do know that a lot of guys w/ ls3's swear by 1-7/8" primaries. IDK, what the effect of 2" would have. Exhaust flow get kinda "fuzzy" to me when the gurus start talking about "best pressure/scavaging/flow" relationships.
Might also try in the "advanced discussion" section. There are still a few guys, who hang out in there, that know there **** & have been around forever.
Good-luck w/ this & let us know what you end up doing & HP/TQ results if possible.
TECH Fanatic
Joined: Sep 2007
Posts: 1,244
Likes: 7
From: hattiesburg, Ms
1 3/4 will be the best. 2 inch primaries are way too big for a 370 street motor and will lose a **** ton of low end. Plus there could be fitment issues because of the extra primary size. Bigger is not always better.
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I asked the same question a long time ago and there was a guy who responded to my thread and he was using 2 inch on a 370 and he reported no loss and the car felt good. Here you go post 10.
https://ls1tech.com/forums/generatio...body-done.html
https://ls1tech.com/forums/generatio...body-done.html
^^Jim, i did the same thing and they said they will not make any other headers for individual people, they have a contract with Bruce over at Hawks.
I think i'm going to get the 2"....Bruce is giving me a deal on them and they will be the last headers i'll ever buy for the camaro, should leave me plenty of room to grow lol
I think i'm going to get the 2"....Bruce is giving me a deal on them and they will be the last headers i'll ever buy for the camaro, should leave me plenty of room to grow lol
I even worded it to be clear that I am just as happy to buy the headers through Hawks if necessary, but so far still no response. It looks like I need to decide between 1 3/4 or 2".
Seems to me that most people's setups cannot take advantage of the larger primaries. I have seen my share of examples and most times there was not a benefit. It did not hurt it but nothing overwhelming. But again thats my opinion.
But as long as you do not mind dealing with fitment, you should be fine.
But as long as you do not mind dealing with fitment, you should be fine.
