DJB

iTrader: (15)

Category: Engine - Exhaust
Price: $0
Location (State): MI
Item Condition: Used
Engine: LS1/LS6
LS Engine?: Fits LS Engine

I have a set of 1 7/8 Speed Engineering headers I installed less than a year ago. I want to buy some 1 3/4 or trade the 1 7/8 for a set. Or, I'm willing to sell the 1 7/8 so I can buy new 1 3/4 headers.

HCI2000SS

iTrader: (2)

I'm in MI as well and might be interested. I have Pacesetter 1 3/4" headers. Why do you want to switch?

taman86

iTrader: (19)

Interested as well. I have a pair pacesetter 1 3/4 long tubes race version. I can trade with a bit of cash but I daily drive mine and would need yours first

Snake_Skinner

iTrader: (12)

Highly interested here too, I got some 1 3/4th pacestters race version ceramic coated bnib( also got the texas speed y pipe to, all still in plastic wrapping). Pm me and let me know how we can make this happen

5.7stroker

iTrader: (36)

I just bought some SE 1 7/8" headers that I'll be installing soon. I'll have a set of pacesetter 1 3/4 coated race version LT's that will be for sale soon. Maybe one of the posters above would be interested in purchasing them off me as a back up set in the event that they switch to the 1 7/8 SE headers and decide that they want to switch back to the Pacesetters?

EDIT: On 2nd thought, what if I decide I want to switch back?

Whoops, false alarm, I'll be hanging onto my Pacesetters after all until I can confirm fitment of SE headers and their Y works with my new MWC tunnel mount TA. I may need that Texas Speed Y if the SE Y gives me a problem.

Good luck with the trades boys and good looking out.

BrittleSpeed

iTrader: (1)

Can I ask the reason behind going with a smaller header when you already have a set of LTs?

Sorry, off topic

5.7stroker

iTrader: (36)

For me, it's because of personal experiences like this:

HCI2000SS

iTrader: (2)

I'm hoping his reason is something like this, because I can't see any other good reason to downsize lol

NoHope

Am I better off with 1 3/4 in headers then? I bought mine before I ever considered camming the car.

Chrisingermany

I was a huge fan of bigger headers and currently have a set of coated hooker 1 3/4". I have been wanting to bigger for a while and was sure all this talk about bigger hurts low end was BS. I'm not sure if you guys are familiar with the Engine Masters series but on episode 12 they took a 500ish crank HP motor and did a 1 5/8" vs 1 3/4" vs 1 7/8" and to my surprise the 1 3/4" were the clear winner. I was a big fan of 1 7/8" and was even considering the TSP 2" primaries but now...not so much.

HCI2000SS

iTrader: (2)

This is a highly debated topic. I'm not so convinced the larger primaries always result in better power, as do the better design in general. From collector design, length, etc...

taman86

iTrader: (19)

Look up this topic in the dyno section. The 1 7/8 have been known to be better performers then 1 3/4 but torque band does come on a tad later in the power band. So when you're used to being able to pull in low rpm range in traffic, say 1200 to 1500 rpms, but now its a dog and feels like it has no power until 2000 or 2500 rpms then its a significant difference and some ppl may not like that feeling. Its entirely up to the individual how they want their car to perform and feel. Not one size is better then the other so to speak

HCI2000SS

iTrader: (2)

Looks like the OP has logged in a few times since he's made this thread, but obviously hasn't responded. Seems kind of odd........

DJB

iTrader: (15)

I had pacesetter 1 3/4 and hooker catback for 10 years. I switched to 1 7/8 SE and Magnaflow last year in September/October. From day 1 I could feel the loss in the midrange. Now I'm going to switch back to 1 3/4 because I don't plan on going with larger cubes. I ordered SE 1 3/4 last night, so these will be for sale when I remove them.

HCI2000SS

iTrader: (2)

So with the current build in your signature with 414 rwhp you felt a noticeable loss in the midrange?

5.7stroker

iTrader: (36)

I've got 4.10s and a 4000 stall, it's not taking me long to get to 2000 rpms.....

taman86

iTrader: (19)

Exactly what I was talking about. Pm me a price shipped to 85546 for the 1 7/8 headers. Maybe we can work out a deal

DJB

iTrader: (15)

Yes I lost midrange with the combination in my signature. You have a 370, so you may benefit from the 1 7/8 headers.

HCI2000SS

iTrader: (2)

This is definitely good to know. Honestly I don't think having the the 370 will make much difference since the heads were basically designed for a LS1. The midrange loss would probably be similar (all else being equal of course) between the the 5.7 and 6.0 except the bottom end torque is a little stronger with the 370. Not much but a little

handyandy496

iTrader: (9)

A GOOD 1-3/4 (with no welds in the way(check this) tube is fine. But If you have gears or a stall or more cubes. Go with 1-7/8. From what I have seen 2" tubes can really kill the low end torque even in an over 430 cid engine w/std trans. Down like 35 lbs torque for 4 more hp at the top end with a big cam.