MY Ebay LT Header Install...
05-02-2010, 05:52 PM
#1
MY Ebay LT Header Install... Ok afew weeks ago i bought a set of stepped stainless LT headers off the ebay store ap1ap2. I picked those afew reading up on an old post on the forums about someone else using them. When i received them i was very impressed with the overall quality of the headers. They were just as advertised. 1 3/4" to 1 7/8" with a .500" flange.
I had known in advance that there was going to be abit of "persuasion" in this header install. Keep in mind these are $310 shipped!
Drivers Side: This side required abit of a beating on the primaries but the K-member under the steering linkage. My K-member is stock so im sure people with aftermarket K-members might not run into this problem. Another hurdle for this side was the steering knuckle. I had to do abit of everything to allow for clearance on this. The first was i had loosened the 3 bolts that hold the steering shaft to the body and moved it as far out of the way as possible. Secondly was to dent the primary a fair ammount followed by grinding the knuckle down some. It wasnt something i wanted to do but i had to. after that the header bolted up free and clear with ample spark plug room and oil filter clearance. P.S. This headers flange did have a slight high spot to it! I installed these headers at night and only had a sanding block and a small grinder to work with but i got it very good and had no leaks! This is also using the supplied header gaskets!
Passenger Side: This side also required abit of bashing with a large hammer to fit right. But not as much as the drivers side. The only real spot where this header hit was on the #8 primary. It was hitting the body of the car. Pretty badly too! I had flattened out the primary to give me around .250" of clearance. It also took alittle around the K-member again to fit but it wasnt that bad.
Y-Pipe: Is very well constructed. All ends mate up very well and tightly. Attaching it to the headers required nearly no effort. I did silicone all 3 joints where it require clamps and used "pypes" style band clamps. (part #PYE-HVC24) I highly recommend them! there a very good clamp. It tucks up very nicely and leaves plenty of ground clearance.
my car isnt lowered, and i have more then enough ground clearance. Ive been driving around with it for afew days now and speed bumps and pot holes arent a problems.
First Impressions: Mine are very strong about these headers. Theyre cheap, Well made, and fit fairly well.. It added a very powerful note to my exhaust and Definitely increased power substantially! An easy 10-15 hp up top, and they smoothed out my whole power band. A very nice increase over my Mac Mids. They made my car Alot louder however. As a result i had to quiet it down some with a new muffler. My magnaflow and classic chambered muffler just werent going to cut it where i live. So i purchased a Hooker Super comp muffler to take its place out back.
Sorry i do not have any videos yet because my cameras mic is nearly dead. With the new muffler its much more reserved. when i go wide open on it tho it has a very nice scream to it! I didnt install my cutout but in the near future i feel like i will definitely be needing to do so. Im sorry if i had made this to long. i just wanted to get my whole experience down. I love them!
And heres alittle eye candy for everyone! its not an LT1 but it was at the gas station today when i was filling up!
An all original #'s matching 1990 ZR1! it was immaculate!
I had known in advance that there was going to be abit of "persuasion" in this header install. Keep in mind these are $310 shipped!
Drivers Side: This side required abit of a beating on the primaries but the K-member under the steering linkage. My K-member is stock so im sure people with aftermarket K-members might not run into this problem. Another hurdle for this side was the steering knuckle. I had to do abit of everything to allow for clearance on this. The first was i had loosened the 3 bolts that hold the steering shaft to the body and moved it as far out of the way as possible. Secondly was to dent the primary a fair ammount followed by grinding the knuckle down some. It wasnt something i wanted to do but i had to. after that the header bolted up free and clear with ample spark plug room and oil filter clearance. P.S. This headers flange did have a slight high spot to it! I installed these headers at night and only had a sanding block and a small grinder to work with but i got it very good and had no leaks! This is also using the supplied header gaskets!
Passenger Side: This side also required abit of bashing with a large hammer to fit right. But not as much as the drivers side. The only real spot where this header hit was on the #8 primary. It was hitting the body of the car. Pretty badly too! I had flattened out the primary to give me around .250" of clearance. It also took alittle around the K-member again to fit but it wasnt that bad.
Y-Pipe: Is very well constructed. All ends mate up very well and tightly. Attaching it to the headers required nearly no effort. I did silicone all 3 joints where it require clamps and used "pypes" style band clamps. (part #PYE-HVC24) I highly recommend them! there a very good clamp. It tucks up very nicely and leaves plenty of ground clearance.
my car isnt lowered, and i have more then enough ground clearance. Ive been driving around with it for afew days now and speed bumps and pot holes arent a problems.
First Impressions: Mine are very strong about these headers. Theyre cheap, Well made, and fit fairly well.. It added a very powerful note to my exhaust and Definitely increased power substantially! An easy 10-15 hp up top, and they smoothed out my whole power band. A very nice increase over my Mac Mids. They made my car Alot louder however. As a result i had to quiet it down some with a new muffler. My magnaflow and classic chambered muffler just werent going to cut it where i live. So i purchased a Hooker Super comp muffler to take its place out back.
Sorry i do not have any videos yet because my cameras mic is nearly dead. With the new muffler its much more reserved. when i go wide open on it tho it has a very nice scream to it! I didnt install my cutout but in the near future i feel like i will definitely be needing to do so. Im sorry if i had made this to long. i just wanted to get my whole experience down. I love them!
And heres alittle eye candy for everyone! its not an LT1 but it was at the gas station today when i was filling up!
An all original #'s matching 1990 ZR1! it was immaculate!
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05-29-2010, 02:14 AM
#10
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05-29-2010, 10:24 AM
#11
Wow im surprised to see so many people posting to this thread now lol
I removed my plastic over along time ago when i tightened up my rag joint. but the entire knuckle assembly was very close to it.
Yeah that LT5 was mint! the guy says he drives it all the time too. and he wants to build a 427 lt5 
i Love my single exhaust. idk why more people just go that route. i dont care for the look of tips on camaros very much...
I do. shoot me a pm and well talk about it.
the passenger side header needed some fitting just where the primaries go next to the K-memeber and on the #8 primary where it swoops out. it hits the body of the car bad. but if you have the patience to take the header in and out afew times youll get it perfectly fine.
i Love my single exhaust. idk why more people just go that route. i dont care for the look of tips on camaros very much...
I do. shoot me a pm and well talk about it.
the passenger side header needed some fitting just where the primaries go next to the K-memeber and on the #8 primary where it swoops out. it hits the body of the car bad. but if you have the patience to take the header in and out afew times youll get it perfectly fine.
05-29-2010, 10:44 AM
#12
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the passenger side header needed some fitting just where the primaries go next to the K-memeber and on the #8 primary where it swoops out. it hits the body of the car bad. but if you have the patience to take the header in and out afew times youll get it perfectly fine.
11-26-2010, 05:52 PM
#17
Sorry for not having the ability to post up vid;'s when i did just the LT's... as stated, i just built a new Y-pipe and have my exhaust Exactly the way i want it. those LT's, my custom Y, a classic chambered muffler in the I pipe and a hooker aerochamber in the back. Im working on a new cutout aswell.
http://www.youtube.com/watch?v=VbqKWpHrrnU
http://www.youtube.com/watch?v=VbqKWpHrrnU
01-22-2011, 01:17 PM
#18
Back from the dead
Thanks for posting a detailed install thread. I'm thinking about getting these unless LPP comes up with a new batch.
Or else there is a set of OBX headers that have a 3.5" collector
but they are about $400 shipped and I'm lowered quite a bit and I don't know about the bigger collectors, and for $300 or so I'm not worried about modifying them to fit and I should have my k member when I get the new headers. I'm sick of my leaky, rusty, and bashed up hookers 
Thanks for posting a detailed install thread. I'm thinking about getting these unless LPP comes up with a new batch.
Or else there is a set of OBX headers that have a 3.5" collector
but they are about $400 shipped and I'm lowered quite a bit and I don't know about the bigger collectors, and for $300 or so I'm not worried about modifying them to fit and I should have my k member when I get the new headers. I'm sick of my leaky, rusty, and bashed up hookers 
