Longtubes+duals on 4th gen
12-04-2018, 10:27 AM
#1
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Thread Starter
Longtubes+duals on 4th gen Installing a set of no name stainless longtubes and speed engineerings duals dumped over the axle set up within the next few days. I’ve done a few header installs more recently my C6 Z’s. All of which were done in my garage on jackstands.
Is there anything special for a 4th gen LS1?
Already have o2 harness extensions and new header gaskets as well as hp tuners to turn the rear o2s off. Hoping to have it done this weekend since this is my daily.
Is there anything special for a 4th gen LS1?
Already have o2 harness extensions and new header gaskets as well as hp tuners to turn the rear o2s off. Hoping to have it done this weekend since this is my daily.
12-04-2018, 03:59 PM
#3
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Thread Starter
how is common is it for the engine to need to be lifted?
12-05-2018, 11:23 PM
#6
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Your stock manifolds should come out easy, but the no name headers will be a pia to put them in get the speed engineer headers they are bigger but have way way more clearance between body and headers
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12-08-2018, 07:36 PM
#8
Pacesetters went right in. Driver side floor board was a little close but I didn't have to remove anything major that I remember. Relatively easy install
Oh and same with my dads ebay stainless steel headers and y pipe. He had the driver side done by the time I drove to his house and he was like 55 at the time. That was 5 years ago. He still has no leaks and they actually look really cool as they've turned kinda metallic/mirror blue/gold over the years
Oh and same with my dads ebay stainless steel headers and y pipe. He had the driver side done by the time I drove to his house and he was like 55 at the time. That was 5 years ago. He still has no leaks and they actually look really cool as they've turned kinda metallic/mirror blue/gold over the years
12-11-2018, 06:19 PM
#10
I would take this word "easier" with a grain of salt. It makes getting the headers in easier for sure. But replacing my motor mounts was by far my least favorite job on the car. I am very happy I did it because it needed it, but i've probably said more curse words over that day and a half it took to do both jobs than I ever have in a weeks time.
12-16-2018, 03:31 PM
#11
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Thread Starter
Ended up replacing the no names with some SE 1 7/8 longtubes. Headers are on but now I’m trying to get the rest on. From reading all the threads I knew the hardware was junk. Gave it a whirl anyways. Clamps won’t tighten enough to hold anything and I broke a bolt. I bought grade 8 bolts but didn’t even notice that they are only partial thread and not enough to tighten the clamps on. I’ve gone to Lowe’s and Home Depot and neither sell grade 8s in full thread bolts. What am I missing here? Are grade 8 full threads not a thing or?
Also my kit only came with 6 clamps and I need one more-hopefully speed engineering will send me another.
Also my kit only came with 6 clamps and I need one more-hopefully speed engineering will send me another.
12-16-2018, 06:11 PM
#12
Launching!
Thread Starter
Ended up replacing the no names with some SE 1 7/8 longtubes. Headers are on but now I’m trying to get the rest on. From reading all the threads I knew the hardware was junk. Gave it a whirl anyways. Clamps won’t tighten enough to hold anything and I broke a bolt. I bought grade 8 bolts but didn’t even notice that they are only partial thread and not enough to tighten the clamps on. I’ve gone to Lowe’s and Home Depot and neither sell grade 8s in full thread bolts. What am I missing here? Are grade 8 full threads not a thing or?
Also my kit only came with 6 clamps and I need one more-hopefully speed engineering will send me another.
Also my kit only came with 6 clamps and I need one more-hopefully speed engineering will send me another.
update: Found some online for just under $10 but it’ll take a few days for them to arrive so I’m hoping to find a place in town tomorrow that has them in stock. Need the car up ASAP since it’s my daily and my trucks killing me on fuel.
12-17-2018, 07:06 AM
#13
With my SE true duals, I used Walker Mega-Clamp band clamps where I could but other areas I used the SE clamps and bolts and tightened them down with long extensions, swivel sockets and my breaker bar. It takes a ton of force to close up those pipes and I didn't break any of the bolts.
12-20-2018, 12:00 AM
#15
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Thread Starter
I haven’t had a chance to tuck the exhaust in higher but tonight going into a gas station I misjudged those ports in the ground and my exhaust came off. Definitely getting this welded as soon as I can. 55 miles from home and trying to get it back on the car without a jack or tools isn’t fun.