# LS1 owners inside....think I found something... **URL:** \ **Category:** Shift518 Automotive\ **Created:** [May 29, 2008, 2:19pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074 "2008-05-29T14:19:02Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![SSmokinn\_SS](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@SSmokinn\_SS](https://forums.speedlife.net/u/SSmokinn_SS)\ **Post date:** [May 29, 2008, 2:19pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/1 "2008-05-29T14:19:02Z")
Well, im doing my header install right now (headers come in tomarrow so im taking off the factory ones tonight) which, i have only been working on it for almost 2 hours and have all the coil packs off, plug wires and almost all the manifold bolts out…well i noticed some funny engraving on each one of my head’s… Passenger side header has a H something engraved into it…hard to read…the driver side just has a K. These were engraved with a Dremel because they are messy and deff. arent factory… is it possible the heads are ported or something?? The header bolts are comming out pretty damn easy, like they have been off the car before…its taking me almost no effort to get them off…I know from quad racing when we have our cylinders ported, the companys that port them, engrave initials into them. ---
**Author:** ![bennyfizzle](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bennyfizzle/32/6291_2.png) [@bennyfizzle](https://forums.speedlife.net/u/bennyfizzle)\ **Post date:** [May 29, 2008, 2:20pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/2 "2008-05-29T14:20:54Z")
you post up on ls1tech or something? ---
**Author:** ![plaf713](https://avatars.discourse-cdn.com/v4/letter/p/439d5e/32.png) [@plaf713](https://forums.speedlife.net/u/plaf713)\ **Post date:** [May 29, 2008, 2:22pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/3 "2008-05-29T14:22:50Z")
to be honest with you a doubt it, my header bolts came out really easy, just gettin them in was a little hard :lol If you have ported heads chances are you would have a cam, ive never heard of anyone in the ls1 community ever putting on ported heads without putting a cam in it, it wouldnt make sense, you wouldn’t see much of a gain from just heads especially since your stock cam would not provide enough lift to even get some good numbers out of the head, besides you trap speeds say it all. What did you trap a 104? thats pretty much what you should be trapping. ---
**Author:** ![Jimmerz](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jimmerz/32/6370_2.png) [@Jimmerz](https://forums.speedlife.net/u/Jimmerz)\ **Post date:** [May 29, 2008, 2:27pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/4 "2008-05-29T14:27:32Z")
> [@SSmokinn SS](#): > > Well, im doing my header install right now (headers come in tomarrow so im taking off the factory ones tonight) which, i have only been working on it for almost 2 hours and have all the coil packs off, plug wires and almost all the manifold bolts out…well i noticed some funny engraving on each one of my head’s… > > Passenger side header has a H something engraved into it…hard to read…the driver side just has a K. These were engraved with a Dremel because they are messy and deff. arent factory… > > is it possible the heads are ported or something?? The header bolts are comming out pretty damn easy, like they have been off the car before…its taking me almost no effort to get them off…I know from quad racing when we have our cylinders ported, the companys that port them, engrave initials into them. if their not factory could they be aftermarket replacement? ---
**Author:** ![SSmokinn\_SS](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@SSmokinn\_SS](https://forums.speedlife.net/u/SSmokinn_SS)\ **Post date:** [May 29, 2008, 2:27pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/5 "2008-05-29T14:27:58Z")
> [@plaf713](#): > > to be honest with you a doubt it, my header bolts came out really easy, just gettin them in was a little hard :lol > > If you have ported heads chances are you would have a cam, ive never heard of anyone in the ls1 community ever putting on ported heads without putting a cam in it, it wouldnt make sense, you wouldn’t see much of a gain from just heads especially since your stock cam would not provide enough lift to even get some good numbers out of the head, besides you trap speeds say it all. What did you trap a 104? thats pretty much what you should be trapping. I trapped 105.7 with alot of traction issues even on my 13.9, I trapped 105 ---
**Author:** ![Shawn96VR-4](https://avatars.discourse-cdn.com/v4/letter/s/eada6e/32.png) [@Shawn96VR-4](https://forums.speedlife.net/u/Shawn96VR-4)\ **Post date:** [May 29, 2008, 2:29pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/6 "2008-05-29T14:29:16Z")
> [@SSmokinn SS](#): > > I trapped 105.7 with alot of traction issues Sounds very low given your claims that it can walk on water? ---
**Author:** ![SSmokinn\_SS](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@SSmokinn\_SS](https://forums.speedlife.net/u/SSmokinn_SS)\ **Post date:** [May 29, 2008, 2:35pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/7 "2008-05-29T14:35:56Z")
> [@Shawn96VR-4](#): > > Sounds very low given your claims that it can walk on water? hmmm never made any outrageous claims like that…just said the LS1 is one of the top motors ever made. ---
**Author:** ![Shawn96VR-4](https://avatars.discourse-cdn.com/v4/letter/s/eada6e/32.png) [@Shawn96VR-4](https://forums.speedlife.net/u/Shawn96VR-4)\ **Post date:** [May 29, 2008, 2:37pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/8 "2008-05-29T14:37:11Z")
> [@SSmokinn SS](#): > > hmmm never made any outrageous claims like that…just said the LS1 is one of the top motors ever made. Guess you forgot about your stock “modifications” include flex capaciter and how it runs 12s bone stock bullshit? What was the ET on that 105.X trap? :ahh ---
**Author:** ![bennyfizzle](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bennyfizzle/32/6291_2.png) [@bennyfizzle](https://forums.speedlife.net/u/bennyfizzle)\ **Post date:** [May 29, 2008, 2:38pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/9 "2008-05-29T14:38:50Z")
some would say it’s probably one of the worst motors ever made, that’s why you can get gains out of it so easily. An LS1 that’s a bit freed up…now that’s a good motor. ---
**Author:** ![SSmokinn\_SS](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@SSmokinn\_SS](https://forums.speedlife.net/u/SSmokinn_SS)\ **Post date:** [May 29, 2008, 2:39pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/10 "2008-05-29T14:39:46Z")
> [@Shawn96VR-4](#): > > Guess you forgot about your stock “modifications” include flex capaciter and how it runs 12s bone stock bullshit? > > What was the ET on that 105.X trap? :ahh they have run 12’s bone stock…not going through this again lol ---
**Author:** ![Mk4\_30R\_Ban](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mk4_30r_ban/32/6347_2.png) [@Mk4\_30R\_Ban](https://forums.speedlife.net/u/Mk4_30R_Ban)\ **Post date:** [May 29, 2008, 2:40pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/11 "2008-05-29T14:40:56Z")
> [@Shawn96VR-4](#): > > Guess you forgot about your stock “modifications” include flex capaciter and how it runs 12s bone stock bullshit? > > What was the ET on that 105.X trap? :ahh id rather do 12s stock, or with small bolt ons, than run 12s with 550+ AWHP. ---
**Author:** ![K20power](https://avatars.discourse-cdn.com/v4/letter/k/41988e/32.png) [@K20power](https://forums.speedlife.net/u/K20power)\ **Post date:** [May 29, 2008, 2:41pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/12 "2008-05-29T14:41:19Z")
> [@Hooked on VAG](#): > > id rather do 12s stock, or with small bolt ons, than run 12s with 550+ AWHP. :rofl ---
**Author:** ![Shawn96VR-4](https://avatars.discourse-cdn.com/v4/letter/s/eada6e/32.png) [@Shawn96VR-4](https://forums.speedlife.net/u/Shawn96VR-4)\ **Post date:** [May 29, 2008, 2:41pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/13 "2008-05-29T14:41:42Z")
> [@Hooked on VAG](#): > > id rather do 12s stock, or with small bolt ons, than run 12s with 550+ AWHP. BTW, I went 12s with change found in my couch. :nono ---
**Author:** ![Mk4\_30R\_Ban](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mk4_30r_ban/32/6347_2.png) [@Mk4\_30R\_Ban](https://forums.speedlife.net/u/Mk4_30R_Ban)\ **Post date:** [May 29, 2008, 2:42pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/14 "2008-05-29T14:42:57Z")
> [@Shawn96VR-4](#): > > With that 105.XMPH trap, sounds like you didn’t do 12s **at all** :lol > > BTW, I went 12s with change found in my couch. :nono yup, and went through how many different setups to… run 12s again? ---
**Author:** ![94Gt5.0](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/94gt5.0/32/6377_2.png) [@94Gt5.0](https://forums.speedlife.net/u/94Gt5.0)\ **Post date:** [May 29, 2008, 2:43pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/15 "2008-05-29T14:43:50Z")
Might be junkyard heads…its a possibilty. Look into it, previous owner may have fucked the heads up and got some stock ones from a yard, who knows. ---
**Author:** ![SSmokinn\_SS](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@SSmokinn\_SS](https://forums.speedlife.net/u/SSmokinn_SS)\ **Post date:** [May 29, 2008, 2:44pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/16 "2008-05-29T14:44:12Z")
> [@Shawn96VR-4](#): > > BTW, I went 12s with change found in my couch. :nono wait wait…your ragging on me when you went 12’s with that much power? ---
**Author:** ![Shawn96VR-4](https://avatars.discourse-cdn.com/v4/letter/s/eada6e/32.png) [@Shawn96VR-4](https://forums.speedlife.net/u/Shawn96VR-4)\ **Post date:** [May 29, 2008, 2:44pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/17 "2008-05-29T14:44:32Z")
> [@Hooked on VAG](#): > > yup, and went through how many different setups to… run 12s again? Do I care about the track? Street son! BTW, what do YOU run again? :lol ---
**Author:** ![Shawn96VR-4](https://avatars.discourse-cdn.com/v4/letter/s/eada6e/32.png) [@Shawn96VR-4](https://forums.speedlife.net/u/Shawn96VR-4)\ **Post date:** [May 29, 2008, 2:45pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/18 "2008-05-29T14:45:01Z")
> [@SSmokinn SS](#): > > wait wait…your ragging on me when you went 12’s with that much power? I went 12s with a $20 in mods in a 4,000LBS car. But, my car isn’t a 12 second car like yours is. Err, is supposed to be? ---
**Author:** ![94Gt5.0](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/94gt5.0/32/6377_2.png) [@94Gt5.0](https://forums.speedlife.net/u/94Gt5.0)\ **Post date:** [May 29, 2008, 2:45pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/19 "2008-05-29T14:45:06Z")
I wish i got mine back to the track before i sold it, should have went 12.6-12.7 :sad ---
**Author:** ![SSmokinn\_SS](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@SSmokinn\_SS](https://forums.speedlife.net/u/SSmokinn_SS)\ **Post date:** [May 29, 2008, 2:45pm UTC](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074/20 "2008-05-29T14:45:23Z")
just talked to the previous owner on AIM…as himself, he never touched the heads…but he said he wasnt sure about the owner before him. [Next page](https://forums.speedlife.net/t/ls1-owners-inside-think-i-found-something/237074.md?page=2)