# Attention 5.3L LS1 People, Input Needed. **URL:** \ **Category:** PittSpeed Automotive\ **Created:** [April 15, 2010, 3:52pm UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868 "2010-04-15T15:52:01Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![yamaha](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/yamaha/32/5929_2.png) [@yamaha](https://forums.speedlife.net/u/yamaha)\ **Post date:** [April 15, 2010, 3:52pm UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/1 "2010-04-15T15:52:01Z")
Currently looking at a car with a 70mm turbo on what appears to be a stock bottom end 5.3l. What are the things to look for on these motors in general? Modifications from what I have found are: 2000 CAMARO Z28 CAMSHAFT COMP CAMS 918 VALVE SPRINGS LS1 INTAKE MANIFOLD LS1 FUEL RAIL 55lbs SIEMENS FUEL INJECTORS LS1 WATERPUMP LS1 OIL PAN LS1 PICKUP TUBE LS1 MOTOR MOUNTS LS1 ALTERNATOR LS6 MAF LS6 CLUTCH Thanks. ---
**Author:** ![bgblockelcamino](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bgblockelcamino/32/5997_2.png) [@bgblockelcamino](https://forums.speedlife.net/u/bgblockelcamino)\ **Post date:** [April 15, 2010, 4:02pm UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/2 "2010-04-15T16:02:44Z")
clutch is weak link. say ditch the maf but not a big deal. turbo doesn’t rev high so rod bolts are not really needed. it is a grenade either way but shouldbe a lot of fun. ---
**Author:** ![Quik](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/quik/32/5979_2.png) [@Quik](https://forums.speedlife.net/u/Quik)\ **Post date:** [April 15, 2010, 4:07pm UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/3 "2010-04-15T16:07:27Z")
Walk away from That setup ---
**Author:** ![spoolinsteve](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/spoolinsteve/32/6026_2.png) [@spoolinsteve](https://forums.speedlife.net/u/spoolinsteve)\ **Post date:** [April 15, 2010, 5:34pm UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/4 "2010-04-15T17:34:39Z")
funny i thought you would approve maybe the turbo has to be 2000mm in order for that to happen ---
**Author:** ![green](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/green/32/5996_2.png) [@green](https://forums.speedlife.net/u/green)\ **Post date:** [April 15, 2010, 7:53pm UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/5 "2010-04-15T19:53:32Z")
I say go for it you’ll be rebuilding it one way or another. ---
**Author:** ![Orr89rocz](https://avatars.discourse-cdn.com/v4/letter/o/ac91a4/32.png) [@Orr89rocz](https://forums.speedlife.net/u/Orr89rocz)\ **Post date:** [April 15, 2010, 8:00pm UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/6 "2010-04-15T20:00:05Z")
whats wrong with that setup? Cant really tell shit from those mods ---
**Author:** ![gillbot](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gillbot/32/6029_2.png) [@gillbot](https://forums.speedlife.net/u/gillbot)\ **Post date:** [April 16, 2010, 6:00am UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/7 "2010-04-16T06:00:19Z")
Many people use the 5.3 because the block is iron and they can be found MUCH CHEAPER than the popular 6.0L. IMHO, if it was tuned well and not abused, there isn’t any real need for concern. Though, since it no longer has the original LS1 in it, I’d suspect it was abused and this motor was tossed in to make the car movable again. ---
**Author:** ![SoLow](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/solow/32/6001_2.png) [@SoLow](https://forums.speedlife.net/u/SoLow)\ **Post date:** [April 16, 2010, 7:10am UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/8 "2010-04-16T07:10:44Z")
> [@X-box live gamertag thread\*\*edited with list\*\*](https://forums.speedlife.net/t/x-box-live-gamertag-thread-edited-with-list/22265/1212): > > Many people use the 5.3 because the block is iron and they can be found MUCH CHEAPER than the popular 6.0L. IMHO, if it was tuned well and not abused, there isn’t any real need for concern. Though, since it no longer has the original LS1 in it, I’d suspect it was abused and this motor was tossed in to make the car movable again. how do u know its not the original motor ? he never stated what the car was ---
**Author:** ![SK360](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sk360/32/5933_2.png) [@SK360](https://forums.speedlife.net/u/SK360)\ **Post date:** [April 16, 2010, 7:25am UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/9 "2010-04-16T07:25:17Z")
Depending on what production run those Comp 918’s are I would be afraid of them… Lots of breakage unless they are from the time period that PAC was making them. ---
**Author:** ![Quik](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/quik/32/5979_2.png) [@Quik](https://forums.speedlife.net/u/Quik)\ **Post date:** [April 16, 2010, 8:08am UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/10 "2010-04-16T08:08:25Z")
> [@X-box live gamertag thread\*\*edited with list\*\*](https://forums.speedlife.net/t/x-box-live-gamertag-thread-edited-with-list/22265/1212): > > Many people use the 5.3 because the block is iron and they can be found MUCH CHEAPER than the popular 6.0L. IMHO, if it was tuned well and not abused, there isn’t any real need for concern. Though, since it no longer has the original LS1 in it, I’d suspect it was abused and this motor was tossed in to make the car movable again. its in a older RX7 belive the car is from Tech and think its on ebay/craigslist ---
**Author:** ![gillbot](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gillbot/32/6029_2.png) [@gillbot](https://forums.speedlife.net/u/gillbot)\ **Post date:** [April 16, 2010, 9:29am UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/11 "2010-04-16T09:29:45Z")
> [@Dodge Neon NYG ACR Coupe Revival](https://forums.speedlife.net/t/dodge-neon-nyg-acr-coupe-revival/41213/39): > > how do u know its not the original motor ? he never stated what the car was 5.3 is a TRUCK motor for one… The 5.7L was the V8 used in early cars with the 6.0L in the later cars such as the GTO and etc. ---
**Author:** ![SoLow](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/solow/32/6001_2.png) [@SoLow](https://forums.speedlife.net/u/SoLow)\ **Post date:** [April 16, 2010, 11:10am UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/12 "2010-04-16T11:10:23Z")
> [@Zero punctuation review of guitar hero III](https://forums.speedlife.net/t/zero-punctuation-review-of-guitar-hero-iii/42178/2): > > 5.3 is a TRUCK motor for one… The 5.7L was the V8 used in early cars with the 6.0L in the later cars such as the GTO and etc. REALLLYYYYY WOW…thanks i’m so glad you explained that to me…but considering when sean posted he DID NOT say what the motor was in, u can not say its NOT that original motor or that it originally had a LS1 in it b4 the 5.3 is all i am saying… ---
**Author:** ![oneslowbowtie](https://avatars.discourse-cdn.com/v4/letter/o/d78d45/32.png) [@oneslowbowtie](https://forums.speedlife.net/u/oneslowbowtie)\ **Post date:** [April 16, 2010, 11:15am UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/13 "2010-04-16T11:15:04Z")
> [@1999 RX-7 Type R Bound For Sweden](https://forums.speedlife.net/t/1999-rx-7-type-r-bound-for-sweden/42020/14): > > REALLLYYYYY WOW…thanks i’m so glad you explained that to me…but considering when sean posted he DID NOT say what the motor was in, u can not say its NOT that original motor or that it originally had a LS1 in it b4 the 5.3 is all i am saying… When you see that it is a 5.3 with a LS1 accessory drive and F-body oil pan you know it is not a original motor for a F-body ---
**Author:** ![Darkstar](https://avatars.discourse-cdn.com/v4/letter/d/b487fb/32.png) [@Darkstar](https://forums.speedlife.net/u/Darkstar)\ **Post date:** [April 16, 2010, 12:01pm UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/14 "2010-04-16T12:01:25Z")
SoLow originally had my balls in his mouth. ---
**Author:** ![Orr89rocz](https://avatars.discourse-cdn.com/v4/letter/o/ac91a4/32.png) [@Orr89rocz](https://forums.speedlife.net/u/Orr89rocz)\ **Post date:** [April 16, 2010, 12:43pm UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/15 "2010-04-16T12:43:33Z")
comp 918’s suck regardless. Not enough spring for most cams and not enough spring for a turbo car ---
**Author:** ![SoLow](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/solow/32/6001_2.png) [@SoLow](https://forums.speedlife.net/u/SoLow)\ **Post date:** [April 16, 2010, 6:54pm UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/16 "2010-04-16T18:54:40Z")
> [@1999 RX-7 Type R Bound For Sweden](https://forums.speedlife.net/t/1999-rx-7-type-r-bound-for-sweden/42020/16): > > When you see that it is a 5.3 with a LS1 accessory drive and F-body oil pan you know it is not a original motor for a F-body reallly wow…all theses years i’ve been at JJ’s i never new a f-body came with a LS1… BUT WHERE DID HE SAY IT IS A F-BODY VEHICLE HE WAS LOOKING ? ? ? ?? ---
**Author:** ![paNX2K\_SE-R](https://avatars.discourse-cdn.com/v4/letter/p/dfb087/32.png) [@paNX2K\_SE-R](https://forums.speedlife.net/u/paNX2K_SE-R)\ **Post date:** [April 16, 2010, 7:13pm UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/17 "2010-04-16T19:13:28Z")
> [@X-box live gamertag thread\*\*edited with list\*\*](https://forums.speedlife.net/t/x-box-live-gamertag-thread-edited-with-list/22265/1212): > > Many people use the 5.3 because the block is iron Unless its an aluminum one… ---
**Author:** ![Quik](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/quik/32/5979_2.png) [@Quik](https://forums.speedlife.net/u/Quik)\ **Post date:** [April 16, 2010, 7:20pm UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/18 "2010-04-16T19:20:15Z")
> [@Zero punctuation review of guitar hero III](https://forums.speedlife.net/t/zero-punctuation-review-of-guitar-hero-iii/42178/2): > > 5.3 is a TRUCK motor for one… The 5.7L was the V8 used in early cars with the 6.0L in the later cars such as the GTO and etc. There is a 5.3 that came in a car known as ls4 ---
**Author:** ![spoolinsteve](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/spoolinsteve/32/6026_2.png) [@spoolinsteve](https://forums.speedlife.net/u/spoolinsteve)\ **Post date:** [April 16, 2010, 8:56pm UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/19 "2010-04-16T20:56:49Z")
gillbot, I think you assumed it is in an f body, which its not, it has an f body cam if you read carefully. solow 1 gillbot 0 ---
**Author:** ![bgblockelcamino](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bgblockelcamino/32/5997_2.png) [@bgblockelcamino](https://forums.speedlife.net/u/bgblockelcamino)\ **Post date:** [April 16, 2010, 10:07pm UTC](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868/20 "2010-04-16T22:07:14Z")
> [@Dodge Neon NYG ACR Coupe Revival](https://forums.speedlife.net/t/dodge-neon-nyg-acr-coupe-revival/41213/41): > > There is a 5.3 that came in a car known as ls4 saab version of trailblazer used aluminum 5.3 [Next page](https://forums.speedlife.net/t/attention-5-3l-ls1-people-input-needed/204868.md?page=2)