# Z28 or Trans Am **URL:** \ **Category:** PittSpeed Automotive\ **Created:** [March 10, 2005, 1:14pm UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867 "2005-03-10T13:14:32Z")\ **Posts on this page:** 20\ **Page:** 3
**Author:** ![Turbo\_Silverado](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/turbo_silverado/32/5990_2.png) [@Turbo\_Silverado](https://forums.speedlife.net/u/Turbo_Silverado)\ **Post date:** [March 21, 2005, 5:32am UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/41 "2005-03-21T05:32:45Z")
i know 97 vette ls1s are junk also…blocks are crap in those cars!!! ---
**Author:** ![smokeyburnouts](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/smokeyburnouts/32/5987_2.png) [@smokeyburnouts](https://forums.speedlife.net/u/smokeyburnouts)\ **Post date:** [March 21, 2005, 5:40am UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/42 "2005-03-21T05:40:21Z")
since when??? i never hear ppl on the vette forum say anything bad about the engine reliablity on those. i just hear about that stupid column lock and the seats wearin out quick. ---
**Author:** ![Pewter](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pewter/32/5936_2.png) [@Pewter](https://forums.speedlife.net/u/Pewter)\ **Post date:** [March 21, 2005, 5:49am UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/43 "2005-03-21T05:49:21Z")
> [@95greenZ](#): > > i know 97 vette ls1s are junk also…blocks are crap in those cars!!! hun??? ---
**Author:** ![Gray05](https://avatars.discourse-cdn.com/v4/letter/g/cc9497/32.png) [@Gray05](https://forums.speedlife.net/u/Gray05)\ **Post date:** [March 21, 2005, 6:34am UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/44 "2005-03-21T06:34:03Z")
> [@PewterSS](#): > > not really,but its the bastard year!!99^ in my book! it’s more rare to see a 98 dyno over 300. ---
**Author:** ![Turbo\_Silverado](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/turbo_silverado/32/5990_2.png) [@Turbo\_Silverado](https://forums.speedlife.net/u/Turbo_Silverado)\ **Post date:** [March 21, 2005, 6:59am UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/45 "2005-03-21T06:59:32Z")
> [@PewterSS](#): > > hun??? i read that the 97 ls1’s in the c5s are weaker blocks…not made the same as 98 and ups!!! and in that article they said that the 99 and up is the best for f-bodys!!! ---
**Author:** ![smokeyburnouts](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/smokeyburnouts/32/5987_2.png) [@smokeyburnouts](https://forums.speedlife.net/u/smokeyburnouts)\ **Post date:** [March 21, 2005, 7:28am UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/46 "2005-03-21T07:28:26Z")
> [@95greenZ](#): > > i read that the 97 ls1’s in the c5s are weaker blocks…not made the same as 98 and ups!!! and in that article they said that the 99 and up is the best for f-bodys!!! hmm. ive never heard that. hopefully not, cause i might end up w/ a 97 C5. but then again, i never heard anything bad about the 98 TAs either. ---
**Author:** ![BlackZ28](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/blackz28/32/5932_2.png) [@BlackZ28](https://forums.speedlife.net/u/BlackZ28)\ **Post date:** [March 21, 2005, 7:39am UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/47 "2005-03-21T07:39:23Z")
> [@BlkP42E](#): > > Ss \> Ws6 x500 ---
**Author:** ![Turbo\_Silverado](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/turbo_silverado/32/5990_2.png) [@Turbo\_Silverado](https://forums.speedlife.net/u/Turbo_Silverado)\ **Post date:** [March 21, 2005, 7:42am UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/48 "2005-03-21T07:42:38Z")
> [@smokeyburnouts](#): > > hmm. ive never heard that. hopefully not, cause i might end up w/ a 97 C5. but then again, i never heard anything bad about the 98 TAs either. idk…i said something with the material made in the casting of the block…just wasnt as strong as the other ls1s ---
**Author:** ![BlkP42E](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/blkp42e/32/5938_2.png) [@BlkP42E](https://forums.speedlife.net/u/BlkP42E)\ **Post date:** [March 21, 2005, 7:47am UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/49 "2005-03-21T07:47:16Z")
> [@BlackZ28](#): > > x500 Just 500??? :embarassd ---
**Author:** ![smokeyburnouts](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/smokeyburnouts/32/5987_2.png) [@smokeyburnouts](https://forums.speedlife.net/u/smokeyburnouts)\ **Post date:** [March 21, 2005, 7:59am UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/50 "2005-03-21T07:59:06Z")
> [@95greenZ](#): > > idk…i said something with the material made in the casting of the block…just wasnt as strong as the other ls1s if so, that sux for me :down: ---
**Author:** ![Pewter](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pewter/32/5936_2.png) [@Pewter](https://forums.speedlife.net/u/Pewter)\ **Post date:** [March 21, 2005, 8:30am UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/51 "2005-03-21T08:30:07Z")
> [@Blue4](#): > > it’s more rare to see a 98 dyno over 300. toplessta did,eusty did!but there JJ built!😃 ---
**Author:** ![Pewter](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pewter/32/5936_2.png) [@Pewter](https://forums.speedlife.net/u/Pewter)\ **Post date:** [March 21, 2005, 8:31am UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/52 "2005-03-21T08:31:37Z")
> [@95greenZ](#): > > idk…i said something with the material made in the casting of the block…just wasnt as strong as the other ls1s part# are the same! ---
**Author:** ![smokeyburnouts](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/smokeyburnouts/32/5987_2.png) [@smokeyburnouts](https://forums.speedlife.net/u/smokeyburnouts)\ **Post date:** [March 21, 2005, 8:39am UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/53 "2005-03-21T08:39:35Z")
> [@PewterSS](#): > > part# are the same! :sign of relief: ---
**Author:** ![Turbo\_Silverado](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/turbo_silverado/32/5990_2.png) [@Turbo\_Silverado](https://forums.speedlife.net/u/Turbo_Silverado)\ **Post date:** [March 21, 2005, 9:01am UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/54 "2005-03-21T09:01:47Z")
> [@PewterSS](#): > > part# are the same! yes…but im saying different material was used in the 97…same block and casting(which gives u same part number) but different material was used in the block ---
**Author:** ![Pewter](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pewter/32/5936_2.png) [@Pewter](https://forums.speedlife.net/u/Pewter)\ **Post date:** [March 21, 2005, 9:18am UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/55 "2005-03-21T09:18:16Z")
> [@95greenZ](#): > > yes…but im saying different material was used in the 97…same block and casting(which gives u same part number) but different material was used in the block them the # would change! ---
**Author:** ![Jeff95TA](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jeff95ta/32/5935_2.png) [@Jeff95TA](https://forums.speedlife.net/u/Jeff95TA)\ **Post date:** [March 21, 2005, 9:43am UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/56 "2005-03-21T09:43:24Z")
Different material on purpose? If it wasn’t on purpose then the number wouldn’t change. :dunno: ---
**Author:** ![Pewter](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pewter/32/5936_2.png) [@Pewter](https://forums.speedlife.net/u/Pewter)\ **Post date:** [March 21, 2005, 10:00am UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/57 "2005-03-21T10:00:33Z")
mr.engineer!:rolleyes: ---
**Author:** ![Jeff95TA](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jeff95ta/32/5935_2.png) [@Jeff95TA](https://forums.speedlife.net/u/Jeff95TA)\ **Post date:** [March 21, 2005, 12:35pm UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/58 "2005-03-21T12:35:42Z")
I don’t know how it works specifically with engine blocks, but you can order the exact same material and if you get material certs for different orders they can have different strengths. They all have to meet the minimum specs though. ---
**Author:** ![Pewter](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pewter/32/5936_2.png) [@Pewter](https://forums.speedlife.net/u/Pewter)\ **Post date:** [March 21, 2005, 1:01pm UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/59 "2005-03-21T13:01:37Z")
> [@Jeff95TA](#): > > I don’t know how it works specifically with engine blocks, but you can order the exact same material and if you get material certs for different orders they can have different strengths. They all have to meet the minimum specs though. 🌑 ---
**Author:** ![smokeyburnouts](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/smokeyburnouts/32/5987_2.png) [@smokeyburnouts](https://forums.speedlife.net/u/smokeyburnouts)\ **Post date:** [March 21, 2005, 1:04pm UTC](https://forums.speedlife.net/t/z28-or-trans-am/172867/60 "2005-03-21T13:04:04Z")
can someone post up some proof of the differences between a 97-98 C5 LS1 and 98-99 F-bod LS1? cause its starting to bother me for some reason and i cant find any difference. i’d just like to know for sure. [Previous page](https://forums.speedlife.net/t/z28-or-trans-am/172867.md?page=2) [Next page](https://forums.speedlife.net/t/z28-or-trans-am/172867.md?page=4)