# LS/VTEC, WHICH BLOCK???

**URL:** <https://forums.speedlife.net/t/ls-vtec-which-block/193870>\
**Category:** PittSpeed Automotive\
**Created:** [November 27, 2007, 4:40pm UTC](https://forums.speedlife.net/t/ls-vtec-which-block/193870 "2007-11-27T16:40:04Z")\
**Posts on this page:** 1\
**Showing post:** 18

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**Author:** ![fmfkid250](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fmfkid250/32/5973_2.png) [@fmfkid250](https://forums.speedlife.net/u/fmfkid250)\
**Post date:** [November 29, 2007, 6:44am UTC](https://forums.speedlife.net/t/ls-vtec-which-block/193870/18 "2007-11-29T06:44:03Z")

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> [@Avoid Northwest Airlines like t3h HIV](https://forums.speedlife.net/t/avoid-northwest-airlines-like-t3h-hiv/33620/19):
>
> Id its just a mild build why not some stock LS Pistons. Those shouldn’t net anything higher the a 10:1 compression. Maybe some RS machines replicas? can be had for $150 with some new hastings rings.

Will not fly with the rods, and he is shooting for upper 400hp+

Off the shelf JE’s are good and CP’s are good.  
I run CP. but JE’s are just as good.  
If you are running a GSR head I went with 9:1 with a GSR head and an ls crank it was around 9.4

I would keep it from 9-10:1

I would only get a Reinforced weisco i heard some things about off the shelf pistons. (wristpin terror)

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