# Cheapest way to 400 whp

**URL:** <https://forums.speedlife.net/t/cheapest-way-to-400-whp/124901>\
**Category:** SON240sx Automotive\
**Created:** [May 29, 2009, 9:24am UTC](https://forums.speedlife.net/t/cheapest-way-to-400-whp/124901 "2009-05-29T09:24:09Z")\
**Posts on this page:** 1\
**Showing post:** 41

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**Author:** ![BRIGGS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/briggs/32/5662_2.png) [@BRIGGS](https://forums.speedlife.net/u/BRIGGS)\
**Post date:** [May 29, 2009, 11:07pm UTC](https://forums.speedlife.net/t/cheapest-way-to-400-whp/124901/41 "2009-05-29T23:07:19Z")

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> [@BLUE DEVIL: A corvette supercar?!?!?](https://forums.speedlife.net/t/blue-devil-a-corvette-supercar/19641/47):
>
> When I say cheapest, I mean by making it reliable as well. Rb25det or sr20det? I’ve been collecting a lot of data, and it seem as if the rb25 internals are better able to handle the higher hp than that of the sr20.
> 
> Thanks

the fact that it has 2 more cylinders helps just a little too… rbs also have cast iron blocks the can typically handle more power than an aluminum block

why the 400 whp goal though? is it just a # you like? sure, my drift car makes 450 but I only run it at 340-350ish whp because that is more than enough for me to smoke my giant 275s in 4th gear.

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