# Modifying the Valve Body in a Ford 4R70W Tranny

**URL:** <https://forums.speedlife.net/t/modifying-the-valve-body-in-a-ford-4r70w-tranny/185568>\
**Category:** PittSpeed Automotive\
**Created:** [October 12, 2006, 9:28pm UTC](https://forums.speedlife.net/t/modifying-the-valve-body-in-a-ford-4r70w-tranny/185568 "2006-10-12T21:28:36Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![95V8TBird](https://avatars.discourse-cdn.com/v4/letter/9/a8b319/32.png) [@95V8TBird](https://forums.speedlife.net/u/95V8TBird)\
**Post date:** [October 13, 2006, 1:54pm UTC](https://forums.speedlife.net/t/modifying-the-valve-body-in-a-ford-4r70w-tranny/185568/6 "2006-10-13T13:54:43Z")

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> [@Can I build a 1000+ Horsepower engine? Apparently so.](https://forums.speedlife.net/t/can-i-build-a-1000-horsepower-engine-apparently-so/24902/160):
>
> you want it to shift hard take you accumulator springs out

I heard taking them all out makes it shift pretty severe though, is that the case?? I knw a few people that left out both springs in the 1-2 accumulator, and they thought they were going to break something with as hard as it shifted. I’ve never experienced it myself, so I dont know what they mean by severe.

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