400 turbo anti shift

Bryank · June 29, 2012, 02:35:16 AM

what is it actually called and wheres the best spot to get one. isn't it like a spring or something you change behind the 4 bolts towards the rear of tranny. i am sick of the old chevy shifting itself before 5 grand it needs to stay in first gear till i say so!

nspring15 · June 29, 2012, 04:41:12 AM

manual valve body... pretty sure

marshall · June 29, 2012, 04:43:02 AM

No, the cheap way is to just pull the spring out

betterbeaters · June 29, 2012, 11:31:37 AM

I would buy a manual valve body may cost more but its the best way.. you can change gov. springs I have a 400 that shifts at 6800 now and works ok but I would do a manual valve body next time. well thats what I did in my 350 lol

Bryank · June 29, 2012, 08:27:12 PM

Quote from: marshall on June 29, 2012, 04:43:02 AM
No, the cheap way is to just pull the spring out

just take it out? ......... im gonna be putting 7000 rpm chip in my msd. will it hurt the tranny besides the obvious lol. i do have a spare 400 ready to go and a 350 turbo after that so heck i dont care anyway i guess.

Bryank · June 29, 2012, 08:28:09 PM

Quote from: betterbeaters on June 29, 2012, 11:31:37 AM
I would buy a manual valve body may cost more but its the best way.. you can change gov. springs I have a 400 that shifts at 6800 now and works ok but I would do a manual valve body next time. well thats what I did in my 350 lol

where did ya get the springs?

J.C. · June 29, 2012, 11:11:58 PM

Autozone sells adjustable ones IIRC

Jthomas · July 01, 2012, 02:43:56 AM

on my travels through the internet, researching 400s and full manual valve bodys,i read this thing online that you can remove a check valve and drive it into one of the holes in the valve body, and widen a couple holes in the VB plate and gasket. and it gives you full manual shifts from 1st to 2nd.

but makes sure you watch a video or get a diagram, theres alot of holes on them plates, and quite a few check valves.

Bryank · July 01, 2012, 03:27:52 AM

Quote from: Jthomas on July 01, 2012, 02:43:56 AM
on my travels through the internet, researching 400s and full manual valve bodys,i read this thing online that you can remove a check valve and drive it into one of the holes in the valve body, and widen a couple holes in the VB plate and gasket. and it gives you full manual shifts from 1st to 2nd.

but makes sure you watch a video or get a diagram, theres alot of holes on them plates, and quite a few check valves.

Hmmm. thanks ive heard theres a few ways to make it work just want the cheapist easiest way to do it.

Jthomas · July 01, 2012, 03:43:28 AM

here ya go, maybe research some more. but ive read all the stuff from this guys MULTIPLE websites, and this video is very credible. this guy knows what hes doing.

85cHeavyMetalBogger · July 01, 2012, 04:04:26 AM

cool video, really informational.

Hammerlane · July 01, 2012, 02:11:04 PM

I've heard that it can be as simple as opening up a couple holes, 1 or two in the plate
n' put em together.. just need to be sure which holes.

Bryank · July 01, 2012, 02:48:38 PM

Quote from: Jthomas on July 01, 2012, 03:43:28 AM
here ya go, maybe research some more. but ive read all the stuff from this guys MULTIPLE websites, and this video is very credible. this guy knows what hes doing.

Sweet video! thanks thats awesome

Jthomas · July 01, 2012, 04:31:37 PM

No problem man.

Eroq · July 01, 2012, 05:51:22 PM

what exactly do you want? buy a governer spring and weight kit... change them out until it shifts right.. you can also adjust the vacuum modulator

J.C. · July 01, 2012, 08:51:18 PM

vacuum modulator, thats what i was talking bout... forgot what it was called

Bryank · July 02, 2012, 02:13:32 AM

how do ya adjust the vacum modulator? do ya got to buy one or are the stock ones adjustable? hmmm.. if i plugged off the vacum modulator will it stay in first gear?

betterbeaters · July 02, 2012, 01:16:56 PM

buy a gov spring and weight kit if you wont use a manual valve body.. and just to let you know with the spring and weight kit dont just put the lightest stuff in it wont shift or at least mine didnt it took us 4-5 hours to get it right... another reason I went back to 350th...

hrspwrjunkie355 · July 02, 2012, 04:34:39 PM

my dad always pulled the gov out and removed the lightest spring and put it back in mud dragged bogged and trail rode it for years. it slammed pretty hard when you would down shift and the only way it was going to sec or 3rd was by you shifting it

Bryank · July 02, 2012, 08:06:53 PM

Quote from: hrspwrjunkie355 on July 02, 2012, 04:34:39 PM
my dad always pulled the gov out and removed the lightest spring and put it back in mud dragged bogged and trail rode it for years. it slammed pretty hard when you would down shift and the only way it was going to sec or 3rd was by you shifting it

sounds like easiest think ill try it thanks!