mods to 4l80e needed?

[albertachevy91]

i am planning on a 383 stroker and want to get the 400 hp line, the L31 vortec maximum. i need to rebuild my tranny when i do this an i would like to know what i should do to it if i need to do anything as it is the big 80e tranny. i was thinking shift kit, maybe stall? and run synthetic oil and put in a temp guage. it already has a tranny cooler. what else will i need, i want a very hard shift, one that will chirp/spin the tires on WOT, as well as have good reliability. also what stall would u recommend for a daily driver?

[dietzster]

I'm in Alberta also, up in Grande Prairie. Call King-o-matic in Edmonton, or there may be one closer to you and get the HD-2 4l80-e reprogram kit, it is good for 91 and up tranny's (don't know what year yours is) and it has a shift kit with adjustable shift firmness and parts to fix every known issue with the 4l80-e also triples holding power in 3rd gear and makes it good for up to like 900hp. Also they have rebuild kits there and ask about upgrading to a 5 pinion planetary, they have all you need to make a very strong 4l80. The stall you want to run will depend on how aggressive your cam is so you'll have to look up the specs.

[albertachevy91]

its a 98 truck. i think the lt4 cam or hot cam is what ive been told to run in a 383. do u kno what they charge for a rebuild and beef-up lol?

[albertachevy91]

sorry double post