drivetrain teardown

[freeflow]

ok so i got the 454 all torn down ready to be sent off 2 the machine shop.
Now im tearing apart the tranny for a rebuild and i guess the tranny has been rebuilt before lol
there was a finish nail holding the shift lever on lol.

So what kits do u all recomend for rebuilding the tranny? its a 400

im looking at a b&m RV/heavy duty transpak for better shifting, and a tci rebuild kit

Should i add more clutches for harder shifts?

thanks
brad

 

[dyeager535]

The "finish nail" was actually the stock piece GM used, go figure.

I've never been a big fan of B&M's trans stuff, the way they are put together is horrid from my experience, although I know some have had great luck with their stuff.

Trans-go is what was always recommended to me by builders, even if their instructions are a bit "odd".

 

[boz42]

I've never been a big fan of B&M's trans stuff, the way they are put together is horrid from my experience, although I know some have had great luck with their stuff.

i second that opinion of B&M. i buy from BTE performance or TCI both are local to me, so i just drive down to the factory & pick it up.

how much u need to beef up your 400 depends on how many ponys u plan on putting in front of it. me i like a lot , so i put a 4l60e 3rd gear drum & a new 36 element intermeadeate sprag & drum assembly in it.

also full manuel reverse valve body(cause i like 1st & reverse to be near each other) not nessicarly makes it stronger but does improve shifts also.

 

[freeflow]

ok so i should go with a tci rebuild kit
and i think im gonna add more clutches for better/stronger shifts, i plan on building the 454 up 2 about 400 hp. would the stock gears hold up to that? if not where do i get the better gears and stuff?

brad

 

[rustyear]

ive had a couple of trannys rebuilt and ive gone with tci with no problems and the local shop, which has been around for longer than i have, has used them for years also...but one of the keys to making your tranny live and be trouble-free is the torque converter...make sure you get a good one, this is not a part you want to cheap out on

 

[roadnotca]

A TH400 won't even notice 400 HP. Yes TCI with the Trans-Scat kit.