454 swap questions

[getbent]

been lurking round here off and on and have a question maybe someone can answer> i have a 1996 ecsb silverado and its currently outfitted with a 4.3 w/ a 4l60e I am in the process of finishing up the motor and will be running a th400 does anyone here know of this swap and any input on my front driveshaft {its the 2 piece } how much to have removed and approximate cost for such a thing, Im prolly gonna try and find one in the junk yard and have it cut so my down time wont be to long,

thanks and ps theres some good stuff on this site!!

[getbent]

any streght issues running 2 piece drive shaft , motor should come in aroung 425hp and 480ish tq

[getbent]

this forum was very helpfull ,,, lol

[streetstar]

----------------------------

[BossHogg69]

Are you using a bolt in yoke TH400 or slip yoke? As for cutting the half shaft, you'll just have to measure, measure, measure. I put a TREMEC TKO500 in a '92 xcab a few years back and had to change the yoke, cut the halfshaft and move the trans crossmember.

I do wonder if you're going using BBC to build a hotrod, why not start with something a little lighter than an xcab truck, and then have to remove all the wiring & fuel injection. What are you doing for a fuel pump/ignition, etc? Are you going to use a floor mounted shifter?

[team39763]

Like BossHogg69 said, you'll have to measure. The shop that's gonna cut and balance your shaft should be able to give you the correct measuring instructions. I read that it's best to go by what YOUR shop tells you since different shops like to measure from different points. Good luck with it bro.

[BossHogg69]

Originally Posted by team39763

I read that it's best to go by what YOUR shop tells you since different shops like to measure from different points. Good luck with it bro.

That's exactly what I did - I called the shop first, told them what I was doing and they told me where/how to measure. They'll probably be able to fit a new yoke to your existing half shaft and shorten all in one shot.