Engine Question

[5B Steve]

  Hello,

  I thought I might ask , would a rebuilt 8V-71T truck engine work in a bus and is there any changes that need to

  be made. The reason that I ask a friend of mine would like to replace the engine in his bus.

  Thanks in advance.

  Steve 5B......

[TomC]

No real differences between a truck and bus engine except-the bus engine typically had smaller injectors. The truck 8V-71N had 318hp and 860lb/ft torque. The Bus 8V-71 had 270hp and 730lb/ft torque. Same with 8V-71T (non aftercooled). Truck was 350hp and 930lb/ft torque. Bus is 304hp and 800lb/ft torque. Depending on if you have an automatic or manual is what you should run. Better startability with an automatic, hence larger injectors work well with the automatic. Good Luck, TomC

[Sam 4106]

It depends on what brand bus it is going into. A truck engine wouldn't be usable in a bus with a crossways 8V71, they require a left hand engine. In some buses an 8V71T truck engine would require a lot of modification to work. No easy answer until you tell us what bus the engine is going into.

Good luck, Sam

[RickB]

If it's an MCI Bus you will need a different bellhousing or you'll have to switch to a belt driven alternator in the front. Obviously, if you're pulling  it from a truck with a manual transmission and putting it in a bus with an automatic you'll need a flex plate and quite possibly a different bellhousing as well

RB

[bevans6]

Read my project page on military engines to see what some of the issues might be, if it's an MCI bus.

Brian