What all is involved to rebuild a 5.0 V8 engine?
Thanks,
Will

 

That's a pretty broad question.
If you don't really know and don't have a lot of money to burn, get a long block and consider having it installed by a mechanic.

 

Well, let's say you need to go through everything, but you're doing a stock rebuild. There are a lot of options for performance upgrades, but let's stick with the basics for now.

You'll need to find a good machine shop, because there will be machining to be done. The crank may need to be turned, in which case you can get a crank kit which consists of a turned crank and set of new bearings to match. The block will have to be cleaned and Magnafluxed (a process to check for cracks.) It may need new cam bearings installed, and may need to be bored out which will require new pistons and rings.

The rods should be resized and will need to be installed on the new pistons. The timing set should be replaced, along with the oil pump. Cam and lifters...if it's a roller cam and not really high mileage, they may be okay and you may want to reuse them. For that matter, a flat lifter cam and lifters may still be okay. Your machinist should inspect them and make a determination. I like to upgrade the cam anyway, almost no matter what.

All this, reassembled, becomes what is known as a shortblock. Add the heads and it becomes a longblock.

Ah yes, the heads...
They should be completely disassembled, Magnafluxed and the block mating surfaces checked for flat and true. Usually they will need a bit of surfacing just to clean up that mating surface.

The guides will need to be checked and might need to be replaced. A valve job consists of grinding the valves and seats, and in some cases new seats may need to be installed, and some or all of the valves replaced. Valve springs, rocker arms and pushrods can usually be reused but need to be checked, just in case.

I haven't quite covered everything here, but these are the basics of what you'll be looking at, without getting into the reassembly process. Whole books have been written to cover this, and here's one I can recommend for a first-time rebuilder:

http://www.motorhaven.com/product.ph...&cat=44&page=1

If you go for a performance rebuild, things can get a bit more involved. There are so many options for this motor, and so many things to consider when selecting the parts, and the total package should be carefully chosen so that all parts will work together to give you the optimum results, or you can wind up very dissappointed. Here are a couple of other books with some good info:

http://www.motorhaven.com/product.ph...&cat=44&page=1

http://www.motorhaven.com/product.ph...&cat=44&page=1

Hope there's some info you can use in all this. Good luck, and have fun with it!