Hey Guys!

Pulled the engine out of my 1984 Ford F-150 with a 302 due to some loud knock coming from the lower engine

Stripped the engine down today and found some worn out main bearings and in my opinion a messed up looking cam

I could use some help on the next few steps and what to ask the machine shop for and how to get this all back together to run great on a budget

Id like to make more power then it did before. It was 100% stock. I have a new 4 barrel cab and intake and some headers

But most importantly what do i ask the machine shop for and how much should it cost me

I know I need the block cleaned and inspected/ manufluxed the cylinder walls look good
Heads need a valve job and inpsected

Should I have them rebuild the whole block for me? How much would that cost ish

should i have them just hone it clean it and install cam bearings?

To many options could use direction! thanks

 

On the price we cant say for a number of reasons.
Shops in different parts of the USA charge different rates.
Also not knowing what the motor needs, just a hone or bored and bigger pistons, crank turned under size for mains and/or rods, rods need resizing and that is not counting head work needing valves or guides etc.
So you can see why no price given.

As for who will screw it back together? Have you ever screwed together a motor before? Do you have the tools needed to do that job?
Who will pay if there is something wrong on start up and takes out the bearings & crank?
99.9% of the time if the shop does not screw it together you pay if something goes wrong on start up.
Do you have the money to build a second motor if it goes wrong?
my .02
Dave ----

 

Take it apart and bring it to them. But first, find a good shop. In most areas you will have a hard time even finding one shop still open, maybe you are in a big city that has some shops. Find one you are comfortable with and talk to them about it.

Once you find a shop you like you will want to take the block, the crank and the rods/pistons to them. Make sure you are marking your rods before you take them out. You need to take a center punch and mark the top and bottom half of the rod 1, 2, 3, 4, etc. Mark them so you can get them back together exactly like they were.

They will measure the bores of the block and tell you if you need it bored out. If it needs boring, that is going to be expensive, but is the best way to get a new engine. If you have a ridge at the top of the cylinders that catches your fingernail, it's going to need to be bored. So that means new pistons. And the new pistons will need to be installed on the rods. They have to do that, they have a special machine that heats the end of the rod so they can push the pins in place.

During all of this they will hot tank the block to clean it. This will ruin the cam bearings if they were any good (probably not) so they will have to install new cam bearings.

They should give you back a cleaned bored and honed block, 8 new pistons installed on rods that have been checked, and a crank that has been checked and turned undersize if it needed it.

I strongly recommend you buy this book.

 

Once you get a price from the shop on just the machine work and maybe them putting it together you may want to check out buying a long block thru one of the local parts stores or Jasper Engines (don't know if any good or not just know they do long blocks) to see what one goes for. It may be cheaper than the shop one.
Dave ----

 

This is where I would say.... "here you go, call me when its rebuilt"

 

Just looking at the pics, I think the engine will need major machine work as mentioned above. Possibility of getting an EFI roller cam engine from an 86-91 CV or GM?