New engine block

ryan632 · June 7, 2014

I have a brand new block lm7 vortec 5.3 gen III. My question is do have to hone a brand new block that has never been assembled.

gmtech4 · June 7, 2014

the shop that assembles the engine will do what it takes to build it

ryan632 · June 7, 2014

Still not answering the question. I am building the engine myself. I currently have the crank, rods and pistons at a machine shop to balance them. I just need to know if a brand new engine that has never been assembled needs to be honed or not.

gmtech4 · June 7, 2014

good luck lmao !!!!

Chris · June 7, 2014

The block should be checked out to make sure everything is good

j-ten-ner · June 7, 2014

Yes imo.

For break-in and lubrication purposes.

so long

j-ten-ner

Doug_Scott · June 7, 2014

You seem to be confused. Did you purchase a brand new unassembled engine? Or did you purchase a brand new block, then ordered in pistons, then rods, then a crank, then all the assembly bits and pieces? Those are two completely different animals.

Since you called it a brand new engine, to me that means the entire package is brand new. Or is this a new block only, and the rest is rebuilt? The people to ask regarding the assembly of the engine is the machine shop that would be doing the work to size the block to match the pistons you got. Are these new pistons? Are they standard size? My point in asking all those questions is that asking a question like yours in a public forum is about the worst idea you have had. No one can say if the block needs honing based on the information you provided. Why you are not asking the machine shop that is doing the balancing raises some red flags for me.

What would you do if someone said that no, you don't need to touch the block, just assemble it, and you did? On first start up you find that piston clearance was a bit tight, now the engine block and pistons are one piece. There are some things you just do not trust an anonymous forum for. The scary part is that someone has to tell you that.

ryan632 · June 7, 2014

The scary part is the way your thinking, worst idea. Really I'm asking in a public forum because no one else has. And it's a brand new block only, purchased separate pistons. The crank, pistons, rods and flywheel are currently at the machine shop to get balanced. I'm looking for advice not sarcasm.

Duelin · June 7, 2014

Look at the cylinders and see if they have been honed. If not then hone them. If you don't know what to look for then you shouldn't be the one to hone them. Or have someone who knows how to help you out. Don't create more problems than you need.

txab · June 7, 2014

I'd let the machine shop check it over. Mic the cylinder walls to make sure they are uniform. I've seen some blocks that have been machined with wide ranging oversize dimensions

Doug_Scott · June 7, 2014

The scary part is the way your thinking, worst idea. Really I'm asking in a public forum because no one else has. And it's a brand new block only, purchased separate pistons. The crank, pistons, rods and flywheel are currently at the machine shop to get balanced. I'm looking for advice not sarcasm.

You got the advice in the first reply, but you didn't want advice, you want a yes/no answer to your question.

If you have any knowledge in the area of engine building you would know that you need to machine/finish the block to match new pistons. That alone tells you what you need to do. But, it does not answer your question.

ryan632 · June 7, 2014

It's the way you answered. It's obvious that I have not built a engine before that's why I'm asking the questions before assembly.

gmtech4 · June 8, 2014

It's the way you answered. It's obvious that I have not built a engine before that's why I'm asking the questions before assembly.

you have a any experience at all or any tech training ?

i think you are bonkers to try this after asking here as doug said,,,,,,i tried to tell you that a machine shop is the place to have this entire process done for you but you have some gigantic ego that you think you can do this ,,,,like i said good luck,,,you're gonna need it pal

remember that the rings uhvunevudt usfvybfj jrhvetigbh