Hello ht

Long story short i crashed my car and the block was destroyed. My question is this, if i have two b16a2 short blocks in my garage, can i just swap ALL my bottom end internals from one block to another?

 

No.

If you desire an explanation or you want to clarify your meaning, by all means do.

 

Ensure everything is within spec. If you have to ask what that mean I suggest you take it to a builder...

 

The internals themselves (may) possibly be usable, but you are going to want to trash the rings and bearings etc.
This would not be plug and play, as there are certain clearances that must be met.
The new block would need to be honed, at least, and new rings must be used and set to proper gap (provided the piston to wall clearances are okay), in order for the rings to properly seat.
Bearing clearances would have to be mic'd and properly sized oem bearings would need to be selected. (your block/crank/rod clearances will be different).
You would also want new bolts/studs/gaskets/seals etc and may want to replace the pumps and timing belt while your in there.

 

Thank you for your response it was very helpful. I see i need a dial bore gauge or a digital one and also machinist micrometers, to check all my clearances. Can you recommend any of these tools for a lower budget build. Thanks for the information i appreciate your help.

 

Find a local engine builder to put the block together, just what I'd recommend.

 

If you had to ask, you should just let a reputable shop/person do ALL the work.

 

There is no cheap tools for this. The dial bore gauge will run you a couple of hundred dollars minimum to be sure it's accurate enough for the work. Anything cheaper and you will likely be getting sketchy results that you can't trust.

The micrometers are the less expensive tools but a decent set is still around hundred an a half or so.

Fowler is a decent starter set that won't clear the bank but the tools alone will cost as much if not more than the charge of having a machine shop assemble the motor.

 

 

If the engine is all stock you should be able to buy bearings from your local dealer that match the color codes on your rods/crank.
You can use those to replace all your bearings for new without much worry of issue.
Get some new rings though and if there is a local engine shop I would have them hone the block in your garage.

Otherwise you should be fine. I've personally changed out all the bearings in a prior civic with the right color codes after having 2 different bearings break and I never had any issues after that for 20k+ miles.