How do fix a leak on engine block?

MA 1958283H.D. m/t1602trucks MA 1963283Powerglide1752trucks MA 1967327manual trans.2102Camaro MBit was made in Engine assembly plant: V= Flint, Michigan.
Engine was assembled in March, day 28.
We are sorry but we did not find engine assembly code "CMA" in our database. Please double check it and try again. the c designates car --- ma is engine /hp and trans
NastyZ28 com Chevrolet Decoding Guide the link helps break down the prefix code because would need more info as to exactly what engine yr and hp are MA 1958283H.D. m/t1602trucks---- MA 1963283Powerglide1752trucks---- MA 1967327manual trans.2102Camaro and this is big block MBMA 1969Chevrolet427335Mt
NastyZ28 com Chevrolet Decoding Guide

On the block ( the bottom part of the motor ) below the intake manifold

a good trick is to dry area where coolant leak.
take a spray can of foot powder ,, spray it where it seems to leak
start engine to normal temp. look for a trace of leak you will see the crack if there is one.
hope it helps

Basically, you don't "fix" cracked blocks....you replace them.

Now, having said that, is this cracked block causing a loss of coolant?

If this is the problem, there are some block sealers on the market that do a commendable job. Thing is, if it works....great! If it doesn't...well, you didn't spend an arm and a leg for the sealer.

A product I've used with some success is Head Gasket Repair and Block Seal by Bar's Leaks. It'll run around $13.00 for a 20 oz. bottle. Check www.barsleaks.com for all their products.

Good luck!

Cracked block? Eh... You can try to have it welded but thats not a promising fix. I think you may have signed your jeeps death certificate. On the bright side you can pick up a used motor from a salvage for around $450. Try welding it. Its worked for me before.

The freeze plugs are normally located on the side of the engine block.Make sure first thats what the problem is.This link will help you with your problem.Please rate my assistance towards your problem thanks.
http://www.autozone.com/autozone/repairinfo/common/repairInfoMain.jsp?targetPage=productsHowToInspect&leftNavPage=productsHowTo&pageId=%090900c152802140b9&subtitle=replace

Either its cracked or gasket needs replaced.

This is A MAJOR FAILURE and Requires Removal of the Head and A Machine Shop MAY be able to Repair it

you have a blown head gasket and or cracked cylinder heads or engine block, but most common is the head gaskets leaking.

If you have a bad or leaky freeze plug, also known as soft plugs, it needs to be replaced. Your brass plugs are the best, and in some hard to get to places there are rubber plugs that can be adjusted to fix the problem. But if you have oil in the oil pan, assuming no one put water in the engine. You probably overheated the engine enough to acquire a cracked head gasket. Normaly that's the problem, could be a cracked head also, but more than likely a gasket. If you decide to remove the heads and replace the gaskets, good idea to have the heads resurfaced. (recommended)