new project,smoking problems guys!

yes guys thanks for all the feedback the head was magnafluxed, pressure tested and checked for cracks it was not cracked, the thing is when i started it i didn't have any coolant in it or even in the rad i also had the fan and shroud off i just wanted to start to see what happend but b/c theres no anti-freeze in it i could only let it run like 30 seconds, i think im gonna fill it with anti-freeze put the tail pipe out the door of the garage and let it run for awhile and see if it clears up, i was thinking maybe it was just coolant,oil in the cyl's from takin the head off. im not givin up yet i got $450 in the head and 90 in the headgaskets and all the gaskets/seals

most the time when you pull the head to swap it you will get some coolant in the cyl's It might take a few mins to burn all that out fill it up and drive it for a bit see what it does then

Mazda blocks have a high nickel content, which makes them VERY strong and makes the cylinder walls very tough. When you have one that is smokin bad like you describe- it's not in the head, usually. It is the bottom end- the rings. Because the block is so hard, the rings are the weak point in the motor. Like someone above was saying too- you could have perfect compression and a stuck oil ring- and it will smoke all day long. Usually the smoke goes away after the rings expand. A valve stem seal will usually only smoke a puff when the truck is first started, from oil seeping past the stem seals after sitting for awhile.

It is motor showing signs of oil blow by? Are the crankcase filters plugged with oil? Is oil seeping past the valve cover gasket?

To correct rings, yes you are taking taking apart the bottom end. But this really isn't so bad. Most of the time, when you pull one of these motors apart- the cylinder walls will still have visable factory honing marks on them- which is great. Usually all that needs to be done is just have a light hone put on the cylinder walls- and check everything thing and clean everything- them slap on some new rings and bearings- put it back together- good to go! If the truck isn't knocking or anything- then it should not require any machining to rods or crank. Just put on some new standard size bearing while you are there to freshen it up.