IM TOTALY BAFFLED(NEED HELP)

my truck done the same thing chased the problem forever finally after clogging up another brand new radiator i flushed the dlock by its self replaced radiator, heater core, thermostat, and all hoses and now the truck runs nice and cool but have good heat and no puking just some advice but double chech everything you have already replaced to make sure the clog isn't moving

Well upon further inspection today I started my truck and let my air tank fill up so I could move it back up to the slab
I popped the hood and found a crack in the intake manifold next to the water jacket it was leaking really bad so I went
Down to the wrecking yard got another one I'm hopeing that was my problem I would have finished it but I had to
Get home to watch satans spawn so his mother could go to work I will keep u updated thank u all for ur help and suggestions so far

talk about learning the hard way
after a few sleepless night after everything has been (well almost everything) has been elmininated
we found out there is a crack in the block and it is leaking water into the piston sleeve.
we though we found the problem and replace the intake cuz there was a small crack in the flange next to the water jacket and so anyways i go over to the shop and finish putting on the webber and start her up and it blows the top of my res bottle off and waters blowing everywhere. so we try it with out the rad cap and it looks like old faithful when i start it, so we fill her back up and put the rad cap back on and pull the t-stat out and it does the same freaking thing.then we bypass the heater core same ol same ol same ol situation (thought toddluck would like that since he is a crue fan) so we put it all back together minus T-stat and it keeps doing it so i pull the dipstick and i got f%ucking water in my oil aint that about a bitch?? so guess what? i got to dam much money dumped into the pig to give up SO ANYBODY GOT A LOW MILE MOTOR IN WASHINGTON FOR CHEAP (i dont care about a carb,header,intake water pump timing belt,tensioners,fan clutch or a god dam radiator cuz all my $hit is brand freaking new i just need a head and a block that is in good condition