the truck has a 350 four bolt main with performance heads and performance intake,headers and a holly four barrel.this was bought as my son`s truck and it`s been painted traffic ticket red,new wood in the bed and the inside redone.O.k. to my problem, when i went on vaction i can home and the truck wouldnt start,barely would roll over.i checked the battery,plugs,coil,rotor,cap but still it wouldnt roll over fast...checked the oil and found gas was in there.(i think while i was on vaction my loving son made some adjustments on the carberator),,,,so i pulled the starter and had it checked ,its good.then i pulled all the spark plugs,drained my gasey oil,put fresh oil and tried to get her to roll over without plugs ......she makes it about a half a turn and binds up.then i put a socket with a pry bar on the crank and could roll it about3/4 the way before it binds up again.........................BLOWN MAIN BEARING HUH.....do ya`ll think that this is the cause??? ,i havent broken into the motor yet because i`ve been working nights...i would love to save my heads or is it even worth looking at them any way..my first post is about a blown motor question,sorry......please help i`ve already priced a replacement 350 with 300hp(block,heads) for about 1400.00.. thanks for all ya`ll help: