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Ok understand this -- industry wide in the cam shaft buzz they know 25% to 35% of all the flat tappet cams installed will and do fail -- reasons are all over the place but you only want to do it once the correct way is expensive and time consuming -- the lifter bores are the number one reason for failier 99% of cam changes no one ball hones them smooth and the stone debris from the hone must be flushed from the motor completly ???? can you do this ) as far as the pistons go if i thought you had someone who knew what they were doing helping you i could lend you the correct bore gague and the two hones ( ball type and cross hatch scuff hone to finish with ) piston change in a 400 the rods are pressed onto the pistons and not lightly -- most times the old pistons brake apart to remove and new ones to install the rod end has to be heated the pin chilled and than quickly installed not a novis thing first timer -- can do that part for you if you ever get their for free i have all the stuff NOTE the pistons in some cases are directionally and left or right side only ( short rod thing 400 motor ) and rods the factory #s on them on the bearing split side with the tonges are facing to the out side of the motor --- see you dont know what i am talking about and yes they can be and will go in backwards and run maybe 1/2 hour than seaze motor -- who is helping you did any one offer that has done any of this -- that is the first thing you need is a guy to help you ??????? --- not buy more parts you cant use -- fine a helper to do the motor and fit up stuff i am jamed in the shop and am not going to make the season opener already, but will fit in some of the things you cant do that will cost you money you dont have, but i cant re do the motor even as a job for 4 or 5 months, in my book mid may is the first opening for anyone including my sons motor -- jz
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