401 Rebuild Help

[fuzz401]

i would also recomend getting the motor balanced to

for extra reves you could go with free floating pistons too

[Lifted79CJ7]

Whats the difference with a free floating vs a non free floating piston?

[fuzz401]

free floating wrist pin floats in the rod
std it is pressed in the rod

[jeepsr4ever]

htey last a super long time and they have clips on the ends of the wrist pins

[Lifted79CJ7]

So will they fit on any piston, or do I need to order my pistons to accept these? Also sounds like it is easier to do at home since I don't have access to press right now. True? So how do they "float" without causing more wear? Sounds like they would wear out faster, and how do they do at higher revs vs pressed in wrist pins? Wrist pins are one of the few things that I have never messed with before.
Jack

[fuzz401]

and forgot this that 650 might be a little light might end up going to a 750


did I cover every thing MC lol

[fuzz401]

they reduce friction due to the pin moves in the rod and piston instead of just the piston
the rods would have to be bushed for the pin the slide in they are also 1" wrist pins in a 390 and 401

probley have to order them that way most replacment pistons are for push in pins

[jeepsr4ever]

Fuzz you do an exellent job around here and bulltear will need you more and more when this board starts to explode, thanks fuzz!

MC

[Lifted79CJ7]

So here's another Q for you guys, where online can I find a cam bearing replacement tool for an AMC, and do you have any tips for me when installing them?

Also, any tips on installing freeze plugs? I installed my last ones with a socket and a hammer and had leaks :cry: , even though I did put some RTV on them before hand.

And last but not least, do you have any suggestions for valves or springs for my heads? I am gonna be replacing them as well.

Thanks!
Jack

[fuzz401]

1 cam bearing tool snap-on http://buy1.snapon.com/catalog/pro_d...re&dir=catalog what i have take your time doing it and mark your block were the oil hole comes through at to line the oil hole up in the bearing at and do not mix the bearings up they are diff sizes

2 thats what I use a hammer and socket but I use the dark brown sealer that comes in a tube and it is thick smear it around the plug and drive it in then wipe the excess off

3 use the springs that the cam maker say's to use and get new retainers and no rotators the springs will have to be installed to the right hight spec. = seats may have to be cut or shimed