400ex rod

[hart]

hey this might be a stupid questin but is it normal for the rod to have slight play back n forth i mean east n west, i just tore mine down 4 a rebuild n it has some it doesnt have any up or down, should i be worried , and if i go with a je 11.1 comp piston should i put a stronger rod in it? if not 11.1 would 10.1 still give me ok power , i used to have a 426 but it blew up so i bought a used motor n just want to go to 416 this time, any info would help.

[mojoe2878]

no worries.... its supposed to have some side to side play in it, as long as you dont have any up and down play you are in good shape.

[mojoe2878]

you should be ok with the stock rod, unless you have the money to spend on a stronger after market one, if you go any higher than 11:1 then you will need to put a stonger rod in there for sure.

[hart]

Hey thanks for the info it takes a load off my sholders :)

[mikeboone]

It must have few thousanths clearance to be able to pivot on the crank.

[F-16Guy]

That side clearance has to be there so that when things heat up and expand, you don't have any binding. If you have a service manual, you can look up the clearance and measure it with a feeler gauge. It's probably fine if you had no problems before you tore it down. It probably wouldn't be worth the time or money to put a stronger rod in unless you're running upwards of 12:1 or more. If you don't do the bottom end teardown and reassembly yourself, installing a new rod can get pretty spendy.

[hart]

yeah thats why i wanted to go with the highest possible comp with out a new rod im not the kind of person with money comin out my ears but i doo like my horse power!!ahah thanks alot for all ur guys imput,this has been a great help! as i said before i used to have a 426 will i notice a big drop goin down to a 416?thanks again!

[cals400ex]

the difference between the 426 and 416 shouldn't be noticable.