the never-ending 400 story

[gremjimi70]

I am putting together my 400 last week. I got the whole bottom end together just to realize that the cam lobes of no. 2 and no.5 contact the connecting rods. I thought it wasn't going to be an issue because I bought capscrew style rods?.... Anyway I had the whole thing balanced. I talked to the machinst, he believes that, as long as I do all of them equal it shouldn't need to be rebalanced. How much, if an, off the current weight should I be worried about?

[pat mccarthy]

you can nip the rods. you should have 060 of room. you could just nip the two rods. would not throw it off that much. i would nip all the rods so there somewhat the same. they make a stroker rod with cap screws you must of not pick that rod to use . you can run a small base circle cam that helps to.no you should not need to rebalance the engine if you just do the two or all of them you will be ok

[vstech]

the problem I ran into with this, is with hydrolic lifters, you cannot run a small enough base circle to clear unmachined rod bolts.
you will have to buff the heads of the bolts on the inside edge.

[pat mccarthy]

yep i been there with a thru bolt rod thats were you have to nip them .but he using a cap screw rod and they make them both in a stroker rod and not ether way it helps some and so will a small base cam