Teaser

[Rodeheaver's]

More material has to be removed in order for it to be balanced within spec.
Ask any Reputable builder/balance shop that has built many 393, 408, 418, and 427's.
Much of this depends on the crank being used also.
Building a 393 is kinda like building a 331.... why take less cubes/power when your already in the process of building the engine?

well, 1st, the amont of material being taken or added to the crank depends on the bob wieght. 2nd, it depends on what balence you are using, 28/50/0 balence... and there are reasons people build 331s, its usually becuase the wrist pin is up in the oil ring on a 347 causing more oil useage and a short stroke is always a reving monster, long stroke engines keep the piston at tdc for a longer period of time and this is not desireable is some combos, and i have met lots of guys that destroke engines to make more power, cubes = TQ... rpms = HP... and a long stroke engine is less stable at super high rpms, but hey you know it all, maybe you should not read anything i post so you will not have to disagree with it jsut becuase it came from me....

[biminiLX]

anytime that wrist pin is up in the oil ring you will have oil issues... and i think its up there on a 408, but i cant remember totally...

it's not

[Rodeheaver's]

it's not

thats a good thing.. i should remember as i just did a 408 for a guy..

[biminiLX]

thats a good thing.. i should remember as i just did a 408 for a guy..

I hear ya, wish I would have taken engine pics when mine was assembled (my 427 is just a big bore 408---4.125x4.0)
-J

[gmkillr]

well, 1st, the amont of material being taken or added to the crank depends on the bob wieght. 2nd, it depends on what balence you are using, 28/50/0 balence... and there are reasons people build 331s, its usually becuase the wrist pin is up in the oil ring on a 347 causing more oil useage and a short stroke is always a reving monster, long stroke engines keep the piston at tdc for a longer period of time and this is not desireable is some combos, and i have met lots of guys that destroke engines to make more power, cubes = TQ... rpms = HP... and a long stroke engine is less stable at super high rpms, but hey you know it all, maybe you should not read anything i post so you will not have to disagree with it jsut becuase it came from me....

How am I disagreeing with what you said? All I stated was that in some instances the 393 is harder to balance. Your the one who questioned what I said cause you apparently disagreed with it.
Please don't turn Billy's thread into a pissing match.........

Back to the topic please.....