balancing

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balancing

Post  hpwdboss1 on January 17th 2015, 10:31 am

My buddy bought a +030 351 it is a fresh build, never fired, capable of 6800-7000 rpm. But it is equipped with rebuilt stock rods. Question is, would a set of Eagle H beam rods 21 grams heavier than the stock rods require re-balancing? No problem if it does we'll get it done, but I didn't know how much weight change we could stand till it is required.
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Re: balancing

Post  rmcomprandy on January 17th 2015, 12:23 pm

hpwdboss1 wrote:My buddy bought a +030 351 it is a fresh build, never fired, capable of 6800-7000 rpm. But it is equipped with rebuilt stock rods. Question is, would a set of Eagle H beam rods 21 grams heavier than the stock rods require re-balancing? No problem if it does we'll get it done, but I didn't know how much weight change we could stand till it is required.

Probably ... it may have been on the heavy side of factory spec if you wish to take that chance but, you won't know that until it gets spun or run.

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Re: balancing

Post  dfree383 on January 17th 2015, 1:53 pm

Factory rods are pretty decent in a Cleveland as long as the bolts have been upgraded.
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Re: balancing

Post  maverick on January 17th 2015, 2:01 pm

Is it a Cleveland?
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Re: balancing

Post  69F100 on January 17th 2015, 2:12 pm

dfree383 wrote:Factory rods are pretty decent in a Cleveland as long as the bolts have been upgraded.

If it is the Cleveland the rods are pretty good I turned mine 7500-8000 rpm with no problems until I dropped a valve and turned one rod into a s shape I put close to 25,000 hard mile on it
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Re: balncing

Post  hpwdboss1 on January 17th 2015, 9:09 pm

It's a Windsor with new ARP bolts, but he's bought the Eagles and wants me to  put them in. Its rollered and could get re-cammed a little later, so I'll put them in. Sounds like I should just take them and have Mcgunnegil spin it up and see. Thanks!
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Re: balancing

Post  dfree383 on January 17th 2015, 9:18 pm

Yes heavier should be rebalanced, you can get away with a little lighter.
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Re: Balancing

Post  hpwdboss1 on January 17th 2015, 9:41 pm

Thanks guys! I will feel better for having checked anyhow. Playing is to costly to save a little money out of ignorance and have problems because of it. I think my mother said penny wise and pound foolish.
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Re: balancing

Post  bbf-falcon on January 18th 2015, 2:16 am

hpwdboss1 wrote:Thanks guys! I will feel better for having checked anyhow. Playing is to costly to save a little money out of ignorance and have problems because of it. I think my mother said penny wise and pound foolish.

Yes Very Happy

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