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Author Topic:   305 crank
zeroracing
Member
posted March 15, 2004 02:42 PM
Just get the rotating assembally balanced and you'll be ok.I've ran them ran them before for 2 seasons without problems,turned 6800-7000 r's.


zeroracing
Member
posted March 15, 2004 03:50 PM
The 305 crank is lighter due to the fact it was ballanced for a smaller rotating assy. and have smaller counter weights. As for how much lighter? We ran them in a few cars when we were using lighter stuff and they lasted pretty good. The only bad thing is if you are using STD weight 350 piston/pin/rod sets they will have to use mallory metal to ballance it. $$


Raz_900
Member
posted March 16, 2004 10:54 AM
I used one in one of my motors (several times as it was rebearings, then cut and used again last year) with LW Keith Black .030" 350 pistons. They were actually able to balance it with 2 steel slugs in the factory balance holes. Saved me about $50 in mallory metal. Aside from the balance issue, I don't think it's any weaker than a 350 piece. They're the same casting number and probably just have more or deeper balance holes drilled in the weights.


sixmod
Member
posted March 16, 2004 12:04 PM
Weighed one last night and it was 46 pounds. I think it is about 6# lighter than a 350. But if you gotta add steel to bring it back up nit sure what the final weight would be obviously. Gooa try it though and see, will keep you posted on that.


monteregal7
Member
posted March 16, 2004 08:55 PM
We used both crank and the rods in our engine. The rods are for sure lighter. We turned ours 6250-7500 for 40 nights.


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