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Old 07-26-2010, 05:25 PM   #1
Kingpen
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Default SBC Small Jnl ground to Honda pin size

was wondering since the new rules on rods in S/S,has anyone had any luck ,or issues,with taking a GM small Journal crank down to the honda rod jnl size?Ive done it many times going from 2.100 to 2.0" but will it work on the 2" pin down to the 1.880?my concerns are "moving" the oil hole over too far, or just making the crank weak,or what?????any comments good & bad............thanks Vic Penrod
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Old 07-26-2010, 05:29 PM   #2
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Default Re: SBC Small Jnl ground to Honda pin size

Vic,
PM
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Old 07-26-2010, 06:55 PM   #3
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Default Re: SBC Small Jnl ground to Honda pin size

I'm interested also!
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Old 07-27-2010, 06:19 PM   #4
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Default Re: SBC Small Jnl ground to Honda pin size

I have talked to some crank grinders(Bullet & Callies) and they cant really say yes or no on the subject...Ive also talked to one of the local grinders that says he did a 3.480 stroke big journal (2.100) down to the honda(1.880) for a dirt car 4 years ago and it is still going...I could see that working if it was offset ground to increase the stroke & maybe not be an issue on uncovering too much of the oil hole...........Vic
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Old 07-27-2010, 07:04 PM   #5
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Default Re: SBC Small Jnl ground to Honda pin size

Never mind.
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Old 07-27-2010, 07:49 PM   #6
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Cool Re: SBC Small Jnl ground to Honda pin size

Its being done and they are living OK.
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Old 07-28-2010, 07:15 AM   #7
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Default Re: SBC Small Jnl ground to Honda pin size

Works fine, i have ran 3 motors to 10.600 rpm. no problems.
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Old 07-28-2010, 09:42 AM   #8
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Default Re: SBC Small Jnl ground to Honda pin size

I had a 2.1" Scat turned down to 1.88' with no problems.
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Old 03-23-2011, 03:13 PM   #9
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Default Re: SBC Small Jnl ground to Honda pin size

Was there anything special that had to be done to the oil holes other than radiusing them? Do you think going to 1.850 is ok?
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Old 03-23-2011, 03:47 PM   #10
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Default Re: SBC Small Jnl ground to Honda pin size

Oil holes are just radiused. No problems.
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