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Allison V-3420


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#1 RickG52

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Posted 03 July 2014 - 01:17 PM

I was wondering if anyone can give me the center to center dimenson of the crankshafts on the Allison V-3420. I'd like to attemp to build a 1/8th scale model of this engine. This dimension and any other specs for the V-3420 would be appreciated. THANKS

 

RickG52



#2 RickG52

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Posted 03 July 2014 - 01:19 PM

I was wondering if anyone can give me the center to center dimenson of the crankshafts on the Allison V-3420. I'd like to attemp to build a 1/8th scale model of this engine. This dimension and any other specs for the V-3420 would be appreciated. THANKS

 

RickG52



#3 Wuzak

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Posted 04 July 2014 - 09:16 AM

12 3/4" between the crankshafts.

 

From Vees for Victory by Daniel D Whitney.

 

The inner banks were 30° apart and the outer banks 150° apart.

 

The cylinder banks were identical to the V-1710. There was only one supercharger, which was slightly larger than the one on most V-1710s


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#4 GregP

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Posted 08 July 2014 - 05:08 AM

Hey RickG52,

 

Joe Yancey at Rialto, CA has two of these puppies. If you are anywhere close, I can get you a visit and some up close and personal pics and measurements.

 

Let me know, - Greg


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#5 RickG52

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Posted 01 December 2017 - 01:31 PM

Thanks for the info on the cranks Wuzak, and I appreciate your offer GregP. I'll take you up on that if I make it out that way. I'm actually just now getting a good start on the 3420 model, (I know, I know, it's been over three years), I'm terrible that way. I have hit the same snag that stopped me last time I started this project though. I don't have a reference picture of the 3420 BARE BLOCK @ what I call the back of the engine, ( carbs & supercharger). Having that ref pic would be a great help to me. If anyone here can help me out, I would greatly appreciate it. THANKS

 

RickG






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