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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



#6 GregP

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Posted 14 December 2017 - 02:57 AM

Hi Rick,

 

I visited Joe Yancey and he has a V-3420 crankcase sitting in plain sight, so I can get center-to-center dimensions next week.


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#7 RickG52

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Posted 01 January 2018 - 05:46 AM

 THANKS GregP, Any info will be greatly appreciated. Pics of the crankcase would be really helpful too. Would be glad to compensate you for the pics. Please LMK..   HAPPY NEW YEAR everyone !!



#8 GregP

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Posted 02 January 2018 - 06:16 AM

Hi again. Joe has been VERY busy moving and it may take a bit before I can get access. He is moving his shop right now and MUST be out very soon.


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#9 RickG52

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Posted 04 January 2018 - 09:01 PM

THANKS GregP. I appreciate your help.




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