[AT] Weird truck problem was RE: 8V 71 Detroit in a MackCaboverfor Ralph

Steve W. falcon at telenet.net
Sat Mar 6 14:11:11 PST 2010


Ralph Goff wrote:
> ----- Original Message ----- 
> From: "charliehill" <charliehill at embarqmail.com>
> To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
> Sent: Saturday, March 06, 2010 12:30 PM
> Subject: Re: [AT] Weird truck problem was RE: 8V 71 Detroit in a 
> MackCaboverfor Ralph
> 
> 
>> Carl they were probably either 348's or 409's.  Were the valve covers kind
>> of sculpted out on the lower side?
>>
>> Charlie
> 
> Sounds more like the rare and remarkable GM "twin six" offered back in the 
> fifties. IT was a V12 engine with 702 cubic inches. I hear a restored one 
> showed up in a truck at a local show last year. Would have been worth seeing 
> (and hearing)
> http://en.wikipedia.org/wiki/GMC_V6_engine
> 
> Ralph in Sask. 
> 
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> 

They were the power gasser of the day. Basically they used a special
crank and block along with the heads and guts from the 351 V6.
The Air Force used them in missile transporters.

-- 
Steve W.




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