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-   -   Can someone run an Engine Number? (http://forums.pelicanparts.com/porsche-911-technical-forum/423710-can-someone-run-engine-number.html)

GrantG 08-05-2008 07:26 PM

Can someone run an Engine Number?
 
Would be most grateful if someone can tell me any relevant details (like year and model) about Engine #6133859. It is not the original motor for my 73.5 911T (now a 911R/RS/RSR Tribute car), afaik. It is a Mag case 7R motor...

Many thanks,
Grant

Bobboloo 08-05-2008 08:35 PM

That's a 73.5' CIS T motor.

bcketner 08-05-2008 08:38 PM

From the info that I have it is from a73 911T U.S. CIS with a side note that U.S. 911T switched from mechanical to K-Jetronic (CIS) fuel injection in January 1973
Engine Serial # 's start at 6133001 thru 6136092
there were 1,944 911T coupes produced
this is all the info i have but someone else on the forum may have more

Wayne 962 08-05-2008 08:54 PM

The tables in the back of my book (from which info I got from Porsche) show this as a 1973 1/2 CIS 2.4 magnesium case, engine type 911/91.

Hope this helps,

Wayne

GrantG 08-05-2008 09:06 PM

Thanks! Sounds like that is the original case for my car then. I always thought it was from a 2.7 CIS car.

Wayne 962 08-05-2008 11:12 PM

Nope, I would highly doubt that. It was somewhat common to take these 2.4 cases and bore them out to 2.7 displacement to give a good boost in HP, so that sometimes throws people off...

-Wayne

signature65 08-06-2008 07:57 AM

Anyone know when they switched from the 5R to the 7R case?


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