Quote:
Originally Posted by pemz0r
I dissembled a 911 Engine and need some help with identifying it.
Engine Case - 901.101.101.7R (Mag)
Engine Number - 6144535
Weber Carbs - 40 IDA 3C - 5L
Cam Housing - 901.105.111.OR
What I am baffled with...
the heads are label 73 but the pistons are JE 90mm (2.7?) aren't 1973.5 heads 2.4?
Any information would be great!
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The engine case is from a 74 2.7 liter CIS
90 mm is a 2.7 if the crank is the original 70.4 stroke from the case.
The 73 on the head is the date of casting. It could be a 2.4 or 2.7 MFI, 2.4 CIS (73.5) or a 2.7 head.
If it is an MFI head it will have a thread boss for the injector near the intake studs.
If it is a 2.4 CIS head there will be an injector mount pressed into the head.
If it is a 2.7 CIS head it will have a slot cut in the intake port for injector.