Help to identify my engine.

[teveo]

Some weeks ago I took out this tuned (revs easy to 7500 rpm) 2 liter from my 70S. I have found a correct 2.2S engine that I am in the middle of installing.

Now, this 2 liter is a fun engine and I want to use it in a SWB 911 FIA rally car that I am projecting/collecting parts for.

I took alot of pix today and maybe some can be of help to identify. Extra information, no type number or serial number. Never grinded off either. Stamped (june?)/67 to the left of the pulley.

The intermediate shaft cover is listed at Frisinger as a "Historic racing part"
http://www.freisinger-motorsport.de/porsche/uk/Porsche_Historic_Racing_Parts.html?id=2306&catalog=5&inquiry=1

Any info and help to identify the engine is very welcome.

[Flat6pac]

Pre 68 aluminum case
modified chain box attachments from later model
cam carriers from later model
incorrect intermediate shaft cover, typically the same as through 68 to 75
I recently opened one typical of this..everything inside was 2.7 RS

Bruce

[kenikh]

unstamped early alu case - NICE

[teveo]

The engine is too good to take apart, let me race it one season and I will tear it down.. (however i need a swb 911 first.. )

[teveo]

Got some pix of the heads and the top of the case, matching # 971

Heads seem to be '73 right?