914/6 Conversion Project, Identifying Engine Specs Options

[Dugo16]

I recently picked up a 914/6 conversion project car. I am in the process of trying to figure out what is in the engine without fully disassembling it since it appears to be in good shape. Engine is out of the car. Here is what I know so far.

- 1972 911T Case (911/07)
- 90mm Cylinders (90zn2)
- K1819n heads (one is a K1819g)
- 40IDS3C carbs

Trying to figure out what cam and crankshaft are in there.

Valve lift measurements below where measured with a dial gauge placed on the valve retainer.

- Intake lift .402
- Exhaust lift .376

Stock cam?

I figure the crank is a 66mm but it could be also be a 70.4mm from what I have read. Anyway to figure that out without disassembly?

Thanks in advance for any info. I appreciate the massive amount of knowledge the 914world community has!

-Doug

[Dugo16]

Moving on to the clutch and trans.

Clutch disc only shows wear on the outside half on the flywheel side. Is this normal? Normal for a new clutch disc?

Clutch disc measures at 9.7mm so thinking it is pretty new based on new ones being around 10mm. Flywheel surface looks good and appears to be flat using a small straight edge.

-Doug

[porschetub]

Moving on to the clutch and trans.

Clutch disc only shows wear on the outside half on the flywheel side. Is this normal? Normal for a new clutch disc?

Clutch disc measures at 9.7mm so thinking it is pretty new based on new ones being around 10mm. Flywheel surface looks good and appears to be flat using a small straight edge.

-Doug

You can most likely reuse that clutch disk but not with that flywheel without getting it ground and resurfaced, post some pics of the flywheel and pressure plate would be handy to help you further, cheers.