Thank you Bruce for the quick reply. Hugely appreciated!
Some clarifying questions if I may
Quote:
Originally Posted by Flat6pac
The heads are basically interchangeable
Torque value changes from 25#ft to 15#ft+90 degrees sweep,
|
So metal to metal and torque as you recommended. Any sealant?
I'd be curious to know the theory behind the change in approach to Torque approach - can you enlighten me please?
Quote:
Originally Posted by Flat6pac
The head intakes are different heights so the reason for the double gaskets and insulator.
|
Can you expand a little more on this sentence - not sure what the guidance is here?
It reads like an extra consideration I should factor in - but gaskets for where (cam housing?) and insulators I'm not sure what that is.
I re-read what I originally wrote and figured it could be read two ways - for clarity:
I have a 911 SC 3.0L 1978 - just in case my starting point may have been confusing. So its a basic 3.0 build with 3.2 cylinders sandwiched between the 3.0 case and 3.0 heads.
If I were to add that I'll either (a) use a stock Mahle 3.0 Piston or (b) go with something like a JE Piston - does that help color the job at hand? Does it make any difference to your reply?
Warm Regards
tom.