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-   -   Piston's & Cylinder's for '78 SC (http://forums.pelicanparts.com/911-engine-rebuilding-forum/1183100-pistons-cylinders-78-sc.html)

schiarchianis 08-28-2025 03:06 PM
Piston's & Cylinder's for '78 SC
 
Will the pistons/cylinders with part number 930-103-983-05 (for an 81-83) work in a '78 SC? Pet chart indicates up thru 1980, the part number should be 930-103-962-03 (or -04). Thanks...Steve

targa72e 08-28-2025 03:58 PM
Yes, the later higher compression pistons (9.3 vs 8.5) with the early large ports is a nice combination.

john

schiarchianis 08-28-2025 05:25 PM
Quote:
Originally Posted by targa72e (Post 12523638)
Yes, the later higher compression pistons (9.3 vs 8.5) with the early large ports is a nice combination.

john
Thanks John. Would there be any drivability issues, or problems getting it smogged here in California?

Flat6pac 08-29-2025 04:49 AM
The biggest thing is, you have to use high test fuel.
Cams are the same but the settings are different
Bruce

Henry Schmidt 08-29-2025 07:37 AM
Quote:
Originally Posted by schiarchianis (Post 12523678)
Thanks John. Would there be any drivability issues, or problems getting it smogged here in California?
I have a program that will help with smog issues for all 911/930, 75-79.
Send me an email using the link below.


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