Engine 2.7 or 3.0 ??
 

Ive been looking at this engine # 6270384

Would this be a 2.7 or a 3.0 ?

What would the stock HP be?

2 = US 911 S ?????

6270384

6 = Unit type 6-cylinder engine.
2 = 911S – USA, 2.7, 165 hp.
7 = Model year 1977.
0384 = Consecutive serial number.

This can be engine type 911/85 if for manual transmission or 911/90 if Sportomatic.

This has a magnesium crankcase, 5-blade fan and thermal reactor exhaust.

Best,
Grady

What would designate a 3.0 ?

There are:
A Carrera 3.0, 1976-’77.
A 930 Turbo 3.0, 1975-’77.
A 3.0 RS, 1973-’74.
A 3.0 RSR, 1973-’74.
A 3.0 911SC, 1978-’83.
A 3.0 911SCRS, 1983.
A 3.0 934 Turbo, 1976-’77.
A 3.0 935 Turbo, 1977-’79.

Of course the only 3.0 commonly available is the 911SC.

Best,
Grady

So, what would the # designation on the Engine number be to designate the 3.0 ?>

This engine has a "2" which makes it a 2.7 . A 3.0 would be a " ? "

Engine numbers are the form:

6XYzzzz where:

6 = Unit type 6-cylinder engine.
X = listed below.
Y = Model year: 8 = 1978, 9 = 1979, 0 = 1980, 1 = 1981, C = 1982, D = 1983.
zzzz = Consecutive serial number.

X =
For 1978-’79:
1 = 911 SC Japan, 3.0, 180 hp.
2 = 911 SC USA, 3.0, 180 hp.
3 = 911 SC RoW, 3.0, 180 hp.
5 = 911 SC California, 3.0, 180 hp.

For 1980:
3 = 911 SC RoW, 3.0, 188 hp.
4 = 911 SC USA, 3.0, 180 hp.

For 1981:
3 = 911 SC RoW, 3.0, 204 hp.
4 = 911 SC USA/Japan, 3.0, 180 hp.

For 1982:
3 = 911 SC RoW, 3.0, 204 hp.
4 = 911 SC USA/Japan, 3.0, 180 hp.

For 1983:
3 = 911 SC RoW, 3.0, 204 hp.
4 = 911 SC USA/Japan, 3.0, 180 hp.

Best,
Grady