Editing S30/engines (section)

== Piston Differences ==

Like the heads and blocks there were many different pistons used in the L Series engines. All pistons were cast Aluminum with 2 compression rings and one oil ring.

The main difference between pistons in the L series is weather or not they are flat top or dished. The Following chart will show you what pistons came in what car and block.
|
'''Model'''
|
'''Bore'''
|
'''Wrist Pin Height'''
|
'''Pin Diameter'''
|
'''Dish/Dome'''
|
|
L24 E31 and P30 Block 1970-1973
|
83mm
|
38.1mm
|
21mm
|
0 Flat top
|
|
L26 Early P30 Block 1974
|
83mm
|
38.1mm
|
21mm
|
0 Flat top
|
|
L26 Late P30 Block 1974
|
83mm
|
38.1mm
|
21mm
|
-7.01cc Dish
|
|
L28 Early? N42 Block 1975-1980
|
86mm
|
38.1mm
|
21mm
|
-10.9cc Dish
|
|
L28 Late Non Turbo F54 Block 1981-1983
|
86mm
|
38.1mm
|
21mm
|
0 Flat top
|
|
L28 Late Turbo F54 Block 1981-1983
|
86mm
|
38.1mm
|
21mm
|
-10.9cc Dish
|

[[Category:Imported from Xenonzcar]]