GM SPEEDWAY
MODEL
YEARS
PISTON PART # WÖSSNER COMPR. RATIO OEM COMPR. RATIO
PISTON SIZE
OVERSIZE
RING SET
GM SPEEDWAY
ALL
8811DA
89.92
STD
900ADS-2
GM 90
ALL
8811DB
89.93
+0.01
900ADS-2
GM 92
ALL
8811DC
89.94
+0.02
900ADS-2
OEM
8811D200A
91.92
+2.00
920ADS-2
8811D200B
91.93
+2.01
920ADS-2
8811D200C
91.94
+2.02
920ADS-2
54
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