Cylinder Head, Rocker Cover & Thermostat L24, L26 (To Nov.-'74)
part # model applied date qty interchange superceded
from to newer former
BOLT-CYLINDER HEAD L
11059-21000 L24 5
11059-P3000 L24,L26 5 Yes Yes 11059-21000
BOLT-CYLINDER HEAD M
11057-21000 L24 3
BOLT-CYLINDER HEAD S
11056-21000 L24 9
11056-P3000 L24,L26 9 Yes Yes 11056-21000