354 has a 3 7/8 inch bore, if I recall the 372 has 3 15/16 inch bore. 372 was in some MF 750 combines. Four cylinder 236 and 248 were similar versions..
 
372 had sleeves too like the 354, just thinner. 354 and 4.236 used the same sleeve. 372 and 4.248 used the same sleeve. Only Perkins I've seen without sleeves is my S90 puller, has no head gasket either..
 

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