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Buick 300 (4.9) / 340 (5.6) casting numbers

Block Cast # Year Displacement
1357943 64-67 300
1374547 64-67 340
1374557 64-67 300/340 ?
1374871 65-67 300
1375161 65-67 300
1381621 64-67 340
1381622 66-67 300
 

Intake Manifold
Cast #
Year Displacement
1358504 64 300 2bbl
1359122 64 300 4bbl
1366695 65 300 4bbl
1367299 65 300 4bbl
1374559 66 340 4bbl
1377507 65-66 300 2bbl
1378707 67 340 2bbl
1379948 66-67 340 4bbl
 
Head Cast # Year Displacement
1366379 64-67 300
1374720 67 300
1374870 64-67 300/340
1376329 66-67 340
1376330 64-67 300/340
1378470 65-67 300
219 64-65 300
330 64-67 300/340
382985 67 340
790 66-67 300
 

Exhaust Manifold
     Cast #
Year Displacement
1364178 right
1359689 left
64 300
1369310 right
1359689 left
65 300
1375907 right
1375912 left
66-67 340
1375910 right
1375917 left
66-67 340