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Buick 350 (5.7) Casting Numbers

Head Cast # Year Displacement
1232650 71? 350
1233472* 67-72 350
1237650* 70-72 350
1238145* 67-72 350
1233472 67-68 350
1237650* 70-72 350
1237749 70-76 350
1238145x 68-74 350
1240143 70-71 350
1241861** 72-80 350
1242145* 72 350
1242556* 70-80 350
1243452** 72-80 350
1247716 70-77 350
1382546 68-69 350
1382546* 68-74 350
1382720 68-70 350
22505236 73-80 350
22505238** 72-80 350
243452** 75-79 350
* Oils through push rods
** With A.I.R.
 350 heads are 58cc  

Exhaust Manifold
     Cast #
Year Displacement
1246656 right
1246713 left
75 350
1246658 right
1243457 left
71-74 350
1246658 right
1383427 left
68-70 350
1381750 right
1231359 left
70 350
 
Block Cast # Year Displacement
1241748 62-80 350
1231447 71? 350
1233472 67-68 350
1237650 70-72 350
481990 70-72 350
25504744 72-80 350
 

Intake Manifold
Cast #
Year Displacement
1231381 70 350 2bbl
1231924 70 350 4bbl
1236402 71 350 2bbl
1236839 71 350 4bbl
1238578 72 350 2bbl*
1238586 72 350 4bbl
1238643 72-73 350 2bbl
1238647 72-73 350 4bbl
1242014 72-73 350 2bbl*
1242015 72-73 350 4bbl*
1245057 74 350 2bbl
1245058 74 350 4bbl
1246677 75 350 4bbl calif.
1249166 75 350 2bbl
1249168 75 350 4bbl
1382615 68 350 4bbl
1382616 68 350 2bbl
1386845 69 350 2bbl
1387069 69 350 4bbl
 




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

Block Cast # Year Displacement
1357943 65-67 300
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
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
1375910 right
1375917 left
66-67 340
 

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