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Buick Nailhead Casting Numbers
Block Cast # Year Displacement 1169334 56-59 322 1173201 59-61 364 1174372 59-61 364 1185484 59-60 401 1185404 61-66 401 1196546 61 401 1196547 61 364 1340146 63-66 425 1346046 61-66 401 1349046 62-66 401 1354713 64-66 425 1354714 64-66 425 1364704 63-66 425 1364705 64-66 401/425 1364707 63 425 1364714 64-66 401 *Chev truck
Head Cast # Year Displacement 1165549 54-56 264/322 1166349 54-56 264/322 1168930 56 322 1169349 56 322 1172889 59-60 364/401 1175109 56-59 322* 1185485 61-66 364/401/425 1190415 62-66 364/401/425 1196914 59-66 364/401/425 1374603 64-66 401/425 1376912 66 401/425 *Chev truck
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Exhaust Manifold
Cast #Year Displacement 1345564 right
1345564 left53 322 1165212 right
1345564 left54-55 264/322 1168110 right
1169265 left56 322 1175576 right
1175575 left56 322 1168110 right
1169001 left56 322 1175576 right
1175581 left56 with duals
and series 70322 1187336
118546357-58
RM, Limited364 1185463 right
1185463 left57-58 364 1185602 right
1185603 left59-60 364, 401 1185602 right
1186291 left59-60, duals 364, 401 1196974 right
1196457 left61 364, 401 1351702 right
1348477 left62 401 1396568 right
1348477 left63 401, 425 1377480 right
1348477 left64 401, 425 1377480 right
1367159 left65-66 401, 425 1377476 right
1372319 left65-66 GS 401
Intake Manifold
Cast #Year Displacement 1165308 53 322 2bbl 1162286 53 322 4bbl 1165308 54-55 322 2bbl 1163206 54-55 322 4bbl 1165308
1169189 man. trans.
117062455 322 2bbl 1165384 55 322 4bbl 1170624 56 322 2bbl 1170625
50/60/7056 322 4bbl 1175327 57-61 364 2bbl 1173313 57-61 364 4bbl 1187708 59-62 401 4bbl 1349425 62 401 2bbl 1187708 62 401 4bbl 1355410 63 401 2bbl 1353531 63 401 4bbl 1375548 63 425 1375548 64-66 401 4bbl 1357106 64 425 2x4bbl 1370316 65-66 425 2x4bbl 1375518 66 401 4bbl 1375118 66 401 4bbl
322 8 3/8" 364 8 7/8" 401-425 9 1/8"
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