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V6 Buick 225 (3.7) Casting Numbers, Buick 198 (3.2) Casting Numbers

Buick 225 (3.7) Casting Numbers

Head Cast # Year Displacement
1358676 64-67
225
1358766 64-67
225
1358767 64-67
225
1364391 64-67
225
1368767 64-67
225
1376346 64-67
225
1378348 64-67
225
1386767 64-67
225
992326 64-67
225
 
Block Cast # Year Displacement
1358435 64-67
225
1396314 64-67
225
1858435 64-67
225
 

Buick 198 (3.2) Casting Numbers

Head Cast # Year Displacement
1354391 62-65
198
1364391 62-65
198
 

Intake Manifold # Year Displacement
1351573 62-65
198
-
-
-
 
Block Cast # Year Displacement
1349430 62-65
198
 

Exhaust Manifold # Year Displacement
851728 Left 62-65
198
-
-
-
 

A letter or number after the casting number as in 1165165 X or -3 may indicate a change in update in the casting. This would mean a higher letter would be a later production.