Mar 24, 2004 · If this is the case, the Dodge 318 won't fit your bolt pattern. Mopar makes an old 318/360 engine that always was carburated. They share the same bore/stroke size as the Magnum engines. The newer Magnum engines 5.2/5.9 are different internally but share the same bolt pattern except for the notch for the CKP.. "/>