engine help

72 Demon said

Not quite. Unless it's one of the M-body cop car 318s, the exhaust ports on the 360 are larger. Oil pans are also different. Check diameter of front main bearing with the balancer off. If carb is on motor and a Carter 2bbl it's a 318, the 360s used Holleys. The 360s, if it had a 4 bbl was a Thermoquad. The M-body cop car had a Quadrajet on the 318.

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Sorry man but I respectfully disagree. No 318 ever had 360 cast onto the side of it. You are correct about 360's having larger ports but they also had larger intake ports. Your also correct about the oil pan and carbs.

Moparman1 you definitely have a 360 there. You can also verify it by what Prine said about the cubic inch being stamped into the front of the block right below where the drivers side head mounts to. This is a stamping done with number punches though unlike the one on the side that is a raised casting.