Crate motor could be anything but "crate motors" did not become available until long after the 327 was no longer produced. Most likely a 350.
250 HP, regular fuel 327s were equipped with small (torque) heads, cast pistons, rods and crankshaft and a Rochester 4GC carburetor. HP 300 HP 327s were equipped with forged crankshafts, rods and pistons (flat top), a single Carter AFB carburetor with cast iron intake manifold and 1.94 double hump heads. SHP 327s were equipped with forged crankshafts, rods, pistons (pop up) and 2X4 Carter AFBs with an aluminum intake manifold. Exhaust manifolds, pipes, mufflers and tailpipes were larger on 300 and higher HP 327s. The last SHP 327s, e.g., 350 HP, etc., were equipped with Holley carburetors.
Inspect the intake manifold. If it truly was a crate motor, it almost certainly came with an aluminum intake manifold designed for a Holley carburetor. Unless it has 2.02 heads (unlikely), headers, and a very big camshaft (again unlikely) a 550-600 CFM carburetor with vacuum secondaries would be about right.
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Today's Featured Article - Madison's County - by Anthony West. Philip Madison has been a good friend of mine for quite some time. He has patiently suffered my incessant chit chat on the subject of tractors for longer than I care to remember, and on many occasions he has put himself out, dropped what ever it was he was doing, to come and lend a hand cranking handles, or loading a find onto a trailer. Although he himself has never actually owned or restored a tractor, he was always enthusiastic and always around helping with other peoples projects.
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