Quote:
Originally Posted by Reed Granrt
Going in memory, the 327 with 250 hp had the 283 cylinder heads with a 1.75 int valve and a 1.5 exh ,small intake with a 4GC car and small exhaust pipe. The 300hp had the double hump heads with 1.94 intake valve with 1.5 exh with a larger intake manifold with the AFB with larger exhaust manifold.
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Except '65; the 327-250 used the same heads as the 327-300 in 1965. Been that way as long as I remember.