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How do you tell 460 Ford engine from 390 with out tearing down?

December 16th, 2010 · No Comments

Problem: I have 2 1973 Ford F250 trucks and was told one is 390 and other is 460. All info i found was on vin id and i do not know if engines have been changed or not.

Answer: 390 has 5 valve cover bolts, 460, if I’m right has 7
460, you can put an egg on top of valve cover because top is flat, where 390 is Round. Look at serial no. of truck, if it has an A somewhere in the middle its 460.

Answer: Produced from 1968 to 1996.
# Available in Ford, Mercury and Lincoln.
# Same as 429, but with longer stroke. (3.85 inch)
# During its earlier years, pre 1973, horsepower was rated at 365. After 1972 horsepower ranged from 208 to 275.
# Intake/exhaust valves are 2.08/1.66
# Intake/exhaust valves for the Police Interceptor 460 heads (from 1973-’74) measure 2.19/1.66
460
Head Casting C8AE-A C8AE-B D2TE-AA
Block Casting C8AE-C C8AE-A D3TE

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