What is it worth? 1963 Ford 427 C3AE H 6015

[Rpollard]

I bought a boat with a 427 Ford motor this year, considering replacing with modern 460 Ford Crate motor. I don't know munch about motor, the boat is a 1975. Compression was 140 to 190 so I had heads rebuilt this week at SPEED-O-MOTOVE in Covina, CA. Heads had some porting done previously, runs strong on the water. New Edelbrock RPM manifold, ,750 Holley Carb, MDS Distributor.

[SCOBRAC]

What's the bore? Condition is everyhting. Which crank? which rods were used? What heads are on the engine? Most boat engines were sort of a collection of parts. I could be $3500 it could be $10k. maybe more if it's a std/std with matching heads and good compression.

[FFR427]

The block is usually the only part of value on the marine 427s. Many of the marine 427s didn't have the forged crank and the heads are more than likely a "J" casting (ie C5JE) which both the heads and crank are equivalent to CJ parts but without the casting numbers. The front timing cover is probably cast iron and weighs a bunch. Also, be careful on some of the large Chris Craft boats that had 2 427s because one of the motors was typically reverse rotation. I learned the hard way on one of these motors.