428 FE police interceptor versus cobra jet

[Jerry Clayton]

IIRC look at the exhaust manifold bolt pattern-------------the 390GT and 428CJ had a different bolt pattern (had some more holes and an tab on the head for the pattern--the standard engines only had the vertical pattern with a bolt at top and bottom of port

also police interceptors had solid lifters and adjustable rockers---GT & CJ were hydraulic

[DanEC]

Originally Posted by Jerry Clayton

also police interceptors had solid lifters and adjustable rockers---GT & CJ were hydraulic

What else distinguished police interceptor 428s from standard 428s like in the 66 Galaxie 7 litre? I know there was a specific police interceptor single 4bbl intake manifold and now that the cam was a solid lifter. Was there any difference in the block or heads?

[Bernica]

Look above the oil filter for a block casting number. Below is what one of my books says. Also, I have heard that if you pull the freeze plugs and look inside at the outside of the cylinder wall, they used to cast "428" on the outside of one of the cylinders. Fact or fiction? Can't say, but I recall seeing a pic once.

C1AE-H, N or V: 61 390 Police Interceptor (PI) w/mech cam

C2AE-BC or BE: 62 390 PI w/ mech cam
C2AE-BR or BS: 62 390 PI w/ mech cam

C3AE-Y, K or KY: 63 390 PI w/ mech cam
C3ME-B: 63 390 PI w/ mech cam

C4AE-F: 64 390 PI w/ mech cam
C5AE-B: 64 390 PI w/ hydraulic cam

C6AE-F: 66 428 PI w/ mech cam

C8AE-R: 68 428 PI w/ hydraulic cam


Hop this helps narrow it down a little. Good luck.