SillyxMongoose

Does anyone know what the standard valve size was for a 452 Casting head off a 440 from what I believe is a 74 Engine, though the heads might be off a different block. (Guy I got the car from couldn't even tell me the size of the engine let alone the internals.)

Any info would be really helpful, I don't have a micrometer at the moment.

moe7404

my 1967 factory paper service manual. the 440 intake valve head was 2.08". the exhaust std engine is 1.60 head dia. the power pack exhaust head was 1.75 dia. my memory thinks the 1966 had ONLY 1.60 exthaust head, NO power pack. dont know about latter years.

SillyxMongoose

Well finally went out and bought the micrometer, Moe7404, you are correct on the valve size's. I wish I knew you were before I went and bought the micrometer because I would of had these parts already on order, Ha ha. Thank you for your help.

moe7404

when it comes to part number sizes from chrysler they can NOT be dependable. if you bought a 0"-1.0" mic it will work for to check the stem dia. to check the head dia get a dial caliper. harbor fright has a 4" one and a 6" one. i use a 4" one for my RC stuff. be sure and check that they work before taking it home

SillyxMongoose

I bought a micrometer and measured the old ones before I bought the new ones, it looked like they were a hair off but close enough that I knew which ones to order. I imagine because of how they got beat up due to the thing that went into the engine block that it misshaped them a little. And I couldn't get them local, I had to order a couple off of Summit.