452 heads

[dodgecharger71]

I have a set of 452 heads that came off my 1975 440 motorhome motor. What I am wondering if 452s are good heads to go with, i know most people say that by the time you do all the work getting them ported and polished that you could buy a set of stealths for less. If i can somehow get a good deal on head work with a machine shop nearby, are they worth it?

[Cudadrag]

I have a set that I replaced with B1s. They serverd me well in a high 10 sec Duster. The valvecover bolt holes are fragile. But they can be ported decent.

[Rich Kinsley]

They are good stock heads as I recall. Some prefer them over the others. It is kinda iffy as to whether it's worth the money to mess with them. The aluminum heads allow you to run about 1 point higher compression with the same gas octane. I guess it's the cooling that allows it. Also be sure the heads are the same as pass car heads. I seem to recall something about motorhome heads sometimes being different and won't work with the same manifolds??? I don't remember the application but there was someting about that in a truck and/or motorhome.

[dodgecharger71]

@ cuda thanks for your input its good to know that coming from someone who ran em in a 10 sec car so at least now i know there reliable lol

@rich yea ive heard the same thing, the only thing i have are the heads, crank, and rods. So ill have to do some research on what intake and exhaust manifolds to get. Thank you for your help

[Cudadrag]

Originally Posted by dodgecharger71

@ cuda thanks for your input its good to know that coming from someone who ran em in a 10 sec car so at least now i know there reliable lol

@rich yea ive heard the same thing, the only thing i have are the heads, crank, and rods. So ill have to do some research on what intake and exhaust manifolds to get. Thank you for your help

No block? If all you have is Rods, crank and heads I would DEFINATLY look at a 451 build. The 400 block is far less expensive and will produce more power per cubic inch. The 452 head does work well with both B- (383-400) and RB motors (440)

[dodgecharger71]

Originally Posted by Cudadrag

No block? If all you have is Rods, crank and heads I would DEFINATLY look at a 451 build. The 400 block is far less expensive and will produce more power per cubic inch. The 452 head does work well with both B- (383-400) and RB motors (440)

No, I have a 1975 440 block, i was just saying that everything else was junk except the heads, crank, and rods. Also the 440 i have is what everyone seems to call the "premo" block to have since it has dog-bone shaped coolant passages between the cylinders and a thicker main webbing to support the main bearings. I would like to go with your suggestion but since i already have a block id like to stick with it. But thank you for that info anyways maybe in the future ill build a 451