Mopar 383 Questions

[Fordication]

Ok so starting the thread again. Mopar 383, all of the codes I mentioned finally made sense after I looked at the block yesterday. The stamped numbers on that boss were F383 12 2 2 HP. So based on that information the engine came out of a B Body car from 1970 as from my reading the C Body cars did not have HP engines. I assume that is correct but do not know if its factual. Based on those numbers I think I do want to rebuild this engine if possible. If the cylinder has to be sleeved, is that bad?

 

[69hemibeep]

Nothing wrong with a sleeve if done properly

 

[Fordication]

Nothing wrong with a sleeve if done properly

Thank you. I am going to talk to my local shop in a few days about it. I really want to use this block even though its not numbers matching. I wonder whose car it came out of and if the car is still on the road.

 

[70chall440]

I believe that some C bodies did get HP stamped engines, you have to remember that in production a block is a block and while the muscle car people might get excited if they didn't have the "HP", the C body owners probably would never know or care. That said, an HP block is no different than a non HP block, it was the internals that made the difference and since you are rebuilding anyway it doesn't matter.

 

[moparleo]

It depends on the reason it needs a sleeve. Cracked? Bored too far oversized ? rust pitted ?... The more it is bored, the less stiffness you have in the cylinder bores which effects power potential. I f it is for a cruiser, as long as there is no unseen damages and it has not been bored to death, sleeving done properly works just fine.

 

[Fordication]

Thanks. Just talk to the builder and for that engine with stock rebuild $2500 with a sleeve and $2400 without a sleeve. If I supply the parts I want and have the heads ported and polished we have to talk he said. I would want to rebuild with a bigger cam and roller rockers if available. I know aluminum heads are the way to go but I think I will just upgrade the intake to a better intake and the internals to better more advanced parts. To be honest, I am getting ahead of myself. I have a ton of other work that is more important than the engine I have to do and I have to sell one of my mustangs as well. Wife said I am spending to much.

It depends on the reason it needs a sleeve. Cracked? Bored too far oversized ? rust pitted ?... The more it is bored, the less stiffness you have in the cylinder bores which effects power potential. I f it is for a cruiser, as long as there is no unseen damages and it has not been bored to death, sleeving done properly works just fine.

 

[Chryco Psycho]

Plymouth had the Super Commando , Dodge had the Magnum& Chrylser had the TNT & yes Chrysler did get performance engines .
I would use a stroker kit from 440 Source & build a 432 ci , basically a 440 with lighter internals no one will be able to tell from the outside & the build will not really cost anymore then reworking the stock internals .

 

[Fordication]

Plymouth had the Super Commando , Dodge had the Magnum& Chrylser had the TNT & yes Chrysler did get performance engines .
I would use a stroker kit from 440 Source & build a 432 ci , basically a 440 with lighter internals no one will be able to tell from the outside & the build will not really cost anymore then reworking the stock internals .

I will look into this as well. Thanks