piston options for 24v s/o engine

[scourcy]

i am trying to find out if durability or reliability can be improved by the use of aftermarket pistons. the engine will get 80-100 horse injectors and a timing box and larger turbo. thanks

 

[CumminFast]

yes it can

 

[mattymac]

With that power upgrade the stock ones are just fine. save your money for your other aftermarket goodies.

 

[scourcy]

pistons

thanks for the info. although not exactly a flood from cf. it is much appreciated.

 

[Partyat33]

I would have to agree go with the stock pistons. Interestingly enough if you the the pistons and rings separate they are Much cheaper.





Dennis

 

[scourcy]

pistons

thanks for the info. the problem with the original pistons is the shop that cleaned them decided to bead blast the top ring area to clean it. this was done against my instructions when they were delivered to the shop to be cleaned. had a diesel mechanic look at them and he said there "should" not be a problem. i. e. they will probably hold up. i am just not willing to put all this time and money into this eng and have to take it back out and do it again. according to the parts place the pistons come with rings, they do not sell just the pistons or just the rings. looking at approx 150. 00 per piston with rings. not fun. thanks

 

[Mundgyver]

If it was against your instructions, I would say they owe you some new ones.

 

[CumminFast]

just get some marine pistons

 

[scourcy]

pistons

marine pistons sound good, where or who stocks them ?.

 

[Partyat33]

Unless you are going to really bomb it, I can't see going to marine pistons either.



My . 02

 

[scourcy]

sounds like marine pistons would give some room for more hp later on. nice to have room to grow.

 

[Partyat33]

You must be planning on doing a lot of growing. Talk to the experts before you decide. I just rebuilt my engine due to melted pistons. I talked to a lot of experts, they told me unless I am sled pulling, go with the regular. Of course I was on a budget.









Good Luck

 

[Hohn]

I would suggest the stock SO pistons. But with this addition:



GET THEM COATED! Swaintech coatings offers the premier engine coating service. www.swaintech.com



I'd suggest the full treatment-- polymoly on the skirts, and GoldCoat on the piston crowns.



I've seen the results firsthand that coatings can give you. As far as I'm concerned, rebuilding an engine without coated parts is foolish!



Don't get caught naked-- coat those pistons! (and bearings, and valves, etc etc).



justin



EDIT: Swain's credentials include IRL, NASCAR, F1, and NHRA Top Fuel. They are the "big dogs" in coatings. .

 

[CumminFast]

Partyat33

why not go with marine pistons???? Do you have them in your truck? Do you have experience w/ these pistons? Marine pistons barely lower the compression and also have more oiling holes. They are the same price as stock pistons and you should be able to get them at your local cummins dealer. Whatever you do get cummins brand pistons. If I were you I would shave the pistons a little bit to prevent head gaskets from blowing a little later on. IMO coating pistons is a waste of time. If you are running 3000 degree EGTs in your truck and it is a 1000hp engine you might consider coating, but I see no use for it otherwise. Also Hohn you are coating your bearings?

 

[Partyat33]

It all depends on the application. I was advised to with stock pistons so I did. I do not have any personal experience with marine pistons. I have talked to many people who do head work and state the pistons still look perfect at over 100k miles. I just happened to melt mine.



Live and learn.

 

[CumminFast]

I really think you cannot go wrong with marine pistons in any application. How in the hell did you melt your piston(s)???

 

[Vaughn MacKenzie]

Piston weight

I thought I read on another long thread discussing pistons that the Marine slugs weigh quite a bit more. If so then you gotta consider bearing durability and RPM limitations, as well as engine balance. Just something to check into, to see if this is the case or not.



Vaughn