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pistons/rods install

12372 Views 46 Replies 19 Participants Last post by  davidp, 
davidp
how much should that cost ?? i'nm getting a set of forged rods and pistons for my car and i'm wondering how much the install should cost ..
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AKGC
usually $100~$200 an hour :p

Gotta disconnect everything, take off the hood, unbolt everything, start pulling the engine, go back and double check everything IS disconnected, put on engine stand. And this is just prior to the actual tear down of the engine. :p

The actual rebuild should take about an hour to 3 hours. All depends on if all the tools are present and how meticulous the mechanic wants to be.
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flylow
~$500
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Tufast
We (dealership) charge $95/hr & to rebuild a motor would normally account for about 20hrs time according to Nicholas Chiltons......so about $1900 in labor at the dealer.
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Rspecwhite
AKGC said:
usually $100~$200 an hour :p

Gotta disconnect everything, take off the hood, unbolt everything, start pulling the engine, go back and double check everything IS disconnected, put on engine stand. And this is just prior to the actual tear down of the engine. :p

The actual rebuild should take about an hour to 3 hours. All depends on if all the tools are present and how meticulous the mechanic wants to be.
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Why not just do it without removing the engine?
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AKGC
Rspecwhite said:
Why not just do it without removing the engine?
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Because you need to get the ladder frame out before you can even touch the con rods. The x member gets in the way.
If you want to do things RIGHT you put the engine on an engine stand.
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mmrp81
Because the labor is an hourly charge, expect them to take their time as well. ;)
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Quartermaster
pull its ass out and do it in your garage like a MAN
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Tufast
Quartermaster said:
pull its ass out and do it in your garage like a MAN
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+1..........:bowdown:
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fatflyguy
+1!
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FortyOzSpartan
500-1900 in labor - pretty big spread!
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Tufast
FortyOzSpartan said:
500-1900 in labor - pretty big spread!
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Yep, that gives you an idea of much a difference the dealer charges compared to a lower end independent.
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flylow
I was charged $500 for something similar once. Had my car back early the next day. Same mechanic charged me $100 to change my clutch, had my car back in 3-4 hours. It was a M-Xrs btw
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Mcmonopoly
davidp said:
how much should that cost ?? i'nm getting a set of forged rods and pistons for my car and i'm wondering how much the install should cost ..
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I would personally call and ask @ Lachute Performance or the Swap Shop. They specialize in Subbies, but installing internals is still pretty standard, so they might be able to give you an good idea of how much it would go for.
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whatnot
Tufast said:
We (dealership) charge $95/hr & to rebuild a motor would normally account for about 20hrs time according to Nicholas Chiltons......so about $1900 in labor at the dealer.
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Yup, I called a shop to get a quote and it is about a 20 hour job, at $60-$90 and hour and you have to get new gaskets and seals and it adds up to close to $2k. It is the reason I haven't done it yet, the rods and pistons are almost incidentals when it comes to labor and parts lol.

I would like to do it myself, but I am not going to have a brand new engine be the first one I tear apart. I think I might give it to BR at 50-75k miles so when thye charge 4k or whatever to do all of that high speed stuff, it will be worth it, vs. spending 4k for them to "clean" a clean brand new engine.
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Quartermaster
honestly... guys installing rods and pistons isn't THAT hard... R&Ring the motor will be more difficult.
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genjuice
It is not a good idea just to drop in pistons without machining the cylinders to fit your new forged pistons.
1.The cylinders in the theta are not a true 86 and they are all different sizes.
2.Your new forged pistons have different tolerances then the stock pistons
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Tufast
genjuice said:
It is not a good idea just to drop in pistons without machining the cylinders to fit your new forged pistons.
1.The cylinders in the theta are not a true 86 and they are all different sizes.
2.Your new forged pistons have different tolerances then the stock pistons
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+1.....

Can't really just drop them in unless you are willing to gamble. I was going to tear my own motor down on engine stand, then send block & head along with forged internals etc to local machine shop I always use that does a real good job. But since all of my other engine builds were just R&R OEM parts for DD use & this car will eventually be a track monster, I've decided to let a professional race shop do my engine & head work since I will be beating on this car for years on the track after it is built. ;)
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davidp
i forgot to say that i can pull the motor out .. it's just that i don't have all the tools needed to change the internals ..
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Mcmonopoly
davidp said:
i forgot to say that i can pull the motor out .. it's just that i don't have all the tools needed to change the internals ..
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But even then like others mentioned I would have the cylinders honed/checked before dropping new pistons in there...

I remember MSUgoeman mentioning that the cylinder walls had been scored quite a bit from his 7ism kit, but wasn't exactly clear has to how bad it was....But he had to have the cylinders honed/bored out to remove all the scoring/marks.

Now having said that, the other problem you will see is that if you have the means to hone the cylinder yourself, BR mentioned that the block need to be braced very well to prevent it from warping...Also I read up on cylinder/honing techniques because I wondered why BR stated that they heated and honed the block while it's @ operating temps (IE 180*F) to make sure the tolerances were correct under operating temps....

So again, like Whatnot stated, I would go for a fully built long block instead of trying to do just the drop myself, since all in all it'll be the same price if you include the piston/rod price/labor, since @ 3.7K BR's longblock includes all those...
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