What size piston rings do i need?
Thread Starter
Staging Lane
Joined: Nov 2011
Posts: 85
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What size piston rings do i need? I am rebuilding my motor and am looking up orices and parts. I am getting the block honed. Do i need different size rings or stock rings? Also what are the stock ring size? And what do i need to do to break them in.
Thanks
Thanks
Thread Starter
Staging Lane
Joined: Nov 2011
Posts: 85
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Correct the machine shop should take care of you, especially if they are assembling your motor.
If their honing your stock 3.898 bore for instance to 3.905 then you would need a 3.901 sized piston for it to have a .004 piston to wall clearance for a NA motor...
So it all comes to how much they are taking out of your cylinders. Call them and ask 21 questions lol
If their honing your stock 3.898 bore for instance to 3.905 then you would need a 3.901 sized piston for it to have a .004 piston to wall clearance for a NA motor...
So it all comes to how much they are taking out of your cylinders. Call them and ask 21 questions lol
Honing is like a mini bore job, you have to check piston to wall gap. Decide what piston you want, find out the clearance the piston needs (2618 typical forged piston) likes .004 for NA motor, .005-.006 for FI
Are you using stock pistons? You can't hone out your block too much or else you need bigger pistons
Are you using stock pistons? You can't hone out your block too much or else you need bigger pistons
Thread Starter
Staging Lane
Joined: Nov 2011
Posts: 85
Likes: 0
Honing is like a mini bore job, you have to check piston to wall gap. Decide what piston you want, find out the clearance the piston needs (2618 typical forged piston) likes .004 for NA motor, .005-.006 for FI
Are you using stock pistons? You can't hone out your block too much or else you need bigger pistons
Are you using stock pistons? You can't hone out your block too much or else you need bigger pistons
I see, you are doing a redneck/ghetto hone. I don't recommend it, but if you insist, do a light hone and get new standard rings. They may or may not seal. I'm assuming Dad is used to working on old school iron blocks?
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Staging Lane
Joined: Nov 2011
Posts: 85
Likes: 0
He says he just wanted to ball hone it and be done.
How do the walls look? If your not expecting great results and this is just a daily driver then you can do a quick ball hone but not much and get new rings...
I guess it comes down to your budget, just a heads up for next time you build your engine.
goodluck
I guess it comes down to your budget, just a heads up for next time you build your engine.
goodluck
Cylinders sometimes wear sort of egg shaped. A do-it-yourself hone is not always going to fix it. Really, a reputable machine shop should at least check it to see what you're up against. If this is for an old beater or farm truck, hone away. But, if this is for a performance engine, I'd highly recommend spending the extra coin and doing it right. You want those rings to seat and make a good seal.
