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Author Topic:   Used Piston Rings
posted May 12, 2004 08:16 AM
Looking at just putting new bearings & cam in a low mile 305 for a Purestock.

Is using the old piston rings a bad idea?

none of them are stuck to the pistons & the block is freshly honed.....

this would be a cheap backup engine just incase something happens to my main engine.

let me know what you think.

posted May 12, 2004 09:39 AM
'Never time or money to do it right, but always time and money to do it again.'

That was one of our favorite sayings at the engine shop. For the cost of cheap iron replacement rings (like $25) it's not worth the chance of them not sealing. I've heard of some people reusing rings on an unhoned block with all the pistons in the same hole. But, the 2 times I've seen this done (never done it myself) the engine had oil consumption issues.

posted May 12, 2004 09:54 AM
I was wondering if it would seal Or if it would be an oil burner.

this engine is from a '96 chevy truck & they told me the rings are "metric" size & are over $100.00 for the set. YOW !

thats why I was wondering if I could just reuse the old ones.

Ego Racing
posted May 12, 2004 11:07 AM
What pistons are in the motor?

posted May 12, 2004 11:10 AM
your right...the 96 and up 350s and 305 use the 1.5 1.5 3mm ring pack....low drag but not cheap!

i'd leave the olds ones in.



posted May 12, 2004 11:10 AM
The stock GM ones.

this is a 1996 Vortec 305 out of a low mile pickup that was wrecked.

That price was from our local parts store, Not the GM dealership.

posted May 12, 2004 11:48 AM
$100 seems a little too much of a markup for those rings.
We can get a set of file fit moly rings with the 1.5,1.5,3mm size for about $70....

But still, spending $70 or $100 to allow a motor to live is money well spent, IMO...


posted May 12, 2004 07:49 PM
sell the heads and buy a 350

Ego Racing
posted May 12, 2004 08:32 PM
Midwest Motorsports: CHEV All All Piston Ring Set Performance 305 cid + .030+ .040+ .060 Standard FMP E356X 32.99 Set.
I would call them to verify the year but it says All years All Models.

posted May 12, 2004 10:02 PM
thanks for all the responces on this!

Hey Ego, does Midwest Motorsports have a website?

I would be happy to thow new rings in it But I feel cheated at $100.00 + for them.

I will check around but I don't think I will ever get them at the price rhe normal rings sell for.....

anyone else try used rings in a honed block?

posted May 12, 2004 10:26 PM
please remember this is Not my main engine, I just want to have something to use in a pinch since we run on Sat & Sunday & if it breaks Saturday I want to be ready.

My main motor has all new parts.

I know its bad to use old lifters on a new cam but I never hear about anybody reusing old rings....prolly since most stock rings are cheap. LOL

[This message has been edited by ruggs66 (edited May 12, 2004).]

Ego Racing
posted May 13, 2004 05:59 AM

posted May 13, 2004 06:17 AM
why not use a set of used pistons from an older type 305,some of the older type even used flattop pistons.Then you could use the standard ring set and it will hold a ring seal longer.

posted May 13, 2004 09:19 PM
Thats a good idea Rico!

our class doesnt allow flattops but the '95 & older 305s should have the other style pistons for the cheap rings.

maybe I should be the gunnea pig & try the used rings & give a report on how it turns out.

posted May 14, 2004 03:58 PM
I have run a lot of old engines by putting in only new bearings.I have not had any trouble.

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