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rings ! by Lou6t4gto
Started on: 07-03-2013 03:53 PM
Replies: 13 (296 views)
Last post by: Lou6t4gto on 07-08-2013 05:55 PM
Lou6t4gto
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Report this Post07-03-2013 03:53 PM Click Here to See the Profile for Lou6t4gtoClick Here to Email Lou6t4gtoSend a Private Message to Lou6t4gtoEdit/Delete MessageReply w/QuoteDirect Link to This Post
I'm looking at new std "Rings" for my 3800SC. I keep getting asked what letter is in the VIN #. I Don't know what the vin # was, no longer have the 1997 riviera body. Is the vin code on the block ? I'm still "inching away" at the "Harness".
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trotterlg
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Report this Post07-03-2013 11:22 PM Click Here to See the Profile for trotterlgClick Here to Email trotterlgSend a Private Message to trotterlgEdit/Delete MessageReply w/QuoteDirect Link to This Post
What is likely the question is likely the width of the rings. Looks like you need to know the width of the rings on your pistons, likely top and second 1.5mm and oil ring 3mm, but you need to measure them. Other than that there is not much else except the size to worry about. Larry

Rings

Or:

Other rings differetn thickness:

[This message has been edited by trotterlg (edited 07-03-2013).]

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Lou6t4gto
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Report this Post07-03-2013 11:40 PM Click Here to See the Profile for Lou6t4gtoClick Here to Email Lou6t4gtoSend a Private Message to Lou6t4gtoEdit/Delete MessageReply w/QuoteDirect Link to This Post
I don't know the "Conversion", but : top is .045", second is .058", and oil is .078 - bore 3.8000"
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trotterlg
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Report this Post07-03-2013 11:52 PM Click Here to See the Profile for trotterlgClick Here to Email trotterlgSend a Private Message to trotterlgEdit/Delete MessageReply w/QuoteDirect Link to This Post
So if you do the math it looks like you need the 1.2 1.5 2.0mm rings. If you have the stand bore just get standard rings. Just a bit of advice from an old guy, if you do not have it re-bored, you will likely be much better off with cheaper rings, like cast iron ones, or something less than the high end stuff. Slightly softer rings will seat in a lot better if you have a bore that is less than perfect, (which you have) so don't waste money buying high end rings when you are going to do a re-ring with old pistons and slightly worn bores. Larry
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trotterlg
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Report this Post07-04-2013 12:07 AM Click Here to See the Profile for trotterlgClick Here to Email trotterlgSend a Private Message to trotterlgEdit/Delete MessageReply w/QuoteDirect Link to This Post
Best deal I have found for them, standard size only, looks good to me. Larry

rings
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Lou6t4gto
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Report this Post07-04-2013 02:07 AM Click Here to See the Profile for Lou6t4gtoClick Here to Email Lou6t4gtoSend a Private Message to Lou6t4gtoEdit/Delete MessageReply w/QuoteDirect Link to This Post
That IS the best price I've seen. Thanks
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Lou6t4gto
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Report this Post07-05-2013 03:05 PM Click Here to See the Profile for Lou6t4gtoClick Here to Email Lou6t4gtoSend a Private Message to Lou6t4gtoEdit/Delete MessageReply w/QuoteDirect Link to This Post
That link is for NON SC, but they Do Have the rings for SC at the same price. I ordered a set. Thanks
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trotterlg
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Report this Post07-05-2013 05:05 PM Click Here to See the Profile for trotterlgClick Here to Email trotterlgSend a Private Message to trotterlgEdit/Delete MessageReply w/QuoteDirect Link to This Post
As long as they are 1.2, 1.5 and 2mm set then life is good. Larry
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MulletproofMonk
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Report this Post07-06-2013 10:19 AM Click Here to See the Profile for MulletproofMonkClick Here to visit MulletproofMonk's HomePageSend a Private Message to MulletproofMonkEdit/Delete MessageReply w/QuoteDirect Link to This Post
Forgive me, I only read the title... So here you go...

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Isn't it strange that after a bombing, everyone blames the bomber, his upbringing, his environment, his culture, his mental state but … after a shooting, the problem is the gun?

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Report this Post07-06-2013 03:51 PM Click Here to See the Profile for crashyoungClick Here to Email crashyoungSend a Private Message to crashyoungEdit/Delete MessageReply w/QuoteDirect Link to This Post
Surprised they don't use the block P/N.

[This message has been edited by crashyoung (edited 07-06-2013).]

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trotterlg
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Report this Post07-06-2013 04:11 PM Click Here to See the Profile for trotterlgClick Here to Email trotterlgSend a Private Message to trotterlgEdit/Delete MessageReply w/QuoteDirect Link to This Post
They may use several different piston types in the same block type. Larry
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Lou6t4gto
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Report this Post07-06-2013 07:59 PM Click Here to See the Profile for Lou6t4gtoClick Here to Email Lou6t4gtoSend a Private Message to Lou6t4gtoEdit/Delete MessageReply w/QuoteDirect Link to This Post
they DO. 3800 NA and SC use different pistons and different rings.
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2002z28ssconv
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Report this Post07-07-2013 10:09 AM Click Here to See the Profile for 2002z28ssconvClick Here to visit 2002z28ssconv's HomePageSend a Private Message to 2002z28ssconvEdit/Delete MessageReply w/QuoteDirect Link to This Post
You already have what you need but this reply is for those who may one day use the search feature.

They were probably looking for the 8th (I think the 8th) character of the VIN to tell if it was NA or SC.

3800SC2
6-231 (3.8L), supercharger opt (VIN 1)
6-231 (3.8L), w/o supercharger opt; (VIN K)

3800SC3
(3.8L), supercharger opt (VIN 4)
(3.8L), w/o supercharger opt; (VIN 2)
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Lou6t4gto
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Report this Post07-08-2013 05:55 PM Click Here to See the Profile for Lou6t4gtoClick Here to Email Lou6t4gtoSend a Private Message to Lou6t4gtoEdit/Delete MessageReply w/QuoteDirect Link to This Post
Rings arrived today, haven't gotten to install yet. Real quick shipping !
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