1968 98 engine options - ClassicOldsmobile.com


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Old July 13th, 2018, 01:03 PM   #1  
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1968 98 engine options

Hey guys what's the verdict with the 68 98's. Did they all have 455 or did some have the 425??

this one is a convertible I'm looking at if that matters.

Ronnie.
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Old July 13th, 2018, 02:26 PM   #2  
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The 455 replaced the 425 for the '68 model year. There was no model year in which both were offered. The 425 was the largest engine from 1965 through 1967, with 455 the largest from '68 through '76. If the 98 you're looking at has it's original engine, it can only be a 455.

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Old July 13th, 2018, 02:50 PM   #3  
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The 425 replaced the 455 for the '68 model year. There was no model year in which both were offered. The 425 was the largest engine from 1965 through 1967, with 455 the largest from '68 through '76. If the 98 you're looking at has it's original engine, it can only be a 455.
<br />Thanks I've always wanted a 425 and now this car popped up so I went online and saw a guy on the hamb talking about a 68 with a 425 so I had to run it through you guys... cant believe everything online,, funny because Joe P was on that very thread schooling people who there who were giving wrong info.<br /><br />oh well this 98 still looks appealing, ever since I got rid of the 63 f85 convert I told my self next convertible I get has to be a big car with a body on frame.<br /><br />Might pick this up. <br />I. Suppose that 1968 was a good year for the 455 right?<br />

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Old July 13th, 2018, 03:12 PM   #4  
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The 425 replaced the 455 for the '68 model year. There was no model year in which both were offered. The 425 was the largest engine from 1965 through 1967, with 455 the largest from '68 through '76. If the 98 you're looking at has it's original engine, it can only be a 455.
i'm sure you mean the 425 was replaced by the 455 in 68,there is nothing wrong with a 425 tho,they are a great engine
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Old July 13th, 2018, 03:40 PM   #5  
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i'm sure you mean the 425 was replaced by the 455 in 68
I fixed my comment! Thanks.
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Old July 13th, 2018, 03:43 PM   #6  
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I. Suppose that 1968 was a good year for the 455 right?
I don't think there were any "bad" years for the 455. They were all good years. The latter year (mid-'70s) versions tend to be less desirable because they were detuned for emissions purposes. The '68 455s were the first ones and therefore probably among the more desirable.


I'm wondering what the big deal on this is, anyway. The car you're looking it is a luxury-barge land yacht. It will float down the road like a living room on wheels. It's a big, heavy car. It has the big engine for a reason. It's not a performance car. As long as the engine is in good tune and running well, be happy and enjoy the car. That's all anyone who purchased one back in 1968 did.

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Old July 13th, 2018, 04:28 PM   #7  
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I don't think there were any "bad" years for the 455. They were all good years. The latter year (mid-'70s) versions tend to be less desirable because they were detuned for emissions purposes. The '68 455s were the first ones and therefore probably among the more desirable.


I'm wondering what the big deal on this is, anyway. The car you're looking it is a luxury-barge land yacht. It will float down the road like a living room on wheels. It's a big, heavy car. It has the big engine for a reason. It's not a performance car. As long as the engine is in good tune and running well, be happy and enjoy the car. That's all anyone who purchased one back in 1968 did.
no big deal I want exactly what you described. Just asking those who owned one.
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Old July 13th, 2018, 05:05 PM   #8  
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Hey guys what's the verdict with the 68 98's. Did they all have 455 or did some have the 425??

From the 1968 SPECS booklet. Only ONE engine was factory installed in the 1968 Ninety Eights - the L31 365 HP version of the 455.


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Old July 13th, 2018, 05:26 PM   #9  
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It will float down the road like a living room on wheels.
I love this description.
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Old July 13th, 2018, 05:45 PM   #10  
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Funny description huh but I get it
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Old July 13th, 2018, 05:47 PM   #11  
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From the 1968 SPECS booklet. Only ONE engine was factory installed in the 1968 Ninety Eights - the L31 365 HP version of the 455.


thanks Joe.
do you or anyone know where or how hard it's is to get a front windshield for this car..

and are they all the same windshield as in the 4 door, coupe and convertible?.
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Old July 13th, 2018, 10:37 PM   #12  
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I could not find any windshields on ebay
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Old July 14th, 2018, 04:03 AM   #13  
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have you tried your local glass company?i dont think a glass company will have any trouble coming up with a windshield for that car
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Old July 14th, 2018, 09:06 AM   #14  
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have you tried your local glass company?i
I second this suggestion. Try Safelilte or a local auto glass company. They may say no, but you'd be surprised what these companies can still come up with. I checked the Safelite website just now, and, while I didn't go all the way through the selection process because I don't actually have a car that needs glass, they do go back to 1968 when selecting the year, make, etc. of your car. Can't hurt to check.
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Old July 14th, 2018, 01:19 PM   #15  
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I second this suggestion. Try Safelilte or a local auto glass company. They may say no, but you'd be surprised what these companies can still come up with. I checked the Safelite website just now, and, while I didn't go all the way through the selection process because I don't actually have a car that needs glass, they do go back to 1968 when selecting the year, make, etc. of your car. Can't hurt to check.
Thanks for the great idea
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Old July 14th, 2018, 01:19 PM   #16  
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have you tried your local glass company?i dont think a glass company will have any trouble coming up with a windshield for that car
thanks for the great idea JC
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Old August 18th, 2018, 05:02 PM   #17  
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How about bumpers for the 98. Any interchanges with other gm cars.
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Old August 18th, 2018, 05:40 PM   #18  
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How about bumpers for the 98. Any interchanges with other gm cars.
1968 Ninety Eight and Delta 88 only. In the 1960s GM did not share sheet metal across divisions and years the way they did in the 80s when they stopped trying.
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Old August 18th, 2018, 11:37 PM   #19  
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1968 Ninety Eight and Delta 88 only. In the 1960s GM did not share sheet metal across divisions and years the way they did in the 80s when they stopped trying.
When they stop trying lol, thanks Joe. This guy i was talking on the phone with said he used the 68 nighty eights bumpers on a cadillac and i couldn't wrap my mind around it.
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Old August 19th, 2018, 07:04 AM   #20  
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This guy i was talking on the phone with said he used the 68 nighty eights bumpers on a cadillac and i couldn't wrap my mind around it.
Find out what he's smoking...



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Old August 19th, 2018, 06:44 PM   #21  
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Find out what he's smoking...


yeah lol. Defintaly not a match. That's a sharp 98.
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Old August 20th, 2018, 04:55 PM   #22  
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Hi Kenneth: We called my 1984 98 Regency 4 door our "couch on wheels". My wife rode in the middle of the back seat with a kid on either side. That was a nice car and miss it. Regards, Trent in Los Angeles
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