oldsmobile 350
#2
Senior Member
DYNO OPERATOR
Join Date: Apr 2008
Posts: 504
Bonesmobile
The engine can be valuable to an Oldsmobile restorer if it is a vintage year. That is a relative term, I know, but if the engine has #5 or #6 heads it is likely early 70's. The heads are one way to date the engine, color is the other if again, if is original, Bronze is a good indicator. One caution is that every olds small block can have any olds cylinder head bolted to it if someone changed them for what ever reason. If it runs well and you don't care to use it, then 700 bucks might be a reasonable sale price if you don't want that awesome Olds torque :lol:
If you give me more info regarding color of the block and the large # off the head near the the ends facing up, that is where the #'s are. They will be like 7A or 6 and so on. The lower the # the older the head generally.
I know that you are on E bay looking at an ad, but if you saw the casting # on the heads between the center head bolts below the valve cover the best #'s are 147 or 742 made between 68 - 70 and the best stock W31 pieces are # 405585.
Bruce
If you give me more info regarding color of the block and the large # off the head near the the ends facing up, that is where the #'s are. They will be like 7A or 6 and so on. The lower the # the older the head generally.
I know that you are on E bay looking at an ad, but if you saw the casting # on the heads between the center head bolts below the valve cover the best #'s are 147 or 742 made between 68 - 70 and the best stock W31 pieces are # 405585.
Bruce
#3
Senior Member
RACING JUNKIE
Thread Starter
Join Date: Sep 2007
Location: orland pk il
Posts: 2,399
thanks for the great info, IM going to e-mail the seller and see if i can get some # off of it. but even if he doesn't get back to me at least I know what Im looking at. thanks , mike
#4
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Join Date: Nov 2005
Location: Staunton, IL
Posts: 943
If I remember corectly. Sometime in the mid to late '70s olds produce a "Windowed main" block. It was made with less material and you can't put alot of horses to it. The name Mondello has been synonmous with olds performance for years. You could ask them. http://www.mondellotwister.com/
#5
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Join Date: Apr 2008
Posts: 504
and one more thing
Originally Posted by slowmotion
If I remember corectly. Sometime in the mid to late '70s olds produce a "Windowed main" block. It was made with less material and you can't put alot of horses to it. The name Mondello has been synonmous with olds performance for years. You could ask them. http://www.mondellotwister.com/
Bruce
#7
Senior Member
RACING JUNKIE
Thread Starter
Join Date: Sep 2007
Location: orland pk il
Posts: 2,399
IN HIS LISTING HE SAYS HIS BUILDER SAID IT IS A HIGH NICKLE COUNT BLOCK,i DONT KNOW HOW HE WOULD KNOW THIS, i WOULD ASSUME THAT IF IT IS A STOCK BLOCK IT WOULD BE THE SAME AS ANY OTHER STOCK GM BLOCK OF THAT VINTAGE. HE SAID THE ENGINE CAME OUT OF 70 OR 71 442
#8
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Join Date: Nov 2009
Posts: 267
I don't know anything about Olds engines, but SBC block numbers and casting codes can tell you if it has a high nickel block.
An 010 or 020 cast number under the timing cover with tell you it has high nickel content. Also the last three digits 010 at the end of a rear block number tells you the same.
Get the block casting numbers and Google it up to see if any other racers out there have the block code number references for you to check... that is if he doesn't lie to you and give the numbers he wants you to believe they are...?
An 010 or 020 cast number under the timing cover with tell you it has high nickel content. Also the last three digits 010 at the end of a rear block number tells you the same.
Get the block casting numbers and Google it up to see if any other racers out there have the block code number references for you to check... that is if he doesn't lie to you and give the numbers he wants you to believe they are...?