Olds 350 engine, what is it ?

[COPO_Anders]

Hi guys !

I have an engine with the number 395558 2 on the originally goldpainted block. When I google the number I see that it should be a 350 built 1968-70. But when I found the pad with the partial VIN on, it read 34E172286. 3 for Olds, 4 for 1964 or 1974 and E for Linden New Jersey. That #4 doesn´t make sense, so what is wrong here ?
The numbers on the intake reads: Y 411990 B2 BM with 99 (or 66) for date. What do you think, what year is it from ?

[Ryan1969Chevelle]

http://www.442.com/tech/tech.html

http://www.442.com/oldsfaq/ofblk.htm

This will get you started.

HMM.....

Ryan

[COPO_Anders]

Yea, I know it looks terrible painted like that !

Moderators, feel free to move this to the Olds-forum. Did not think of it.

[Canuck]

74, no vin on block pre 68, 64 would be a330. Intake is 73 and up smogger, see EGR boss.

[Ryan1969Chevelle]

The block should be good for any 68-70 SBO project.

What letter and or number is on the heads. (The prominent cast number at the front corner)

68-69 are #5

70 are #6

Then they get lower compression etc.

[COPO_Anders]

Thank´s guys,

The heads got a big #8 on them and casting looks like 411 929. Could they be the original heads for a 1974 engine ?

[COPO_Anders]

From 442.com

8 '73 - '76 350 79 411929 Smog heads. Have huge bb-sized 79cc
chambers yielding poor compression
ratios without extremes of
compensation.

Looks like I will need other heads with smaller combustion chambers to get this thing running good.

[img]<<GRAEMLIN_URL>>/burnout.gif[/img]

[442w30]

For what it's worth, 442.com has a lot of mistakes, although I don't know if this is one of them.

[Ryan1969Chevelle]

Agree 442.com is not 100%.

Small block Olds castings/cores are low cost, so #5 heads would be easiest (books say 64cc's, actual 68-70cc's) and generally only cost a couple hundred bucks.... then upgrade to W31 valves:-)

Ryan

[COPO_Anders]

Thank´s for the advise guys. [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img]