snylften

Hello

I wonder what engine i have. I found this number on the head.
409 147 /146
And on the engineblock this number.
395558 and a big 2

64Rocket

Looks like a 350 OLDS block.
What number or letter is on the head by the #1 spark plug hole?
Gene

snylften

It is a big 7. I know it is a olds 350. But what yearmodel? horsepower etc? What does the numbers say?

svnt442

They don't really decode like that. The heads are 71 units but to confirm the year of the block you'll have to look at the machined pad below #1 spark plug and tell us what is stamped there.

snylften

ok, ill do that tomorrow and come back to you. Thanks for now.

jensenracing77

is it a big 7 with a little a after it or just a big 7

sometime the little a is hard to see if it is covered with grease. if it is 7 it is 71 if it is 7a it is 72. this is for the heads not the block.

snylften

i think it is just a 7. How many horsepower could it be?

snylften

Hello again.

The number by the #1 sparkplug is a 7 and a the letter A.
Then i found the letter A and number 5 also on the head. You can se it in the youtubeclip. Just klick on the link

http://www.youtube.com/watch?v=cxAYQPPDL-g

svnt442

The little 5 doesn't mean anything important.
The 7A indicates 1972 heads.
You still need to look at the machined pad on the other side of the engine under where the other head is marked.

snylften

Now i have looked on the heads under the "headcovers".
The didgets are on head #1 CDF 409 147 / 146

The didgets are on head #2 CDF 409 147 -139

I dont know if the / and - are slash and minus marks or if its the heads of a screw?

I did another filmclip of the heads.
http://www.youtube.com/watch?v=wZ-XenXLHPY

And then i found another numer on the engine. Se picture.
http://gallery.me.com/stefan.rodin/1...12735008730001

Looks like
a big 6
then number 67 under it. And then CDF under.

svnt442

OK you are missing what I'm saying. On the drivers side find the 7A on the head and then look on the block for a flat machined pad. There will be some numbers stamped, not cast, there. Get a good pic of those and we can tell you what year the engine is.
Right now the best guess would be 1972 because that's what the heads indicate.

snylften

I dont know what you mean by "machined pad"? And also "not cast"?

But i have now removed the whole cylinderhead. Maybe we can found something there. Watch the clip. http://www.youtube.com/watch?v=GDvABq9kLUw

svnt442

Look for a flat pad about 2" long on the block just below where the head would sit that had some numbers stamped on it, not cast.