4.1 25520044

[dank GN]

okay so I finally went and picked up this 4.1 block . It has the mysterious 044 casting number . From what research I've done they are supposed to be just as strong as the 291 blocks . I will be taking pictures when I tear her down so we can have Alil more info on this casting number

 

[Ttype6]

Hold your phone sideways.

 

[czimpel]

I have an 044 and a 291. The 044 block appears to be much beefier in the deck area and pan rails than the 291. From what I have found it was a Cadillac used motor, but mine was from an 84 regal.

 

[dank GN]

So I almost have her striped down . She has a good set of 8445 heads . I haven't pulled the pan yet to see f she has a good turbo crank yet . Here is acouple pics of where I'm at

 

[Ken Adams]

Subscribed

 

[dank GN]

Well I pulled a main cap and a rod cap . The crank is in great condition and is a turbo crank .

 

[dank GN]

Update I just got the intake manifold off and the valley looks pretty beefie if u ask me . Here is acouple pics

 

[dank GN]

Does someone have a picture of a 291 blocks valley area ? Is it similar ?

 

[dank GN]

Okay got the heads off and the deck looks good . It does have a extra port slot .

 

[dank GN]

When I picked up the block I was told
It was making some bad noises . I think I found what those noises where coming from . I think that valve is missing Alil bit off it

 

[dank GN]

Pan rail pictures

 

[Ttype6]

Does someone have a picture of a 291 blocks valley area ? Is it similar ?

It's exactly the same. The 109 is much more beefy in this area.

 

[ek02]

The valley area is about the same on all early NA blocks. The 484 and 044 blocks have more material in the front cover area than the 291 blocks I have seen, or it may be an early and late block difference.

 

[achalmersman]

291 block. Put on facebook but this is more archival worthy

Sent from my VS990 using Tapatalk

 

[No disintegrations]

I never saw a chip missing from a valve like that.

 

[czimpel]

Look at the pan rail different between the 044 and 291. I'm not sure if it helps at all in strength, but it is very noticeable in the pics.

 

[dank GN]

Some better pictures with it clean up

 

[dank GN]

Okay I just cleaned up all the casting slag in the valley and chamferd the head bolt holes

 

[earlbrown]

Drill a couple steam holes per bank between the cylinder pairs on the lower side. A head gasket makes a perfect template.

Air can't burp out of that area like it can on a 3.8.

 

[Buick Mark]

It's exactly the same. The 109 is much more beefy in this area.

Yes it is, the 109 block is near solid in the valley area with a few holes for drain back of oil