You can type here any text you want

4.1 25520044

Welcome!

By registering with us, you'll be able to discuss, share and private message with other members of our community.

SignUp Now!

dank GN

BlackArts Automotive (661)993-8277
Joined
Jan 11, 2009
Messages
4,039
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
IMG_0234.JPG
 

Attachments

  • IMG_4005.JPG
    IMG_4005.JPG
    240.8 KB · Views: 171
  • IMG_4006.JPG
    IMG_4006.JPG
    264.1 KB · Views: 170
  • IMG_4004.JPG
    IMG_4004.JPG
    222.5 KB · Views: 181
  • IMG_0233.JPG
    IMG_0233.JPG
    1.5 MB · Views: 152
  • IMG_0235.JPG
    IMG_0235.JPG
    1.8 MB · Views: 159
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.
 
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
IMG_0258.JPG
IMG_0259.JPG
 
Well I pulled a main cap and a rod cap . The crank is in great condition and is a turbo crank .
IMG_0294.JPG
 

Attachments

  • IMG_0269.JPG
    IMG_0269.JPG
    627.8 KB · Views: 85
Update I just got the intake manifold off and the valley looks pretty beefie if u ask me . Here is acouple pics
IMG_0353.JPG
IMG_0354.JPG
 
Does someone have a picture of a 291 blocks valley area ? Is it similar ?
 
Okay got the heads off and the deck looks good . It does have a extra port slot .
IMG_0355.JPG
IMG_0356.JPG
 
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
IMG_0357.JPG
IMG_0358.JPG
IMG_0360.JPG
 
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.
 
291 block. Put on facebook but this is more archival worthy :)
36b017d032bea4f48041ac0303adf7f6.jpg
c891df224b47339ca8c67320b35267dd.jpg
79972c328b2b6a9588d7f52b5d002f47.jpg


Sent from my VS990 using Tapatalk
 
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.
 
Okay I just cleaned up all the casting slag in the valley and chamferd the head bolt holes
IMG_0447.JPG
IMG_0448.JPG
 
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.
 
Back
Top