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Posted (edited)

Its great that this has become a pinned thread.

Tho it would be nice to keep it concise without all the banter.

We can all ask questions on another thread and then add any info to this one to keep it tidy.

 

 

 

 

Edited by STYRENE-SURFER
  • Like 1
Posted

The AMT '37 Chevy kits come with a very nice Offenhauser? finned valve cover, dual carb intake and split headers. They definitely look like vintage aftermarket equipment if you are into straight sixes.

Posted (edited)
37 minutes ago, Jantrix said:

The AMT '37 Chevy kits come with a very nice Offenhauser? finned valve cover, dual carb intake and split headers. They definitely look like vintage aftermarket equipment if you are into straight sixes.

090706 0161937 Chev AMT

Edited by afx
Posted

Maybe I should have started with this one from AMT's '25 Tee kits.

 The Latham Axial Flow Blower was kinda different from most blowers modelers were familiar with.

T1252007-vi.jpg

download (1).jpg

Img10.jpg

download.jpg

Posted

The one in the '25 T is a Latham blower,  I believe the one in the '57 Chevy is supposed to be a S.C.oT blower, The one in the '40 Ford may just be generic, I haven't really seen a real one like it.

 

Posted (edited)

1) Blower in first post is a generic "oval case" GMC 6-71. The junkyard cases varied considerably depending on what the blower was originally installed on. Remember...in the early days, these things were salvaged from trucks, mining equipment, military landing craft, etc. Front drives and rear covers varied considerably too. The mounting flange on the oval-case units isn't seen.

2) Yup, the one in the '57 Chebby is supposed to be a S.C.o.T blower, but it's not a very good one. The real unit has a lot more ribs. Replicas and Miniatures makes one that's a real jewel.

3) And yes, the '25 T kit has a Latham Axial Flow unit. These didn't make much boost at low RPM, and were expensive to manufacture.

4) The "doesn't look the same" unit is a bottom-flange style GMC 4-71. This mounting flange is more common than the oval-case style on old race cars, but the internal workings are the same.

EDIT: For reference, the Potvin (and knockoff) crank-driven blower rigs usually...but not always...used the oval-case blower housings...

image.png.e5f7d69b937cfd7f46604c420ca96178.png

EDIT 2: Here's a shot of an oval-case unit mounted like in the first post...

1771959693_blower6-71ovalcase.jpg.d7c5f4fedba30fe87fce21e6bf46a484.jpg

 

Edited by Ace-Garageguy
Posted
20 hours ago, Greg Myers said:

Maybe I should have started with this one from AMT's '25 Tee kits.

 The Latham Axial Flow Blower was kinda different from most blowers modelers were familiar with.

T1252007-vi.jpg

download (1).jpg

 

 

I've often wondered exactly how was this supposed to mate with the intake? From the kit it's just popped down on the manifold where the carbs go, but theres no clear mating surface. 

Posted
47 minutes ago, Jantrix said:

I've often wondered exactly how was this supposed to mate with the intake? From the kit it's just popped down on the manifold where the carbs go, but theres no clear mating surface. 

 

Posted
14 hours ago, Ace-Garageguy said:

The junkyard cases varied considerably depending on what the blower was originally installed on. Remember...in the early days, these things were salvaged from trucks, mining equipment, military landing craft, etc.

 

1938 4I-71.JPG

images (2).jpg

  • Like 1
Posted
2 hours ago, Greg Myers said:

 

Latham 002 (1).jpg

 

 

So, am I seeing this right? An adapter plate over the stock intake?

2 hours ago, Greg Myers said:

amt977.jpg

 

 

If I'm not mistaken, the centifugal superchangers represented here and in the Avanti kit I think, are McColloughs where the Fords used the Paxtons

  • Like 1
  • 2 weeks later...

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