Was there ever a kit with a GMC inline-6 and Wayne 12-port head?

[LDO]

Just curious. I think it’s a really cool part of hot rod history. 

[Ace-Garageguy]

The Galaxie '46 Chevy kits, at least two of 'em, have some Wayne speed equipment and decals...probably the sedan delivery has the decals.

EDIT 2: The "Wayne" was for Wayne Horning, so Horning heads are closely related, and the Fisher is an offshoot of the Wayne/Horning tooling.

There are two different trick heads in the AMT '51 Chevy kits, and I used to know which was what, but I've forgotten.

EDIT: The Fisher 12-port head in the AMT '51 Chevy hardtop is pretty much the same as the Wayne 12-port IIRC.

Here's more...

 

[Mark]

I might be incorrect on this, but I'm pretty sure the Fisher head in the '51 Chevy kit is actually a replica of a GMC setup, and there was no similar style head for Chevy inline sixes.  The Wayne, Fisher, and Horning Chevy heads all look more similar externally to a regular Chevy six head, at least the ones I turned up.

If you test fit the '51 kit parts, it appears the valve cover is cheated a bit on the underside to fit the shorter Chevy block.  AMT probably did that so they wouldn't have to include two complete engines in the kit.  The valve cover is about the right length to fit a 1/24 scale Chevy engine block (Monogram '53 Chevy hardtop, or '53 Corvette) though.  Some work will be needed on the 1/24 scale Chevy block and oil pan to make them more closely resemble GMC pieces.

[Mark]

That said, hopefully one or more of the 3D print guys will get going on a GMC straight six.  The V6 has been done, as has the V12 version of that, so why not the inline six?

[Ace-Garageguy]

1 hour ago, Mark said:

That said, hopefully one or more of the 3D print guys will get going on a GMC straight six.  The V6 has been done, as has the V12 version of that, so why not the inline six?

The GMC six is pretty much just a slightly larger version of the Chevy 6 (though nothing interchanges but the distributor), somewhere around 2 inches longer (roughly 2 mm in scale), and a 1/24 Chevy 6 should pretty much get you there in 1/25 if you want something that's visually a little bigger.

Swapping inline GMCs into Chevys was fairly popular for performance, especially pre'53 cars, when the Chevy still lacked pressure oiling.

Sure there are minor differences, like the timing cover, front mounts, etc., but you'd need to be a real engine nerd like me to notice...or care (which I probably wouldn't in 1/25 scale).

But most car modelers today really don't go into the esoterica of engines anyway, or particularly sweat mechanical details (just my opinion...yours may differ).

EDIT: Yes, it would be nice to have accurate models of both the Chevy and GMC inline sixes of the period, and all the trick heads too.

But I'm not holding my breath.  

EDIT 2: Though most of the inline-6 Chevy/GMC websites seem to be gone, there's still detailed esoterica out there...   

https://inlinersinternational.org/the-12-port-story-part-1/

https://www.inliners.org/12_Port_Story/pt_nine.html

    

Edited September 7, 2024 by Ace-Garageguy
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[Mark]

The GMC straight six could be a decent seller for a 3D printer, especially if it had the GMC script valve cover.