Thread: Oh no not another Willys Gasser build, this time a Willys shop truck

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Started making the blower snout shaft last night, used the EN40 offcut from the crank hub, drilled the mounting holes, next I need to make the drive shaft which will be welded and pinned to the hub you see here.







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Very nice, and those ARP fasteners finish it off. Do you buy those by the bag? I notice you use them a lot.

Originally Posted by 40FordDeluxe

Very nice, and those ARP fasteners finish it off. Do you buy those by the bag? I notice you use them a lot.

I'm a dealer for ARP Ryan so have them on the shelf, the best bolts around in my opinion, I only used the stainless as I didn't have any regular type, they will get changed.

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Came to a full stop on the snout shaft as run out of 1" bar so turned my attention to sorting the intake out, I'm gonna have to use the Fenton 3 x 2 as can't find an aluminium intake to mill out, Only one person making one and its big money, there is one guy making blower intakes for the Y block but at $1000 he can keep them !!!
The problem I have is the carb throats on the Fenton are too far apart for the bottom outlet of a 4/71, a 6/71 would of been spot on but way to big for the look I want. Anyways decided to stick with what I have, shame really as the Fenton seems to be fairly rare.
My cunning plan is to fabricate a curved ended box to act as a plenum which simply bolts to the existing intake and the blower bolts straight to this.

First job was to make a 3/8" plate for the base and transfer all the various holes, the original carb mounting holes will be drilled out to 3/8" as because of the top having the normal 5 degree inclination the holes will be slightly tilted once I flycut the top surface true to the crank centreline, the pics hopefully will explain.










Here I have made a mockup in cardboard.










Getting to the rear 2 and the front 1 mounting bolt will be tricky but doable








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Cereal boxes are good for lots of things!

Thats nice machine work !

Very Nice, This is filling in the puzzle I have always wanted to know, I have a book on overhauling a blower for street use but it stops shy of the blower drive, never been real crazy about thinking I was going to have to tear into my working 6/71 on my '32 just to see what it would take to machine a drive. I have a front cover already and a 392 laying around....Nice work and thanks for the info & great pics! Matthyj

Wonderful cad work

Cardboard aided design

Originally Posted by firebird77clone

Wonderful cad work

Cardboard aided design

Pmsl !!!

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Got the blower case back from the blasters so set about doing some modifications to it, First the support bar in the intake side was removed, its not needed now its not hanging on its side anymore, once out the edges were milled to clean it all up.










Heres a pic of a stock scavenge pump setup incase you have not seen one.








My small mill doesnt have enough throw to flycut the intake angle out so popped into my mate Brians shop and used his. While I was there the intake throats were bored out from 1.250" to 1.500", the bottom plate of the plenum was bolted in place and both bored together to keep the throats aligned.












Correcting the intake angle meant losing the rear stud hole, we spotted it through first and retapped, Will weld a bung in here at some point.
The dividers in the throats will be ground to a knife edge so as not to disturb the flow.








The bracket bosses cast into the intake no longer serve a purpose so cut them off and blended them smooth, this uncoved a hole so it got welded shut,












Here the plenum sides are tacked in place, the tricky to get at bolts are now much easier to get at as they go through columns.
Couldn't do any finish welding as my 200amp isn't gonna be big enough as the aluminium is 1/2" thick, gonna need a fair bit of preheat on it.






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Looking good. Just becareful, the critics claim those intakes don't work well................. Mine worked fine though. You are doing awesome work on it!

.sorry double posting

More progress, I tacked the plenum together ready for final welding but due to it being 1/2" plate my 200amp machine was not gonna do the job without a lot of preheat so it was off to see Mr Miller Dynasty Got it all welded together late in the evening eventually, then had to drink numerous cups of tea while it cooled down Thanks Gary












One of the mounting lugs on the intake had been damaged at some point so this was built up with weld and reshaped.








The bottom plate thats bolts to the inlet bowed by about 20 thou over the length so it got a small fly cut on the mill. If you have never seen flycutting i've added a short video below.





https://www.youtube.com/watch?v=ZWbo84vSLv4




I mocked it up to have a look and discovered the front plate is a little shy in 2 corners so will have to make up a couple of bits and welded them in.










Next up was the snout drive shaft, its 1.250" steel bar turned done to be welded in to the hub at the blower end, the other end I have to broach a keyway into, made up the pulley flange. the shaft has been left long at the moment so I have something to hold on, I will shorten once its all mocked up on the motor.












I was a little concerned about the mounting bolts on the intake not being very far apart, probably be fine but just to be sure I added a pair of braces, they have to be welded to the intake yet, they bolt to the 1/2" blower plate with 2 x 1/4" bolts.












Here it is mocked up in place ready to measure for the snout length.





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Wow you're sporting some awesome aluminium work there, this should be a fast beast when your done!

Originally Posted by stovens

Wow you're sporting some awesome aluminium work there, this should be a fast beast when your done!

Cheers Steve