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panic
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« Reply #15 on: August 04, 2009, 12:37:37 PM » |
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I love this stuff!
Assuming that the width across the valves is the actual bore size, yes?
Just a few ideas, none necessarily useful:
1. if you have enough head deck thickness (hate to cut up a vintage race piece, but... that's what it was made for), or block deck thickness a big angle mill cut acrossto make a wedge and give some intake valve axis tilt into the bore. Obviously, spot face the bolt seats, re-drill the holes slightly for clearance etc.
2. more width on the siamese intakes
3. more intake height for some downdraft
4. close up the chamber opposite the plug. Easiest shape to plan is a heart (red area), also gives quench with a flat piston
5. if that exhaust notch is really needed, also relieve the cylinder wall
6. more rocker ratio
What did you have in mind for carbs?
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RichFox
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« Reply #16 on: August 04, 2009, 01:48:36 PM » |
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Being it's not my head, it's on loan. I don't get to cut it up. So it runs like it is. Still fun. Intake will be my favorite deal. Ford throttle bodies fuel injection. Same as the Plymouth.
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RichFox
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« Reply #17 on: September 11, 2009, 08:10:04 AM » |
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Some pictures of the rocker assembly I am mocking up for the missing M&B rockers
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RichFox
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« Reply #18 on: September 11, 2009, 08:11:15 AM » |
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And the block
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Milwaukee Midget
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Location: Beerhaven, Wisconsin
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« Reply #19 on: September 11, 2009, 05:59:20 PM » |
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Those valves look huge for a 3 7/8 bore - 1.90 Ford valves?
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RichFox
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« Reply #20 on: September 11, 2009, 08:46:04 PM » |
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That's the way the head was made in the twenties. Morton & Brett built Indy cars back then. This was a serious race piece at the time.
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mtkawboy
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« Reply #21 on: September 11, 2009, 09:10:57 PM » |
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Think it will be ready for next year Rich ? Cant wait to see it run.
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RichFox
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« Reply #22 on: September 11, 2009, 10:16:45 PM » |
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That's more or less the plan. Might be in a different car.
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Rex Schimmer
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Age: 69
Location: Fulton, CA
Posts: 1257
Only time and money prevent completion!
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« Reply #23 on: September 12, 2009, 02:39:03 PM » |
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Rich,
You really come up with some cool stuff!! A Packard V8 and now an old Dodge banger!
Looking at the pictures, when it was a flat head did it have 4 exhaust ports and a single intake on the other side? Also was the block converted to 5 mains or was it that way originally?
Rex
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Rex
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RichFox
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« Reply #24 on: September 12, 2009, 03:07:41 PM » |
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Yes on the ports. The Dodge Bros. street roadster that has run very well at Bonneville for the last two years is a "Fast Four" which has the more conventional two intake four exhaust, togeather on the same side as did my Plymouth and the many Fords that run on the salt.. Mine has five mains from the factory. Earlier engines had only 3. There is no pressure oil to the crank. Oil is sprayed from a spray bar to the main bearing webs and allowed to run down to small troughs from which it drips onto the bearing. Rods are splash. Earlier engines had a 12 volt starter/genorator which was geared to the crank and was very large. I am told that people converted them for use as portable gas powered ark welders.
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mtkawboy
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« Reply #25 on: September 13, 2009, 11:18:42 AM » |
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Back in the 60's Model A motors made great air compressors, I used to build them for tire companies for the service trucks. They run on 2 and pump air on 2 cyls. They really put out a bunch of air with a special head
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RichFox
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« Reply #26 on: September 13, 2009, 12:28:43 PM » |
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The Morton & Brett is a special head. But I don't think I would use it as an air compressor. If I did it would probably pump up a tire faster than a Model A.
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jdincau
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Posts: 384
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« Reply #27 on: July 04, 2010, 10:36:20 PM » |
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Rich,
How is this project coming along?
Jim in Palmdale
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"We can never select the one result we want to the exclusion of all others"
David Pye
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Milwaukee Midget
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« Reply #28 on: July 05, 2010, 01:48:28 AM » |
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Rich,
How is this project coming along?
Jim in Palmdale
More than one of us is curious! |
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RichFox
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« Reply #29 on: July 05, 2010, 01:49:31 AM » |
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Very slowly. I set the crank in it yesterday and was going to install the pistons when I realized the rod bearings I had were .010 under and the crank is standard. Drilled the blowshield for the Dodge bolt pattern. Got the cam and lifters back. Should get the head back this week. So I am running out of excuses. Last week I bought a .26 Chevy with a .25 Olds head, Jahns pistons, Nash rockers, welded on counterweights. All the good stuff on a 40s Sprint car motor. It was on EBay and went for $1200. I couldn't pass it up. It should get here Tuesday.
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