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01-13-2011, 01:58 PM | #1 |
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5 Main bearing Model A block
Here is a picture of the junk block that I put 5 mains in for the cam and crank.
This is to go with the head that I made last summer. |
01-13-2011, 02:06 PM | #2 |
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Re: 5 Main bearing Model A block
Looking good! Did you make your main webs, --or are these some that Dan Price made up a few years ago?
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01-13-2011, 02:07 PM | #3 |
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Re: 5 Main bearing Model A block
so why is it junk
or... is this just a proto type so you can figure out what you will need to do to a good block to make it work without messing up a good block what kind of steel are you using for the inserts (extra mains) tk
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anyone need some Model A restoration work done in Illinois? shoot me an email for pics and information [email protected] |
01-13-2011, 02:08 PM | #4 |
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Re: 5 Main bearing Model A block
also what crank are you using
tk
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anyone need some Model A restoration work done in Illinois? shoot me an email for pics and information [email protected] |
01-13-2011, 02:09 PM | #5 |
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Re: 5 Main bearing Model A block
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01-13-2011, 02:22 PM | #6 |
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Re: 5 Main bearing Model A block
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Your taxing my head, Chevy ll crank, Chevy rear main. Built those for midgets back in the 70's. Have a friend doing an A for land speed, 5 main AL girdle , one piece, custom crank. Send more photos! Dudley UH...I take that back, it's a V/8 crank! Last edited by d.j. moordigian; 01-13-2011 at 03:08 PM. |
01-13-2011, 02:23 PM | #7 |
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Re: 5 Main bearing Model A block
And to think I've seen you call yourself an Ol' Country Boy .....
That's outstanding work, George. Good job! |
01-13-2011, 02:43 PM | #8 |
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Re: 5 Main bearing Model A block
The lifter guides are broken, I will be redoing them any way. I would rather save the good blocks, some one might need them for a stock engine down the road.
Last edited by George Miller; 01-15-2011 at 03:38 PM. |
01-13-2011, 02:45 PM | #9 |
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Re: 5 Main bearing Model A block
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01-13-2011, 02:46 PM | #10 |
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Re: 5 Main bearing Model A block
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01-13-2011, 03:04 PM | #11 |
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Re: 5 Main bearing Model A block
George, someday I am gonna have to come down there and bench race some with you.
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01-13-2011, 03:13 PM | #12 |
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Re: 5 Main bearing Model A block
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01-13-2011, 03:15 PM | #13 |
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Re: 5 Main bearing Model A block
George : What kind of power are you hoping to get out of this engine when all is said and done?
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01-13-2011, 03:48 PM | #14 |
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Re: 5 Main bearing Model A block
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01-13-2011, 03:51 PM | #15 | |
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Re: 5 Main bearing Model A block
Quote:
Why I had asked was Dan Price had cast up some saddles a few years ago and still had a couple of sets the last I checked. I almost bought a set until I found a 5-main girdle to use. Another crank to consider is the Hercules crank out of a forklift engine. I think the bore spacing was pretty much the same and it gave a ¼"(??) stroke. Are you gonna make your own billet rods? As far as getting 1 hp per cu in, Hudson pretty much was doing that with their 7X Flathead. I'd say that 1.25 --or even 1.5 hp per cu inch is very do-able with your combination! . Last edited by BRENT in 10-uh-C; 01-13-2011 at 03:56 PM. Reason: added sumthin' |
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01-13-2011, 03:51 PM | #16 |
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Re: 5 Main bearing Model A block
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01-13-2011, 03:55 PM | #17 | |
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Re: 5 Main bearing Model A block
Quote:
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01-13-2011, 05:19 PM | #18 |
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Re: 5 Main bearing Model A block
This is a very interesting project! I like your style, dig in and do it! How do you plan to anchor those extra main bulkheads? They look welded in, will that be it? Are you going for a big stroke? Thanks for sharing this with everyone on the Barn.
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01-13-2011, 07:04 PM | #19 | |
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Re: 5 Main bearing Model A block
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No going for a shorter stroke to reduce piston speed. Will increase the engine speed to make up for the loss of stroke. |
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01-13-2011, 07:12 PM | #20 |
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01-14-2011, 06:22 PM | #21 |
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Re: 5 Main bearing Model A block
What a beautiful job! With my machining talent and equipment I will just have to wait for Terry Burtz to come through.
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01-14-2011, 08:40 PM | #22 |
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Re: 5 Main bearing Model A block
That's interesting! (to say the least) Keep the updates coming, and THANKS for sharing.
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01-14-2011, 09:52 PM | #23 | |
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Re: 5 Main bearing Model A block
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Terry Burtz is to the 'machinist challenged' (US), as George is to himself! Terry we are pulling for you...come on son, get it done..as we can't afford Georges' great work!! lol |
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01-15-2011, 01:52 PM | #24 |
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Re: 5 Main bearing Model A block
The only ones that deliver here are, Yellow freight, U.P.S. and Darby Farkworts Camel train, I even looked under the entry room rug, and none have any record of delivery, I even checked with Santa, although he is still Mad about the imitation chocolate chips in the cookies, and the unstrained Goat milk, he was even unhappy about the New Playboy I left him, an he couldn't get back up the chimney. I will keep looking. thanks Herm.
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01-15-2011, 04:03 PM | #25 | |
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Re: 5 Main bearing Model A block
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If and when Burtz secures enough investors and pays them off and then works out all the bugs, George's great work may be the best deal ... |
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01-15-2011, 11:32 PM | #26 | |
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broken guide
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Quote:
Chuck |
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01-16-2011, 07:57 AM | #27 |
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Re: broken guide
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01-16-2011, 09:28 AM | #28 |
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Re: 5 Main bearing Model A block
George,
Are you making it full oil pressure? Thank you for the updates. GW |
01-16-2011, 09:55 AM | #29 |
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Re: 5 Main bearing Model A block
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01-16-2011, 10:07 AM | #30 |
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Re: 5 Main bearing Model A block
Bored the block for 5 cam bearings, so I can run a Chev camshaft, that way I can run double valve springs, so we won't have floating valves.
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01-16-2011, 03:43 PM | #31 | |
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Re: 5 Main bearing Model A block
Quote:
I believe in Terrys' work on his new model A block/engine and will expect to obtain a couple asap! I've followed his stated intentions and work in making his(our)dream come true, from the start! I'm sure that he has had plenty of backers, including me, offer financial and moral support for his success! It's exciting to anticipate something of this magnitude for us...like feeling of Christmas as a kid. In this case...an ole kid!! I personally miss his participation on this site and sharing his tremendous skills...the way George does by posting, etc. |
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01-18-2013, 12:07 AM | #32 |
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Re: 5 Main bearing Model A block
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01-18-2013, 11:15 AM | #33 |
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Re: 5 Main bearing Model A block
The Herc crank needs to be lengthened in the rear main area, some end for ended them and welded up a flange. Quite a project! George, you might want to think about RPM as flatheads aren't known to rev very high. A friend runs Bonneville, turned 150 in a lakester. He turns it 5500, that is as high as any flathead that I know of.
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01-18-2013, 11:45 AM | #34 |
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Re: 5 Main bearing Model A block
Great work, George. Something like this is a real interesting challenge.
But is 1ps per cu.inch really possible? I find it much. However, where will you install the engine? Hopefully in a nice traditional Hot Rod. Greetings Barney |
01-18-2013, 12:13 PM | #35 |
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Re: 5 Main bearing Model A block
I'm going to watch this one, very interesting stuff going on here.
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01-18-2013, 02:58 PM | #36 |
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Re: 5 Main bearing Model A block
The block has all 5 main bearing struts in. I have a chev V8 crank in there, but that will make a uneven fire engine. So it is on hold tell I find a crank to use.
The head is all done and runs very strong. Right now I;m using the head on my hill climb car. I have been working on my 30 pickup that was a real barn find, from a friend in Mich. |
01-18-2013, 02:59 PM | #37 |
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01-18-2013, 11:45 PM | #38 |
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Re: 5 Main bearing Model A block
Last I heard about Terry Burtz project is that he got a useable block casting. That was a couple months ago.
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01-22-2013, 10:48 PM | #39 |
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Re: 5 Main bearing Model A block
Awesome - congratulations.
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01-23-2013, 09:55 AM | #40 | |
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Re: 5 Main bearing Model A block
Quote:
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01-23-2013, 12:35 PM | #41 | |
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Re: 5 Main bearing Model A block
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I no longer get the Burtz engine updates since I've had to change my email due to a hacker. Each time I get hacked I loose all my emails and contacts. |
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01-23-2013, 12:40 PM | #42 | |
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Re: 5 Main bearing Model A block
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The engine you talked about, I have no knowledge about. I will check them out. I was hopping Terry would get his engine done. Then I could by one of his cranks. But at almost 76 I might run out of time, before he gets it done. |
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01-23-2013, 12:59 PM | #43 | |
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Re: 5 Main bearing Model A block
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The VW one I'm not sure other than I think its refered to as the 2.0TFSI. |
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01-24-2013, 12:49 AM | #44 |
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Re: 5 Main bearing Model A block
What is the advantage of using a late model crank, such as those listed? They are all a much shorter stroke so the cubic inch displacement will be a lot less. You would have to turn a lot more RPM to compensate for the smaller engine size, and a flathead engine loses breathing efficiency at high RPM. Plus, you'd need a long duration camshaft to make power at high RPM, so the low RPM power output goes in the toilet.
Thanks for enlightening me! |
01-24-2013, 06:51 AM | #45 | |
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Re: 5 Main bearing Model A block
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40 Deluxe, The GM 2 liter is rated to produce 260 lb-ft (353 Nm) @ 1700-5500 rpm which is a lot more than the stock "A" engine, of course its directed injected and turbocharged which I'm not sure what Mr Miller is after in the end. I have no idea what the stroke is vs the "A" I simply posted them as ideas as I knew the cranks could handle power. The rest was up to Mr Miller as I know he knows what he is doing. I simply tossed it out there as ideas of 4 cyl cranks. |
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01-24-2013, 07:09 AM | #46 | |
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Re: 5 Main bearing Model A block
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I want horse power not toque. I want to have a wide rpm range. You are not going to get that with a long stroke engine. If you do the math on the piston speed of a 4 1/4 stroke verses a 3 1/2 you will see there is a big difference at 5000 rpms. There for a lot less friction. If it was going to be a big truck hauling big loads you would want the torque. |
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01-24-2013, 10:05 AM | #47 |
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Re: 5 Main bearing Model A block
Wow, George, I'm definately impressed. If you make the rods out of 7075, will you add the wrist-pin bushings and insert bearings, or will you run directly against the 7075 aluminum? Curious minds would like to know...
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01-24-2013, 12:24 PM | #48 |
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Re: 5 Main bearing Model A block
The last set of rods that I made from 7075 I ran the wrist pins tight in the rods, with no bushing. I have used bushings one time before. Seems to work ok with out bushings. Will use insert bearings.
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01-25-2013, 01:31 AM | #49 |
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Re: 5 Main bearing Model A block
George, Guess I missed the fact that you are going overhead on this. The short stroke makes more sense now!
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03-02-2017, 02:31 PM | #50 |
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Re: 5 Main bearing Model A block
Up date I'm not working on this for now. Had some trouble with the camshaft, so decided to work on the old engine that I run before for the hill climb car. We will still use my home built cylinder head. It is running very strong right now. After the hill climb I will get back on the 5 main.
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03-02-2017, 11:25 PM | #51 | |
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Re: 5 Main bearing Model A block
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Thanks for update on both ! What is the compression ratio with your newly made Miller OHV Head ? |
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03-03-2017, 08:07 PM | #52 |
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Re: 5 Main bearing Model A block
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03-04-2017, 01:11 AM | #53 | |
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Re: 5 Main bearing Model A block
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Thanks ! Are your pistons even with block ? Do you have picture of comp chamber to share ? Curiosity ? Do you use model A crank; B crank or modified crank ? Last edited by hardtimes; 03-04-2017 at 01:13 AM. Reason: ............ |
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03-04-2017, 08:13 AM | #54 | |
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Re: 5 Main bearing Model A block
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There are more pictures on my making of a cylinder head post. I will re post it. |
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03-04-2017, 04:27 PM | #55 | |
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Re: 5 Main bearing Model A block
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Get more info every time read , from pictures and info ! Since you are skilled enough to make such equipment, can you also make ANY combustion chamber that you like (thinking hemi chamber) or are there limits to chamber design, in your opinion ? |
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03-05-2017, 07:31 AM | #56 |
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Re: 5 Main bearing Model A block
I never did a hemi, but I' m sure I could. Do they use hemi heads on race engines? I do not know.
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03-05-2017, 01:24 PM | #57 |
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Re: 5 Main bearing Model A block
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11-08-2017, 12:21 PM | #58 |
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Re: 5 Main bearing Model A block
Back working on this engine and my home built cylinder head. Had the back have of the cam off a few degrees. When I put it in the engine I had to cut it in the middle and add the gear for the dist and oil pump. The cam is for a 327 chev to match the crankshaft. I messed up on the rear of of the cam timing.
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11-08-2017, 01:43 PM | #59 |
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Re: 5 Main bearing Model A block
Hm, Miller...where have I heard that name before ? You didn't have a Miller relative (circa 20s/30s) who 'tinkered' with engines, do you !!
Glad to see that you are keeping the grey matter busy George |
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