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Old 04-07-2010, 01:52 PM   #1
RedRodder
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Default 1928 chevy 4cyl motor

Well, I have a flathead caddy that I can't use and got a guy wantin to trade a 1927 chev motor seized, and a running 28 motor with trans, for it. I really do want the motor seeing as my car is a 28 chevy, are there any vintage hop ups for the old chev motors?
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Last edited by RedRodder; 04-07-2010 at 04:10 PM.
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Old 04-07-2010, 02:02 PM   #2
DirtyWoody28
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Default Re: 1928 chevy motor

I think Tom Langdon would be the man to ask http://www.stoveboltengineco.com/
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Old 04-07-2010, 02:06 PM   #3
RedRodder
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Default Re: 1928 chevy motor

ok, I'll check that out, thanks.
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Old 04-07-2010, 02:07 PM   #4
RedRodder
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Default Re: 1928 chevy motor

It is a 4 cyl, not a 6, as far as i know the 6 came out in 29
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Old 04-07-2010, 02:25 PM   #5
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Default Re: 1928 chevy motor

I have a 27 Chevy that I am putting a 28 motor in. The 28 motor has a few more horsepower than the 27 and is more desirable. I believe it was because of the exhaust more than anything else. Compression ratio is really low- like 6 to 1 (can't remember but you will see that the piston is about an inch from the head at the top). I talked to an expert about raising it. He said you might be able to get away with it if you added more intake bolts, but he was a purist. Top speed stock is about 45 MPH, but man are they cool sounding engines. The coolest part was when I took mine apart. Everything and I mean even down to the bearing caps, has the Chevy logo on it. You might want to check out the Vintage Chevy Club. www.vcca.org
Good Luck!
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Old 04-07-2010, 02:30 PM   #6
RedRodder
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Default Re: 1928 chevy motor

cool, thanks, i wonder with a compression that low, convert to insert bearings, find a way to brace the bottom end, and build a really mild blower setup for the intake, more for conversation than anything, hmm, or stock with some old school hopups would be cool, anyhow, thanks, I'll check out the VCCA someone else i was talkin to at work yesterday brought them up too.
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Old 04-07-2010, 02:54 PM   #7
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Default Re: 1928 chevy motor

I don't know about blowers, but a local machine shop rebuilt a '28 engine for a customer's stock restoration, and since the stock bore was 3.6875, they overbored it to 3.75, which gave them several modern piston choices. I think they ended up using standard bore Chevy 265 pistons, which came up higher in the cylinders and raised the compression. The car's owner said that it made a noticeable difference in power. Bob Rufi really worked one over and ran it in a streamliner in 1940, setting a class record that held until 1948.
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Old 04-07-2010, 03:23 PM   #8
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Default Re: 1928 chevy motor

might have to do some diging in the machine shop category, some domes or popups would probably help out, thanks
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Old 04-07-2010, 03:32 PM   #9
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Default Re: 1928 chevy motor

look up a fellow on here named unsafe6.....he is building these and uses modern big valves and plenty of other cool stuff....he will be happy to hear from you i'm sure...
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Old 04-07-2010, 04:09 PM   #10
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Default Re: 1928 chevy motor

ok, now is there a difference in the 28 truck and car motors? the 28 is a 4cyl out of a dump truck
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Old 04-07-2010, 04:45 PM   #11
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Default Re: 1928 chevy 4cyl motor

anyone have a 1928 chevrolet 2dr coach driveline? lol
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Old 04-07-2010, 04:57 PM   #12
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Default Re: 1928 chevy 4cyl motor

i don't know much but 27 has only 1 exhaust port and two intake? something like that
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Old 04-07-2010, 05:32 PM   #13
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Default Re: 1928 chevy 4cyl motor

seems I heard something about using an Olds 4 cyl head....keep on checking
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Old 04-07-2010, 06:15 PM   #14
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Default Re: 1928 chevy 4cyl motor

A hundert years ago or so, there was a guy that ran a '28 Chev. with a cross-flow '25(?) Olds head in a stripped-down Crosley at the Colton Drag Strip. Went as fast as when he ran his V-8 60 in it as I remember. Something like 80 -- which was faster than my stock Model A at 52.
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Old 04-07-2010, 07:36 PM   #15
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Default Re: 1928 chevy 4cyl motor

I'll bet that head is a real bugger to find
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Old 04-07-2010, 10:55 PM   #16
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Default Re: 1928 chevy 4cyl motor

The '28 engine is pretty much the pinnacle of early Chevrolet 4's, but there are some things you can do to it.

The "easy" hop-up for a '28 Chevrolet engine is to use a '23 Olds head which has two inlet ports and three exhaust. The only issue with using the Olds head is that it has 1:1 rockers- the answer to that would be to mill the rocker shaft bosses and make new ones to use the 28's rockers (which are rather weak and prone to bending). Guys have used late 20's Nash rockers (like finding hen's teeth) or having their own made.

There wer some early aftermarket heads, but they are exceedingly difficult to find, worth a good used car, and in some cases less effective than the stock head.

For a little more boost you can also use Ford A rods, a C crank etc.

USE A DIFFERENT CARB- I'll quote a good friend who said that the stock Chevrolet carb is "good for running a mild lawnmower".

Let me know if I can be of any help- I'm in the process of tearing down a '28 right now and will hopefully be putting it back together in the not-too-distant future.

Have fun, Bill
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Old 04-08-2010, 07:36 AM   #17
Mac the Yankee
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Default Re: 1928 chevy 4cyl motor

Olds 3 port heads are not that easy to find, but not impossible, and for some strange reason they seem to be easier to find in Australia.

If you really want one, PM Jimmy B- he's good at finding them.
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Last edited by Mac the Yankee; 04-08-2010 at 08:14 AM.
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Old 04-08-2010, 09:05 AM   #18
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Default Re: 1928 chevy 4cyl motor

On the subject of carburetion---- the stock updraft intake can be flipped over and bolted back to the head. A friend did this and bolted a Stromberg carb from an early 4 cylinder Jeep on it.
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Old 04-08-2010, 11:22 AM   #19
Mac the Yankee
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Default Re: 1928 chevy 4cyl motor

HEATHEN,

Do you have any more info on the model of stromberg?

I also know of at least one fellow who ran a pair of side draft carbs bolted directly on to the head.
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Old 04-08-2010, 03:40 PM   #20
RedRodder
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Default Re: 1928 chevy 4cyl motor

http://vcca.org/forum/ubbthreads.php...ultimate_chevy_



I found the above thread very informative. In one of the vintage racer links they have a pick of side drafts bolted to the head. I am now wondering how to go about building a pressure oiling system for the motor. Also i now have the motors as of last night and am wondering how to build a driveline. the rear end under the car is an 80s toyota 4x4 rearend of some sort, same width and bolt pattern as original, plus it has a cassette type third member, kind of a neat idea. I have two trannys, what does the lever on the shifter do?
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