Kenendcindyc

High compression head for 28 Std Six

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Hi again boys, Let me start off by saying I believe in keeping these cars as original as possible for future generations to enjoy and all modifications I have made are 100% reversible and all original parts are kept with the car. That being said, I enjoy my car and drive it as much as I can, lots of time in the White Mountains of NH where sometimes a little more power is required to stay with the flow of traffic and not be a hazard. Now if I was the only one on the road I would love to just drop down to second gear and enjoy the ride at 20 mph 🙂.  I decided to raise the compression above  5 to 1  in order to improve the efficiency  and gain some power and fuel mileage. I could mill the head and gain maybe one point of compression to around 6 to 1 but the head is perfectly good and straight just the way it is and that metal can't be put back on later if desired, haha. SOOOO I decided to make my own , I thought you guys and gals might like some pictures because we all like pictures, haha  I'll download some of the key ones because i have lots, I have put about 500 miles on it so far and its fantastic. I also had to change the advance curve in the distributor because with increased compression less advance is required. Enjoy, Ken

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Drilled some holes and some rough layout to keep me from machining the important parts. Sorry for the pink boys it’s really red trust me. 😬

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Assembled with tapered pins for perfect alignment , oh and those triangular groves are highly experimental haha😬 

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Made some new studs while I was there , same length as original in case I need to put original head back on for some reason. 

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Posted (edited)

Went from roughly 100 cc original combustion chambers to 55cc that calculates  to roughly 7.7 to 1 ( I didn’t calculate the exact head gasket volume so that may not be 100% accurate but real close. 😬 For some reason i don't have a fully assembled picture I'll get one tomorrow .

Edited by Kenendcindyc (see edit history)

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Tinindian, Thanks for the 👍. Ive only recently started posting here but I have been lurking here for awhile, Any man that has the experience and  has put on the milage you have is like a God to me, haha THANKS Again.

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With the generator on that side of the engine, that looks to be a '28 or earlier Chrysler engine ?

 

It could be parallax error, but your valves look to be on angle to the block face? 

 

Awesome work on the cylinder head. Just love it.

 

 

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Nope it’s a 28 Dodge Brothers 208ci engine. It is similar though. And yes the valves are canted over slightly. 

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3 minutes ago, maok said:

With the generator on that side of the engine, that looks to be a '28 or earlier Chrysler engine ?

 

It could be parallax error, but your valves look to be on angle to the block face? 

 

Awesome work on the cylinder head. Just love it.

 

 

 

Maybe I should read the thread title....lol

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Just now, Kenendcindyc said:

Nope it’s a 28 Dodge Brothers 208ci engine. It is similar though. And yes the valves are canted over slightly. 

 

Yes, remarkably similar.

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Posted (edited)

I think one advantage to the Dodge Brothers engine is lower end.  It’s got modern size 2.125” rod journals where I think the Chrysler engines of the era were only 1. Something inches. But I’m not exactly sure I maybe thinking of another brand. 

Edited by Kenendcindyc (see edit history)

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Beautiful work, well done!

did you also make your own dissy body?

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I have not made the distributor body, yet (it is the last of the white metal on my engine but so far no cracks). My distributor is a type 1-0836 and it is two pieces made up of a main body and a upper points plate. The points plate was starting to crack badly around the pin that the points pivot on. So I did make a new upper plate that uses a very common modern set of points. 

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One thing in life I wish I could do that I can't  is machine work.

Very nice....

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Nice work. Please let us know how it runs.  In the photo of the water-jacket plate on your kitchen table, I can't see the inlet hole on the underside view, but it is there on the top view. Please tell me what I am missing.

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