1972 Dodge Colt

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I cleaned the oil passages on the crank today.
DANG, that was a lot of yuck that came out, but sure glad I did.
I also got the freeze plugs out and most of the scale out of the water jacket.
Between rain showers.

I found a keyway, played with getting it in the slot.
It "should" work!

Anyway dropped the crank in and cleaned a bunch of parts to start the process.
Lots more room in the crankcase with the little crank.

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I got another head today along with a Racer Brown STX-21.
Going to start cleaning and getting the head back together.
Mapping a couple of cams.

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Missing springs, so I have to assemble a chamber to CC it.
I was told 44.
I think less.
The measurement will tell the tail.
The ports are nice, sure would like to flow test it.
For whatever that would be worth.
 
Those chambers do not look like any stock chambers I have ever seen. Milled or not. I have a head that has chambers at 39 CC's. and it does not have that "lump" between the valves opposite the spark plug.
 
It's casting number is 2206035-3
Casting date is 02 01 6, I don't know how to read that.
Ports look pretty good.
Manley SS valves.
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Everything needs cleaning but I am looking forward to how the Colt responds.
 
I degreed 2 cams yesterday.
The first one was not as big as I mis-remembered.
The second one looks like the one I will run.
I am still screwing with excel to produce the plots.
It used to be so easy to do plots, but like everything windows does, it just gets harder to find it.
 
slant six said:
I bet it is less than 38cc
Click to expand...
Unless I did something wrong, it's right at 30.
I will redo it tomorrow to be sure.
But looking at the cut, it has very small chamber diameters.
Never thought about that, but I guess as you cut it, it removes material all around the circle.
 
Maybe it is angle milled?
The dime is totally gone! Bye, Bye Roosevelt, Sir.
Measure a stockish head from the valve cover sealing surface to the deck and compare it to this one.
 
Finding a stock head in my garage is a challenge.
Almost as hard as finding a Virtuous Lady in a Dallas Gentleman's Club.

However, very unscientific measurement.
2121476-1, 3.60. This is the oldest head I have ever seen, predates Hyper Pak intake by 8422 numbers.
2206035-3, 3.39.
.2 just for argument.

To reduce the chamber volume one cc., mill the head .0063".
If the race head was at 60 CC and it's now at 30 CC then the cut would have been .189.

So it just might be cut that much.
 
That is a lot of cut.

I dont think I ever milled more than 0.120" off a head.
 
slant six said:
That is a lot of cut.

I dont think I ever milled more than 0.120" off a head.
Click to expand...
Mine I am running on Vixen is 34CCs and has been cut about .175". It still has the "dime" opposite the spark plug, so I surmise the head above has been angle milled a LOT.
 
The 2206035 head off of the '62 170 I have here looks like it would take a bonafide .200" to look like that.
 
I didn't measure both side, I will tomorrow to see if it's an angle mill.
Head bolt bosses are not milled, so I doubt it's angle milled.

It was on a Valiant that ran in the 11's so it's got some provenance.

I cleaned all the paint off and de-burred all the boogers.

I called Manley, they can't ID the valves.
I called Total Seal, they are going to quote a set of rings.
 
Hyper_pak said:
I called Manley, they can't ID the valves.
Click to expand...
I have a head with Manley valves and two were bad. I had to send them the valves, to get replacements. The big mistake I made was not getting a quote. $90+ ea for one intake and one exhaust. Plus shipping both ways.
PS: and over 4 weeks to get them.
 
Yea the woman I spoke to said 45 each because she could not match them to a current part number.
I have no idea what they started life as.
 
Charrlie_S said:
I have a head with Manley valves and two were bad. I had to send them the valves, to get replacements. The big mistake I made was not getting a quote. $90+ ea for one intake and one exhaust. Plus shipping both ways.
PS: and over 4 weeks to get them.
Click to expand...
Yikes! That seems a bit steep..
 
A few interesting discoveries working on the engine.

I put a dial indicator on my Cox/RAS? Roller rockers.
Marked with a 1.5 under roller tip.
They were purchased as 1.5 rockers.
They measure as 1.6 rockers!

I wanted to check the spec on a Roller Cam I purchased from Cox Brothers a few years ago.
No cam card furnished.
Now that I have some roller rockers I can run the numbers.
Problem, It won't clear the cam bearings as it goes in half way.
Now I know it has never been ground.

I used 3 copper gaskets to add deck height so I could check piston to valve clearance.
I got a measurement Saturday after I got some Manley 7 deg. retainers to fit the valves.
What I measured was what I expected with this big head cut.

Now I need some springs.

I made many trips to my machine shop today on cutting the pistons.
He could not use the direct connection instruction for valve notches.
He let me borrow a transfer punch to center punch the I and E centers.
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