Hello

I started wrong and posted before i introduced myself first. Sorry for this. Here we go:
My name is Manuel, 38 years old and live in Germany.

I bought last year a '37 Plymouth 4-door as a family-/crusingcar.


Originally there was a 201 Flathead in, but the engine looked technicalwise not very well so i decided to swap it.
The idea is now to put a Slant in of course The aim is to reach between 170 and 190 HP.

After a few weeks, i found one. They are not very popular in Germany and little bit hard to find.

I tried now to get some informations about the engine with help of some Forums. Without much success so far.

Maybe one of you could help me out please:

8-225-T-26-6-CE







What i have heard from the previous owner is that The engine came out of a truck. It has no spark-plug-tubes. So it must be younger then 1975.


I know that there is a Topic with the Tuning-List but i havent found a link to the parts.
So I am searching now for "mild tuning" parts to reach my goal:

Cam-Kit
After reading the article "Hydraulic vs. Mechanical Cam Valve i am confused which one i need to order,
because i do not have the groove on the end of the Cam BUT i have the small rear rocker shaft bolt.

Maybe this one for hydraulic flat tappet:
https://www.summitracing.com/int/parts/cca-k64-247-4/overview/make/dodge
or this one for mechanical flat tappet:
https://www.summitracing.com/int/parts/cca-sk64-241-4/overview/
Which valve springs shall i choose then?

Or do you have other / better ones? I am happy for every opinion

Pistons
I think i need to go for the Sealed Power 0.040 oversize because i do not find Silv-O-Lite Top-Flat Pistons in oversize.
https://www.summitracing.com/parts/slp-244np40/overview/make/dodge
Are the Sealed Power ok so far or can somebody help find a Flat-Top Silv-O-Lite in oversize?

Valves
I read that you can use bigger Valves for Inlet and Exhaust. Which one could work in diameter (except the length)?
My machineshop could lengthen them and grind the grooves.


Sorry for my questions but i have never done / bought tuning parts.
I dont want the machineshop to choose everthing for me.


Thanks a lot in advance

Manuel

If your rocker arms have adjuster screws you need a mechanical cam kit. If they are non-adjustable you need a hydraulic kit.

_________________
Official Cookie and Mater Tormentor.

apparently Summitt does not carry the Silvolite pistons in oversize,

but you can order them from the manufacturer

https://uempistons.com/series-2123-silv ... !sq%3D1250

or the Sealed Power pistons would be fine, the important concept is that for your build stock style pistons and rods
would be fine.

and like SZ mentioned, do the rocker arms in your motor have adjusters on them?
if yes, you have a mechanical valve train
if no, you have a hydraulic valve train,,

I am guessing mechanical, as those sure look like mechanical dumb-bell lifters behind the valve cover.

_________________
Doo Ron Ron and the Duke of Earl are friends of mine.....
https://www.youtube.com/watch?v=uX8Nj8ABEI8

Guess work from service manuals and parts book. First number for year 8 1978 next 3 displacement 225 next usage T for truck next shift built 2 after that should be a 4 number date code.

Entsprechend den Motornummern ist Ihr Block ein Baujahr 1978, der ursprünglich mechanische Nockenwelle und geschmiedete Kurbelwelle war.

Ich habe Ventile für einen Ford 2,0 bis 2,3 in meinem Dodge verwendet; Sie sind größer als das Original und erfordern dünnere Ventilführungen. Die werksseitig gehärteten Ventilsitze können passend erweitert werden.

Einer meiner Freunde in Berlin hatte einen Dodge Dart, der zwar in den USA ein kleines Auto ist, aber in Berlin wirklich groß war.

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If it was easy, everybody would be doing it.

Welcome to the site!

Cool project and cool car.

Questions:
1) What transmission (and torque converter if automatic) and what rear axle ratio will you use?
2) What fuel octane/type will you use and/or what is your target static compression ratio?
3) What will be the main usage for the car?

These things will affect cam selection, and other parts.

Best wishes and happy designing and building,

Lou

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Home of Slant6-powered fun machines

Thanks for checking the enginenumber

@coconuteater
Did you live in germany? Your post doesnt "sound" like a Google-Translation
I will check the Ford-Valves out

Thats true with the carsizes. Its huge already if its longer then 5 Meters

@Dart270
to 1) original 904 / rear axle ratio is 2.76
to 2) Standard 95 Octane / Compression Ratio will be 9:1
to 3) Main usage will be cruisin / not racing

[quote="Syntaxerror"]Thanks for checking the enginenumber

@coconuteater
Did you live in germany? Your post doesnt "sound" like a Google-Translation
I will check the Ford-Valves out g/quote]

I lived for 8 years in Germany, 4 in Schweinfurt, one in Berlin, and 3 in Mannheim. I was military police, so I got to spend a lot of time with the locals. I really miss it this time of year.

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If it was easy, everybody would be doing it.

Thanks for the info on your car and usage.

You will want a pretty mild cam. If you want one "off the shelf" then these Howards Cams look good from Summitracing.

https://www.summitracing.com/parts/hrs- ... /model/225
https://www.summitracing.com/parts/hrs- ... /model/225

The first one is quite mild and you can use all stock parts in the valve train (mechanical lifters/adjustable rockers). The second one is a bit more aggressive, but still pretty mild but might require reworking of the valve retainers/seals due to the increased lift. The COMP one you posted above is between these two in terms of performance and will work better than the first one for 9:1 comp. I assume you will measure engine clearances and volumes to ensure you get the compression ratio you want. For cruising, you just want something a small bump up from stock, which is what these are. For the highest reliability and ease of use of all parts, I would probably pick the COMP 264.

We could also send specs for a custsom regrind cam from Oregon Cams, but that will be more work for you to locate a core or send them one. The difference in performance will probably be undetectable for your application.

Hope this helps,

Lou

_________________
Home of Slant6-powered fun machines

Ok. Thanks. Will take the Comp 264.

I also checked bigger Valves. What i found so far:

Exhaust:
https://www.summitracing.com/int/parts/mel-v1294

Intake:
https://www.summitracing.com/int/parts/slp-v-1900

Can i use both?

Of course the machineshop needs to grind a little bit, BUT all of them ahve the right Stem diameter
and more or less the same size.