another slate #
A 225R 12? The A might =4 and the last digit I can't read.
Its blue with 5 freeze plugs. and has peanut style head on it.
What year do you think it is?

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67Cuda,FAST EZEFI,340cu,CR=10.25,RollerCam&Rocker (XR268HR,#20-810-9)(#1622-16)(EddyRPM#60779,#7576), (MSD6AL,#6425) A904, GearVendorsOD, 8 1/4,3.55:1, ClassicAir

Could easily be a '74 225.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

What part of the number do I need to focus on to know the date for sure? First digit or last ones?
What are you basing your guess on?

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67Cuda,FAST EZEFI,340cu,CR=10.25,RollerCam&Rocker (XR268HR,#20-810-9)(#1622-16)(EddyRPM#60779,#7576), (MSD6AL,#6425) A904, GearVendorsOD, 8 1/4,3.55:1, ClassicAir

Found by searching: http://www.slantsix.org/forum/viewtopic ... ne+numbers

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Yeah....Im the one who destroyed this rare, vintage automobile.....

Hey slant six Dan That is amazing that you have that kind of info I have to go and check the numbers on my block!

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1956 Dodge D100 Pick up
power plant 225 slant six

here are the casting numbers on my block 2806830-3 BF I know these are not the engine #'s But I was wondering if you could tell what year the motor is from this info. It has 5 freeze plugs

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1956 Dodge D100 Pick up
power plant 225 slant six

2806830 is the casting number of an RG block (198 or 225) cast between 1968 and 1975.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

Was able to read the box number more closely.
4 225R 12 7
Other box which has a points dist. in it
H 225R 5 23 front 4B233301 rear

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67Cuda,FAST EZEFI,340cu,CR=10.25,RollerCam&Rocker (XR268HR,#20-810-9)(#1622-16)(EddyRPM#60779,#7576), (MSD6AL,#6425) A904, GearVendorsOD, 8 1/4,3.55:1, ClassicAir

1974-model 225 built December 7, 1973.
1972 225 made on May 23, 1972.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

My '68 Dart has a '67 style RG slant in it...and it is original as far as I have been able to tell. I believe the date of sale on my Dart was January '68, so it could've been built using left-over '67 parts. This has always made me wonder what kind of torque converter my car has. Time will tell...but all I know is that I'm going to pull the engine and measure before I ever order any parts.

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'68 Dodge Dart 4dr Sedan

What is meant by "1967-style" engine? You have 3 freeze plugs instead of 5? How have you checked for engine originality?

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

Yep, 3 freeze plugs. I assumed the engine was original based on that everything else in the car looked untouched when I bought it, and there was nothing about an engine replacement in the car's records. It's POSSIBLE the engine had been replaced at one time, but unlikely I think with only 130,000 miles on record and the car being driven constantly through 4 owners before getting to me. I'll get some casting numbers off the block tomorrow out of interest.

Even better: Look for a partial VIN stamping on the block, maybe near the rearmost spark plug or on the edge of the engine side of the bellhousing flange.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.