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| Mystery Engine Casting Number https://slantsix.org/forum/viewtopic.php?t=60109 |
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| Author: | csheehy [ Fri Sep 02, 2016 4:28 am ] |
| Post subject: | Mystery Engine Casting Number |
Can someone identify my engine casting #? I can't seem to find any reference to my sequence and want to know if it's at least date-matched. Here it is: PT225R22430823 I have triple checked the numbers but can't seem to identify this particular casting. Any help is appreciated. The engine is in a 68 Barracuda. |
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| Author: | coconuteater64 [ Fri Sep 02, 2016 8:57 am ] |
| Post subject: | |
Well, other than it being a 225 I got nothing. :shrug: |
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| Author: | csheehy [ Fri Sep 02, 2016 10:42 am ] |
| Post subject: | RE: "I got nothing" |
Thanks @coconuteater64, I appreciate you poking around. |
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| Author: | wvenable [ Fri Sep 02, 2016 1:21 pm ] |
| Post subject: | |
Slant Six Dan is the guru on this stuff - hopefully he will help ya out. If I remember correctly 225R is a passenger car engine. The month and day of casting should follow. I have numbers on heads - but those can be interchanged. So looks like ya have a car engine in a car. What big help I am! PM Dan. 
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| Author: | DusterIdiot [ Fri Sep 02, 2016 3:10 pm ] |
| Post subject: | Yep... |
Dan could get this dialed in better, here is what I know: PT= Trenton Engine Plant 225= 225 slant six R=Regular Fuel 2243= Date Code (I think using the 10,000 day Chrysler Calender this is September 18, 1967)... 0283=Sequence Number |
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| Author: | '67 Dart 270 [ Fri Sep 02, 2016 5:36 pm ] |
| Post subject: | engine codes |
I like how "R" means regular fuel, but after about 50 years, that doesn't really mean the same thing any more....b |
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| Author: | DusterIdiot [ Fri Sep 02, 2016 11:34 pm ] |
| Post subject: | Lol... |
Quote: I like how "R" means regular fuel,
Some of the other codes that are strictly very late 60's can be: L or LC for low compression P for Premium fuel (that would usually be "Ethyl" in those days) S for Special Engine HP for High Performance HC for High Compression (Note most of these don't apply to the slant six...) Depending on placement in the sequence R,X,S a maltese cross, etc.. can mean overbores, bearing size changes, etc.... |
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| Author: | SlantSixDan [ Sat Sep 03, 2016 10:41 am ] |
| Post subject: | |
What's the block casting number (on the manifold side of the block)? |
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| Author: | csheehy [ Tue Sep 06, 2016 9:35 am ] |
| Post subject: | RE: "block casting number" |
Dan, the numbers on the manifold side of the block are below. Uppermost > 08305: Main numbers? > 2483430-12 Upside down near the starter > 2140 The paint on the main numbers is a bit heavy, the third-digit could be a 6, which would make this a '66 block (I think). I'll give it a better look and get back to you all. Thanks to all who have responded! |
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| Author: | SlantSixDan [ Tue Sep 06, 2016 11:19 am ] |
| Post subject: | |
Yup, 2463430 is a '63-'67 RG block with three freeze plugs. That's a little interesting: given the engine build date code DusterIdiot correctly decoded (2243 = 18 September 1967), and the engine's presence (originally?) in a '68 model, it theoretically should've had the '68-'76 2806830 RG block with five freeze plugs. Nevertheless, there's no reason why the earlier block would be incompatible with any aspect of a '68 engine or vehicle. The '68-up large-counterbore crankshaft is fully compatible with the '67-down block and vice versa. The "2140" cast number you found (7 June 1967) makes me think what we're seeing here is a '68-model engine build up with a '67 block. Block cast in June, engine assembled in September to go into a '68 car, that adds up. |
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| Author: | csheehy [ Tue Sep 06, 2016 1:14 pm ] |
| Post subject: | Dan + all who replied |
Thanks to all - this is an invaluable resource as a slant-6 owner. The collective knowledge and willingness to share your information is incredible. Best, -Chris |
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| Author: | Reed [ Tue Sep 06, 2016 1:17 pm ] |
| Post subject: | |
For what it is worth, I once bought a 225 that had been removed from a 68 Dart (original motor to car). It was a three freeze plug block but the engi e ID number on the pad had been stamped over and a maltese cross added to the end (I believe that means .010 undersize bearing from the factory). I think it was a 67 engine that was remachined by the factory and installed in a 68 Dart. I used several post-68 904 transmissions with that engine and had no problems. |
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