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PostPosted: Wed Jun 19, 2019 6:25 pm 
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Turbo Slant 6
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Joined: Fri Dec 30, 2005 2:49 pm
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Location: Houston, TX
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Later narrow-rib block with three-digit casting number on driver's side, so it's late '75 or later. I received it without a head. Stamped number on block deck is "8225 R 7 72F". Based on previous experience, I think the leading 8 makes it a 1978 engine (cast crank). Can anyone confirm?

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Somehow I ended up owning three 1964 slant six A-bodies. I race one of them.
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PostPosted: Thu Jun 20, 2019 9:19 am 
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Joined: Fri Feb 29, 2008 10:49 pm
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Location: Salem, Oregon
Car Model*: 58 Plymouth Plaza 2dr, 63 Valiant Signet 200 2dr
That initial 8 should be for 1978. Obviously a 225, and if I recall, the "R" means it uses regular grade fuel.

I'm sure if SlantSixDan sees this he'll come up with even more info. :mrgreen:

~THOR~

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1958 Plymouth Plaza 2 door Club Sedan
1963 Plymouth Valiant Signet 200 HT - "CL4P-TP"
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PostPosted: Thu Jun 20, 2019 9:55 am 
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Turbo Slant 6
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Joined: Fri Dec 30, 2005 2:49 pm
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Location: Houston, TX
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The 1975 engine Dan identified for me had stamped code 5225R 287, and he wrote the following:
Quote:
5: 1975 model year
225: Duh
2 8 7: proof Chrysler were in such shambles in 1975 they could lose toilet paper on its way from the roll to their backside. Instead of the 4-digit number referring to the 10,000-day calendar that "should" be there, roughly from 4767 (16 Aug '74) through 5110 (25 July '75), that's an olde-tyme date stamp suggesting the engine was built on 8 February 1975, with the "7" meaning a production line, a shift, or the stamper's favourite number.


So I'm guessing that this engine (8225R 7 72F) was built on July 72nd, 1978 by a guy named Fred. Actually, an engine assembled as late as July 72nd was probably for the upcoming model year, so maybe it was July 72nd, 1977? :lol:

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Somehow I ended up owning three 1964 slant six A-bodies. I race one of them.
Escape Velocity Racing


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PostPosted: Thu Jun 20, 2019 10:27 am 
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Joined: Fri Feb 29, 2008 10:49 pm
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Location: Salem, Oregon
Car Model*: 58 Plymouth Plaza 2dr, 63 Valiant Signet 200 2dr
Seems reasonable to me :lol:

The mention of losing the toilet paper always cracks me up too haha.

~THOR~

_________________
1958 Plymouth Plaza 2 door Club Sedan
1963 Plymouth Valiant Signet 200 HT - "CL4P-TP"
Licensed Auto Appraiser - RevItUp Classic Appraisals
President - Cherry City Bombers CC
Part of Tyrde-Browne Racing


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