Help with motor decoding

[Bastrd]

Hi there,

I am trying to decode my engine, i understand that its a 440 but what year exactly and other information evades me. 
Any expert that would lend me his knowledge?





Any help would be very much appreciated!

[Troy]

Troy

[John_Kunkel]

The July 24, 1969 casting date appears above the block casting number 2536430 which is the basic '66-'72 440 casting number, the dash 10 is a mold core revision number.

The arrow points to the D to show that it was cast on the Day shift, the dot in the clock symbol shows that it was the second pour of the shift.

G is the year code for 1970, 440 is the displacement and 2 10 is the assembly date February 10 (1970). Don't know what the inverted 5 is about but the absence of a stamped HP makes it a standard (350 hp) 440.

Note that there is over six months between the casting date and the assembly date, so much for SPD predictions.

[Troy]

Isn't "F" the code for 1970? Looks like over 18 months to me.

Troy

[69CoronetRT]

The July 24, 1969 casting date appears above the block casting number 2536430 which is the basic '66-'72 440 casting number, the dash 10 is a mold core revision number.

The arrow points to the D to show that it was cast on the Day shift, the dot in the clock symbol shows that it was the second pour of the shift.

G is the year code for 1970, 440 is the displacement and 2 10 is the assembly date February 10 (1970). Don't know what the inverted 5 is about but the absence of a stamped HP makes it a standard (350 hp) 440.

Note that there is over six months between the casting date and the assembly date, so much for SPD predictions.

John, I think Troy has it..."G" code = 1971.

Original poster...what is the VIN on the driver's side?

[Bastrd]

That's whats made the questions pop up in my head. Cast in 1969 and assembled in 1971 

The inverted 5 and what looks like an inverted A ? Makes me curious..

Unfortunately it is not a matching numbers car, the car is a 1968 Charger 383HP from birth. If i did my research right.
Vin: XP29H8B141838

[62 Max]

Same thing here,this was cast 4/69,came out of a 71 New Yorker with G440 before block was decked.

[John_Kunkel]

Isn't "F" the code for 1970? Looks like over 18 months to me.

OOPS, caught not counting on my fingers again. 

[Troy]

Isn't "F" the code for 1970? Looks like over 18 months to me.

OOPS, caught not counting on my fingers again. 

That's why I didn't say anything at first - because I wasn't sure I was doing it correctly (comes from only having 68s so there's less to memorize).

Troy

[Bastrd]

Thank you for the help, this is what i found out! Useful information.

1971 440
Compression ratio: 9.5:1
Horsepower (gross): 370 @ 4,600
Horsepower (net): 305 @ 4,600
Torque (gross): 480 @ 3,200
Torque (net): 400 @ 3,200
Carb: 4-barrel Carter
Intake/exhaust duration: 268° / 284°
Overlap: 46°
Base transmission: 3-spd auto
Gears:
Standard axle ratio: 3.35:1

Now, time to rip it apart and improve! 

[John_Kunkel]

The numbers above are only valid for the High Performance version, since the block isn't stamped HP it's the standard version with:

Compression: 9.0-1
Horsepower: 335
Torque: 460 ft. lbs.

The cam is milder and there was no 3.35 axle ratio available in '71, 2.76 would be more likely.

[Bastrd]

Crap..  , i just checked the diagram on this page: http://www.allpar.com/mopar/383.html

Thank's for the information John!

[71gtx]

Thank you for the help, this is what i found out! Useful information.

1971 440
Compression ratio: 9.5:1
Horsepower (gross): 370 @ 4,600
Horsepower (net): 305 @ 4,600
Torque (gross): 480 @ 3,200
Torque (net): 400 @ 3,200
Carb: 4-barrel Carter
Intake/exhaust duration: 268° / 284°
Overlap: 46°
Base transmission: 3-spd auto

that is for 71 440 hp 440 4bbl

for 71 44o np is 9.0