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Elite Veteran
Posts: 1102
 
Location: Hayward, Calif | Hey Guys, Is the crankshaft rear flange the same on 70's - 80's LA318. In other words can a torque converter or a standard shift flywheel bolt up to it ? Also does it use the same vibration damper whether a torgue converter or a std shift flywheel is used? Thanks, Jerry |
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Expert
Posts: 3033
 
Location: N.W. Fla. | Same as what? 70s-80s engines are the same for those years. Different crank vs OEM FL cars |
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Elite Veteran
Posts: 1102
Location: Hayward, Calif | I have an 1980' s LA318 that was bolted to a T/F trans. I have a friend who has a 73 Dodge PU truck with a truck 4 speed std trans. who could use this eng as long as there are no issues with putting a std shift trans flywheel to this eng. crank flange. I don't think there are any interchange issues, but was just looking for verification. Jerry |
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Expert
Posts: 1740
Location: Alaska | The 62 and newer cranks have the same bolt pattern and you can bolt the standard flywheel to them BUT most crankshafts for an auto are not drilled for the pilot bearing.
There is a newer pilot bearing used by Mopar that fits in the end of the crank but the trans. input shaft has to be shortened to use it. The part number for this bearing is
listed somewhere on this site.
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Expert
Posts: 3775
Location: NorCal | Most crankshafts of that era are pilot drilled but not finish reamed for a pilot bushing unless a standard trans is installed; for unfinished cranks the above mentioned pilot bearing can usually be used. I have seen cases where standard shift cranks are not machined for a converter pilot hub.
So, as always with Mopar, ya never know until........ |
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Elite Veteran
Posts: 1102
Location: Hayward, Calif | Thanks Guys, I checked the end of this crank and it is drilled for a pilot brg. It is still bolted to an eng. stand so was a little hard to tell if the hole was finished. There was no id # on the block so had to research it by the casting #. Looks like it is about an 1985 Chry eng. Jerry |
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Extreme Veteran
Posts: 371
| 318's are internally blanced, standared or auto's they don't care. Nothing changed in them up to the magnums. I once took a 318 from a '78 Aspen RT and stuck it in my '70 Dodge 1/2 ton grany low and it worked like it was made for it. Just knocked the pilot busing in with no problems and tranny snout went right in, smooth and never a shifter bounce. |
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LA 318
