70 318 with 340 internals/Cyl Head

340sFastback said

Yeah it could have a 340 crank in there and be externally balanced I think that is possible.
And yeah I would not sweat what is inside that engine cause you won't know unless you take it apart.

If engine runs good then look at other aspects of the car I would not focus too much on that engine that is easy to change later.

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Concur. Thats what I said , it is what it is. The guy who has it mentiond the 340 internals like it was a deal. I never heard of that in my time in SB Mopars, except for my 2000 4.0 Jeep which is easy to stroke with a 258 crank. He got this engine in an estate sale he claims and was given "anecdotal" info about the motor. He has ran it now for a while and says it runs out great and has some lope and will drive anywhere. Intake, 650 4 Barrel, Headers, 3800 stall, Accel Dizzy, 3.55 gears and 255 tires. This appears to be a professionally assembled engine. It should bring a nice smile. Ya, I'll be all over an AirGap Int.

If I get it I'll throw up some pics. It's a great deal as this guy has his eye on a 70 Chevelle SS and is ready to sell!