Does a 318 and a 340 have any common parts?

[0o7]

Just like the title says. Do they share any brackets, mounts, or any other parts?
Thanks for your time

 

[sublimeswinger]

Yes. Most non magnum small block parts are inter changable.

 

[0o7]

Yes. Most non magnum small block parts are inter changable.

So I could take an a/c bracket off of a '69 Polara and throw it on a 340?

 

[sublimeswinger]

I dont see why not.

 

[pagilman]

As far as I know everything but the pistons and crank will bolt together:munky2:

 

[340Dart]

The left (drivers side) motor mount is different. All your other brackets are the same.

Fred B

 

[IndianaDodge]

most parts will interchange besides the pistons, the 340 came with HP heads, intake, ex-manifolds, and a hotter cam. the 340/360 uses as stated above a different size engine mount on one side.

 

[Small Block]

Same with some parts for the 360 also. My 318 has a 340 forged crank and 360 J heads.

 

[72_Durstya]

as far as internals i know that 1972 and up 318/ 340's do share the same cast crank.

 

[pagilman]

:read2:Here's a question for you guys? Is the forged cranK in the 273's the identical crank in the early 340's? Did all 273's have a forged crank?

 

[AdamR]

as far as internals i know that 1972 and up 318/ 340's do share the same cast crank.

early 72 340s still had the forged crank.

 

[68 Sedan]

:read2:Here's a question for you guys? Is the forged cranK in the 273's the identical crank in the early 340's? Did all 273's have a forged crank?

No, because of the weight of the pistons/rods. They weigh more in a 340 than in a 273, so the crank counterweights are different

 

[muddog]

the crank is interchagable they have the exact same part number if you look it up in the book, the 340 just had a bigger bore and there rite about the motor mount

 

[68 Sedan]

Really. Well what about the rod/piston weight differences?