Dodge RamCharger Central banner
1 - 7 of 7 Posts

·
Registered
Joined
·
58 Posts
Discussion Starter · #1 ·
I need a flywheel for a 340. So I'm assuming that I can use off a 318 but not a 360 if this is correct is there away to tell the difference between a 318 and 360 flywheel. I have a couple kicking around here but not sure what they come off. Thanks in advance for any replies.
 

·
Super Moderator
Joined
·
29,558 Posts
Does your 340 have a forged or cast crank?  If it has a forged crank, it can use a 318 flywheel.  If it has a cast crank, you will need one specifically balanced for a 340 with a cast crank.  A 360 flywheel will not work.
 

·
Registered
Joined
·
58 Posts
Discussion Starter · #3 ·
The crank is forged so is there an obvious why to tell if a flywheel is 318 or 360. Thanks
 

·
Premium Member
Joined
·
5,548 Posts
360 flywheels have very large holes drilled in the back side for offset balancing.  Their rare anyway.  I believe its 143 teeth for truck trans.
 
G

·
I should have posted this too, my apologies. The 360 flywheel out of my '90 W350 is indeed a 143 tooth, has the number 2843212 cast on the back. This number checks out with the Mitchel's book.

This number shows to be for 360 pass cars, 71-74, 3410916. Shows no numbers after '74,  '75 up the manual was only available behind a slant 6/ 318 in pass cars.

No diameters given for any of the above.
 
1 - 7 of 7 Posts
Top