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340 crank #680593
04/26/10 11:16 AM
04/26/10 11:16 AM
Joined: Jan 2003
Posts: 1,476
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gtx69 Offline OP
super gas
gtx69  Offline OP
super gas
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Joined: Jan 2003
Posts: 1,476
How do i tell a 340 crank from a 360 by looking at it? Any numbers on the crank or tell tell signs?

Re: 340 crank [Re: gtx69] #680594
04/26/10 11:22 AM
04/26/10 11:22 AM
Joined: Jan 2003
Posts: 3,505
DFW
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mr_340 Offline
master
mr_340  Offline
master
M

Joined: Jan 2003
Posts: 3,505
DFW
The factory 360 cranks I've seen have "360" cast into one of the counterweights. Most of the 340s used a forged crank, but the late 1972 and 1973 340s used the same crank as the 318 (same casting number). I'm sure they were balanced differently than the 318 crank. What is the casting number on the crank?


Floyd Lippencott IV
Re: 340 crank [Re: gtx69] #680595
04/26/10 11:23 AM
04/26/10 11:23 AM
Joined: Jan 2003
Posts: 25,200
Upper Midwest
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MoparforLife Offline
Too Many Posts
MoparforLife  Offline
Too Many Posts
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Joined: Jan 2003
Posts: 25,200
Upper Midwest
Measure the main journal:
340 will be 2.51 and a 360 will be 2.81


Clean it, if it's Dirty. Oil it, if it Squeaks. But: Don't fix it, if it Works!






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