Crankshaft ID

General engine tech -- Drag Racing to Circle Track

Moderator: Team

Post Reply
User avatar
sheppard00
Member
Member
Posts: 83
Joined: Sun Jun 19, 2005 6:39 pm
Location: Texas

Crankshaft ID

Post by sheppard00 » Tue Jan 16, 2018 2:04 pm

Need help identifying this crank. Already tried scat' s website, and a couple hrs on the net with no avail.
You do not have the required permissions to view the files attached to this post.
mark sheppard
I may not know, but I can find someone that does.

1972ho
Expert
Expert
Posts: 630
Joined: Thu Nov 21, 2013 12:52 am

Re: Crankshaft ID

Post by 1972ho » Tue Jan 16, 2018 3:06 pm

Well it’s got scat’s name written on it.

Ericnova
Member
Member
Posts: 106
Joined: Tue Jan 01, 2008 2:56 am
Location: Southern Michigan

Re: Crankshaft ID

Post by Ericnova » Tue Jan 16, 2018 4:29 pm

1972ho wrote:
Tue Jan 16, 2018 3:06 pm
Well it’s got scat’s name written on it.
Looks like that is actually CAT?? Cal Auto Transpeed

3.500" or 3.480" stroke as a guess, based off part number.

User avatar
sheppard00
Member
Member
Posts: 83
Joined: Sun Jun 19, 2005 6:39 pm
Location: Texas

Re: Crankshaft ID

Post by sheppard00 » Tue Jan 16, 2018 5:13 pm

It is a 3.48 stroke. I'm trying to figure out what metal it's made out of.
You do not have the required permissions to view the files attached to this post.
mark sheppard
I may not know, but I can find someone that does.

User avatar
sheppard00
Member
Member
Posts: 83
Joined: Sun Jun 19, 2005 6:39 pm
Location: Texas

Re: Crankshaft ID

Post by sheppard00 » Tue Jan 16, 2018 5:14 pm

Another pic
You do not have the required permissions to view the files attached to this post.
mark sheppard
I may not know, but I can find someone that does.

Old as Dirt
Pro
Pro
Posts: 286
Joined: Thu Oct 08, 2009 12:09 pm
Location: Monroe Washington

Re: Crankshaft ID

Post by Old as Dirt » Tue Jan 16, 2018 5:50 pm

Guess you could smack the part with a wrench hung on a wire or supported by a small point. steel will go RINGGGGGGGGGgggggggg....... ductile iron will go DING.. cast iron will go THUD. ymmv.. :twisted:

User avatar
sheppard00
Member
Member
Posts: 83
Joined: Sun Jun 19, 2005 6:39 pm
Location: Texas

Re: Crankshaft ID

Post by sheppard00 » Tue Jan 16, 2018 7:32 pm

Definitely rings. Have a cast scat crank here also, as well as some stock cranks to compare.
mark sheppard
I may not know, but I can find someone that does.

1972ho
Expert
Expert
Posts: 630
Joined: Thu Nov 21, 2013 12:52 am

Re: Crankshaft ID

Post by 1972ho » Tue Jan 16, 2018 7:59 pm

That 43 at the end could mean 4340 there catalog shows 4340 as f-43,So maybe.

User avatar
sheppard00
Member
Member
Posts: 83
Joined: Sun Jun 19, 2005 6:39 pm
Location: Texas

Re: Crankshaft ID

Post by sheppard00 » Wed Jan 17, 2018 1:31 pm

Scat contacted me back. Current pn is 435034805700 so it's a descent crank.
mark sheppard
I may not know, but I can find someone that does.

Post Reply