The Ford Barn

colin1928 · 04-20-2013, 04:38 AM

B Model Scat Crankshaft Has anyone used 1
I know they use A model conrods
What do they use as rear main seal and thrust lip they looks a little strange in there photos
Thanks Colin

1931 flamingo · 04-20-2013, 07:54 AM

Why not contact SCAT and ask??
Paul in CT

colin1928 · 04-20-2013, 06:19 PM

Did contact them said the seal was new style but no idea which 1
As for the thrust lip missing on there crank no real answer
was hoping someone who who had fitted 1 could tell me if they needed to do any modifications or if it fitted straight in
Colin

Crazydaddyo · 04-20-2013, 06:25 PM

They use the SBC rear seal. Thrust can be set up for either center or rear main thrust. You tell them what you want when you order it. Try to talk to Tom Lieb when you call them.
I've only fit them to new builds. Blocks were machined with the crank in hand.

-

jim1932 · 04-20-2013, 08:20 PM

OK... what is SCAT??

gwhite · 04-20-2013, 08:22 PM

Sponsored Links (Register now to hide all advertisements)

Quote:

Originally Posted by jim1932

OK... what is SCAT??

Forged crankshaft manufacturer - or a style of singing if you're into jazz.

J Franklin · 04-20-2013, 08:51 PM

Or what is left on the ground by game you are following during the hunt!

ABento · 04-21-2013, 12:13 AM

SCAT is the name of the company in Long beach that makes crankshafts,rods and many other engine parts, quite a bit of it for General Motors. Tom is a collector of early vehicles out of the teens,real nice guy.

colin1928 · 04-21-2013, 12:41 AM

Thanks for the info makes sence to use sbc seal
also told the photos are not The B/C Crank
Cheers Colin

Pete · 04-21-2013, 01:19 PM

Quote:

Originally Posted by gwhite

Forged crankshaft manufacturer.

Not all are forged. The A/B and the flathead V8 are cast iron.
Don't try to make a nitro burner from one of their cast cranks.

Crazydaddyo · 04-21-2013, 01:48 PM

The A/B crank is forged 4340.

-

Pete · 04-21-2013, 01:58 PM

Quote:

Originally Posted by Crazydaddyo

The A/B crank is forged 4340.

-

You are right, I was thinking about that other guy that makes A/B cranks.

gwhite · 04-21-2013, 02:03 PM

Burlingtons are forged 4340 also.

MikeK · 04-21-2013, 06:08 PM

Eubanks and Drake made cast nodular (ductile) iron cranks for A's and I think B's several years ago. I haven't heard anything about Eubanks and Drake since about 2006. Volume 1 issue 2 of Model A Times had a rudimentary story about them.

If I could get my hands on one, I'd take a cast nodular iron crank for a banger any day over a forged! They are plenty strong, many high power big blocks from various OEM makers used them as production parts as they proved both superior and cheaper than forged. The two big advantages: 1) They are stiffer (flex less) than a forging and due to the grain structure they readily dampen shock waves, converting the energy internally into heat. 2) Superior bearing surface oil retention and oil drag, plusses with plain bearings like inserts or cast babbitt. Disadvantage: There is a limit, perhaps 250 hp on an A sized crank. That's well beyond my limit!

If a new one were to be cast with 80+% counterweighting it would certainly be a welcome 'buzz killer' for those nasty I-4 second order harmonics and permit an extremely light flywheel, taking loading off the rear flange.

04-20-2013, 04:38 AM	#1
colin1928 Senior Member Join Date: Mar 2013 Location: Australa Melbourne Posts: 878	B Model Scat Crank B Model Scat Crankshaft Has anyone used 1 I know they use A model conrods What do they use as rear main seal and thrust lip they looks a little strange in there photos Thanks Colin

04-20-2013, 07:54 AM	#2
1931 flamingo Senior Member Join Date: May 2010 Location: new britain,ct 06052 Posts: 9,390	Re: B Model Scat Crank Why not contact SCAT and ask?? Paul in CT

04-20-2013, 06:19 PM	#3
colin1928 Senior Member Join Date: Mar 2013 Location: Australa Melbourne Posts: 878	Re: B Model Scat Crank Did contact them said the seal was new style but no idea which 1 As for the thrust lip missing on there crank no real answer was hoping someone who who had fitted 1 could tell me if they needed to do any modifications or if it fitted straight in Colin

04-20-2013, 06:25 PM	#4
Crazydaddyo Senior Member Join Date: May 2010 Location: Orange, Ca. Posts: 197	Re: B Model Scat Crank They use the SBC rear seal. Thrust can be set up for either center or rear main thrust. You tell them what you want when you order it. Try to talk to Tom Lieb when you call them. I've only fit them to new builds. Blocks were machined with the crank in hand. -

04-20-2013, 08:20 PM	#5
jim1932 Senior Member Join Date: Oct 2010 Location: Hancock, MA Posts: 2,777	Re: B Model Scat Crank OK... what is SCAT?? __________________ Short URL: http://smu.gs/14g7eDW

04-20-2013, 08:51 PM	#7
J Franklin Senior Member Join Date: May 2010 Location: Oregon Posts: 5,959	Re: B Model Scat Crank Or what is left on the ground by game you are following during the hunt!

04-21-2013, 12:13 AM	#8
ABento Senior Member Join Date: Dec 2010 Location: San Luis Obispo Posts: 237	Re: B Model Scat Crank SCAT is the name of the company in Long beach that makes crankshafts,rods and many other engine parts, quite a bit of it for General Motors. Tom is a collector of early vehicles out of the teens,real nice guy.

04-21-2013, 12:41 AM	#9
colin1928 Senior Member Join Date: Mar 2013 Location: Australa Melbourne Posts: 878	Re: B Model Scat Crank Thanks for the info makes sence to use sbc seal also told the photos are not The B/C Crank Cheers Colin

04-21-2013, 01:48 PM	#11
Crazydaddyo Senior Member Join Date: May 2010 Location: Orange, Ca. Posts: 197	Re: B Model Scat Crank The A/B crank is forged 4340. -

04-21-2013, 02:03 PM	#13
gwhite Senior Member Join Date: Aug 2010 Location: Texas: Where Bob Wills is still the king! Posts: 354	Re: B Model Scat Crank Burlingtons are forged 4340 also.

04-21-2013, 06:08 PM	#14
MikeK Senior Member Join Date: May 2010 Location: Windy City Posts: 2,919	Re: B Model Scat Crank Eubanks and Drake made cast nodular (ductile) iron cranks for A's and I think B's several years ago. I haven't heard anything about Eubanks and Drake since about 2006. Volume 1 issue 2 of Model A Times had a rudimentary story about them. If I could get my hands on one, I'd take a cast nodular iron crank for a banger any day over a forged! They are plenty strong, many high power big blocks from various OEM makers used them as production parts as they proved both superior and cheaper than forged. The two big advantages: 1) They are stiffer (flex less) than a forging and due to the grain structure they readily dampen shock waves, converting the energy internally into heat. 2) Superior bearing surface oil retention and oil drag, plusses with plain bearings like inserts or cast babbitt. Disadvantage: There is a limit, perhaps 250 hp on an A sized crank. That's well beyond my limit! If a new one were to be cast with 80+% counterweighting it would certainly be a welcome 'buzz killer' for those nasty I-4 second order harmonics and permit an extremely light flywheel, taking loading off the rear flange.