B Model Scat Crank
- Thread starter colin1928
- Start date
1931 flamingo
Well-known member
Why not contact SCAT and ask??
Paul in CT
Paul in CT
Crazydaddyo
Senior Member
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.
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I've only fit them to new builds. Blocks were machined with the crank in hand.
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gwhite
Senior Member
Forged crankshaft manufacturer - or a style of singing if you're into jazz.
J Franklin
Well-known member
Or what is left on the ground by game you are following during the hunt!
Pete
BANNED
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
Senior Member
The A/B crank is forged 4340.
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Pete
BANNED
You are right, I was thinking about that other guy that makes A/B cranks.
MikeK
Well-known member
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.
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.