MTFCA Forum

Hi guys. Need some help verifying these crankshafts. These came from a long time speedster collector. The top crankshaft is obviously Model T. I believe the middle and bottom crankshafts were other manufacturer; however, often used in the Model T to improve the strength of the bottom end when building a performance engine. I believe the middle crankshaft is the Chevrolet and the bottom is the rare Wiils St. Clair as seen in this previous post http://www.mtfca.com/discus/messages/17 ... 1301087651
The rods and mains on the bottom crankshaft measure 1.720 across the board. It is drilled for oil pressure. Your thoughts much appreciated.

The middle one is Chevrolet 4 cylinder thru 1925 to 1928.

Quite correct about that tough "springy" Chevrolet shaft in the middle.
I'd bet a cold beer or a hot coffee that the Chevy shaft is bent and might need a peening to get him back to straight.
.120 thou in the other direction and he just laughed at me.
Very neat pics!

Thank you for the comments. Here is a picture from a MTFCA forum topic regarding crankshafts which shows the Wills St. Claire crankshaft compared to the SCAT and Model A conversions.
Here is also the link to that discussion.

http://www.mtfca.com/discus/messages/25 ... 1331537671

Both the Chevrolet and Wills St. Claire crankshafts will be made available for purchase in the classifieds. What would be considered a fair asking price for each? As always, you advise is appreciated.

Sorry cant help with the Chevrolet, the two I have I got free. One was in a complete engine. Might check eBay in the sold section to get idea of trending.

Just for grins, this is what Maxwell was doing about that time period.

Hmmm,....."interesting" Rich. I don't believe that what you posted is a photograph of an actual crankshaft. It doesn't look like a "drawing" either, but must be some kind of an "artists conception", because as shown, there is no center main bearing! Could that be right? Weird!

It is out of the parts book for 1915. Here are pictures of my actual engine. Yes! Weird! And it runs pretty well.
Rich

Mark, did you find a benchmark yet?
The last '28 Chevrolet engine I bought (3-4 years ago) cost me 300 so... Gotta be worth a 50? Probly more. I'm out of touch.
Hope that helps.
Rich, that's neat! IH used cranks like that on some of their tractors in the 20's & 30's. Big heavy shafts on two large ball units.

Mr. Ed knows crankshaft identification......lol!!!