Thread: Need help with a crank casting number!

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I have a crankshaft with a casting number of 93426851. I have searched the web for the past few days and have found nothing. Any idea what it is?

Does this sound familiar??.

I purchased a chevy car with a crate motor. It has a viberation - JustAnswer

Closest I could come was with the beginning of 934 was engines that ranged from 307's to 350's.Some ending in 1178.Look at the big three for it as aftermarket(Jeg's,Summit,Competition Products). How does journals measure??. Main/rod.

The journals are stock 350 (2.45/2.10).

Is that you in the link??.Can you provide more info about why your asking this question??.Does the engine have a 350 casting number??.Can you give us a pic of the H/B and flexplate??.What size H/M does it have??.Any other numbers on the crank??.

yeah the best i found was that link about the "ask the mechanic" (same one i think gary found) with the 350 w/ possible 400 crank in a 80-85 crate motor, however i did look at a lot of crate motors from GM performance section on summit and some others with similar looking (not exact) casting numbers starting with the #9.

If it is a crate motor casting/forge number then i'm not sure which book you would go to to reference those numbers since the published numbers for casting/forge numbers are for ones produced by GM in their stock production vehicles. I even tried using the 93426851 number and looking it up as a part number or replacement part number for an older crate motor cast crank. not much luck there either in the searching last night. hopefully someone will swoop in and help you figure this out. maybe it would help if you could tell if its a cast or forged crank and what the casting numbers are on the actual block and provide a vin id/suffix code, and date marks off the motor?? just throwin some "stuff" out there hopin somethin sticks

That is not me in the link. I purchased the motor under the pretense that is was a 383. I decided to pull the pan just to take a look inside and found a bent rod. I have since torn the entire motor down and trying to piece together what the motor really is. It is a 4.000 bore/3.48 stroke. The block is a '94 mexican goodwrench crate motor block.

So which number is the block? and im assuming it says hecho en mexico on the block and "vp" as the suffix? pics of the markings would be ideal to see what your seeing, (block, crank, vin id and date/mexico cast)

Originally Posted by hercpilot

That is not me in the link. I purchased the motor under the pretense that is was a 383. I decided to pull the pan just to take a look inside and found a bent rod. I have since torn the entire motor down and trying to piece together what the motor really is. It is a 4.000 bore/3.48 stroke. The block is a '94 mexican goodwrench crate motor block.

Just another 350 chebbie.....

Originally Posted by Dave Severson

Just another 350 chebbie.....

I think stock sbc cranks have a date code on them...I don't see that number anywhere.

So now what is the next move you want to make??.

Trust me the word "crate" is over used and the quality of them runs the all over that place.

Just gonna bore it and stroke it!

What kind of damage did you find for a "bent" rod??. Please open up with more info for us to help you.