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Old Jul 3, 2019 | 07:15 PM
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Help 351w identify!

Hi trying to I.D. my block to get my project going casting is
C90E 6015 B 8 and some other # 0b25 . It's a 2 bb 250hp i think and up to 300 hp on a 4bbl?
 
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Old Jul 3, 2019 | 09:39 PM
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Looks like an original casting number for the first 351Ws. Casting numbers here:

Kelly hotrod - Ford Engines Page 2

0b25 is probably the date code. "0" for 1970, "b" for February, "25" for the 25th of the month. They let the blocks sit for a while after casting, so your block probably ended up in a mid to late production 1970, for any model using the 351W.

Scroll down for more on casting and date numbers:

https://classicmustang.com/decoding-part-numbers/

Looks like the 250/300 ratings were the advertised HP for '70.

What are you doing with your motor?
 
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Old Jul 4, 2019 | 09:28 PM
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Originally Posted by 85e150
Looks like an original casting number for the first 351Ws. Casting numbers here:

Kelly hotrod - Ford Engines Page 2

0b25 is probably the date code. "0" for 1970, "b" for February, "25" for the 25th of the month. They let the blocks sit for a while after casting, so your block probably ended up in a mid to late production 1970, for any model using the 351W.

Scroll down for more on casting and date numbers:

https://classicmustang.com/decoding-part-numbers/

Looks like the 250/300 ratings were the advertised HP for '70.

What are you doing with your motor?
Thanks for the info I just got it trying to determine its integrity gonna check if it turns and then compression based on the results will weight what I should do with it use,rebuild or sell.
Its hooked up to a c6 transmission but I desire to get a manual, got a 3speed 69 toploader sitting in the garage but not sure if it can handle a 351w. Just the start of the project gonna do a ground up 69 mach 1 Mustang I know this is a truck site came here because I usto get alot of great info on my ford pick up needed some help
 
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