Help? Inline 6 Engine Number

I am trying to figure out what type of engine someone has. The serial number is 3921968. Inliners.org...stated 230-250...which is it? Ths.

 

DUHH,,,what flavor,,,?

 

where did you get the number,The number on the pad behind the distributor is the SERIAL # is this where you got it?

 

Yes, I believe he got it off the pad behind the distributor. How can I help him identify whether its a 230 or a 250?

 

one's serial and one's casting, which may help to id the motor

 

did you get the PM.

 

This also says 230-250.

http://67-72chevytrucks.com/vboard/showthread.php?t=356268

This site may help.

http://novaresource.org/codes.htm

Or this one.

http://www.stevesnovasite.com/forums/archive/index.php/t-113379.html

According to this last site: There are stamped numbers on the dist. pad. Some 230,250 blocks would go either way off them numbers easy way to tell a 230 from a 250 is to pull the plugs and look at the piston. a dished piston is a 250 a flat top is a 230.

 

try this http://chevy.oldcarmanualproject.com/models/engine.htm

 

this is for 66.....
The 230

• The 1966 Chevelles, El Caminos and Novas could be equipped with the 230-cubic-inch in-line six. The engine had a single-barrel carb, a 3.87-inch bore, 3.25-inch stroke and 8.5-1 compression ratio. It developed 140 horsepower and 220 ft.-lbs. of torque. Chevrolet kept the engine until 1969. The three-speed manual or automatic complemented the engine.
  
  

The 250

• The 1966 Chevrolet Impala and Chevy station wagons and trucks received the single-barrel carb, 250-cubic-inch six as the base engine. It had a 3.87-inch bore and 3.53-inch stroke with an 8.5-1 compression ratio. It developed 155 horsepower and 235 ft.-lbs. of torque. It continued to power Chevys and GMC trucks through 1984. The three-speed manual or automatic came with the engine.
  
  

Read more: 1966 Chevy Inline 6 Cyl Engine Specs | eHow.com http://www.ehow.com/facts_7457758_1966-6-cyl-engine-specs.html#ixzz2J1ScMH8p
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Great, thanks for the info guys I'm trying to get more info from him. My question is are they worth anything? Would they be ideal for a early chevy say 1953/54 Chevy car? I imagine parts would be easy to find.

 

The 250 valve cover is orange.

 

Might get 20 mpg. Not worth much around here. Is it free to get it out of his yard?

 

you can get ok (speed) parts.....

 

That casting # 3921968

Began in 1973 and it's a 250