serial # on a 400 ci block

i am buying a 85 impala w/ a rebuilt 400. can u guys give me a web site w/ serial # so i can verify that it is a 400?

thanks

Check casting # here:

http://www.mortec.com/castnum.htm

Most desirable one is the 509 block.

thanks, now im not a big chevy guy, but im about to be. where can i find the # on the block.

Position #3 as shown here:

http://www.mortec.com/location.htm

well i baught the car tonight. not sure if its a 400 ci though. but i paid $1,600 for a rebuilt drive train and really nice inside. polished 16 in wheels. and runs great. now if it is a 400, what kind of heads and cam can i but and still keep it smog legal.

thanks.

Albert R.

You would have to research Cali's emissions laws and how they apply to swaps. At a minimum, any heads/cam you use would have to have a California E.O. Luckily a lot of good parts have this, including performer heads from Edelbrock:

http://www.edelbrock.com/automotive/streetlegal.html

i was thinking of ported vortec heads, a edlebrock performer plus cam. and a edlebrock intake. will i have to get the vortec heads drilled for the 400. any thoughts would be appritiated.

Originally posted by want.to.know
will i have to get the vortec heads drilled for the 400

Yes. It's not hard, I did it by using a head gasket as a template for hole locations, and did the deed with a hand drill.

I think Dirt Reynolds did the Vortec on a 400 install. Might want to hit him up for some info. He hangs out here and at NastyZ28.com.