Please tell me what these heads are?

[Robry 87]

I've got two new set of heads but are thay worth useing can anybody tell me the cc, and year?3998983 and 333882 it could be 338882.

[1976Scottsdale]

882's are open chamber 76cc crack proned smog heads.  They are okay for a bone stock, low HP engine.  DO NOT get them hot or they just crack.  A 160 thermostat and a 3 or 4 row radiator are your best friends.

[Robry 87]

Ok good so that set will work on a stock motor.BUT how about the other set the #'s on the them are side to side not up and down like all the other sets i've seen there sopost to be off of a 71 vett motor?but there is a 7# code on the other heads not 6 like all the others i've seen.I don't no where to look up #s at.

[VileZambonie]

I don't recognize that#. Double check it

[Robry 87]

I'll post a pic today so everybody to see them.

[Robry 87]

Never mind guy's i cleaned them heads up and the set with the #'s3998983 is bad between cylinder's but sill would like to no the year and cc i've searched all over the inter net but no luck.

[VileZambonie]

make sure you're reading the # carefully and that it is the correct # sometimes 3 look like 8's etc. Not a very common casting # if it is correct.

[bigkountry]

Heres a couple that it might be? Just a thought.

3998993 350 Goodwrench crate engine, Mexican made

3998993....72-73...307/350......75cc chambers

Heres a short discussion on a vette forum as well.

http://www.corvetteforums.com/m_25311/tm.htm