i've been searching for a half hr and cant find the thread that has the casting numbers for 305 and 350 engines..... it was around last week sometime..... it had info on the 3 digit #'s on the passenger side of the block..... i have an engine that reads '638' i think.... is this a 305 or 350???? if anyone can tell me or post the link i would appreciate it...

 

If the complete casting number is 14093638, it's a 350.

 

i did another search on the boards and found where to look for casting #s, between engine and tranny bellhousing just shy of the firewall... and its confirmed, a 350!!!

 

sorry, heres the pic

 

one more...

 

MorTec, Inc. Chevy Smallblock V-8 Casting Numbers List

 

i couldnt see or find the casting #s , thats why i checked that location with the 5.7 stamped on it...

 

haha, looks like it needs a few bottles of degreaser and some new gaskets. that things pretty oily!

 

thats nuffin' compared to the whole engine, its pretty grimey, cant wait to pull it next week and take it apart... its an 88' so its pretty dirty....