what year is my tbi 350

[donnie12]

im trying to figure out what year my tbi motor i have is and what it came out of i was told it has vortec heads idk is there any numbers on the engine i should be looking for

on the ecu it says

serv. no. 1227747
86ASDM k30263216s

 

[brokenparts]

you need to look at the back of the block for the casting number or on the front for the serial number. . Pop the valve cover off and try to find the numbers for the heads. 12558062 are supposed to be the more sought after vortec heads due to better casting (less problems with cracking). 10239906 are supposed to be the ones prone to cracking but who knows if that really is the case. The ECU you have is a decent one to work with.

 

[Gumby]

The casting numbers, especially those on the back of the block can go for a wide range of years.

There should be a stamp on the deck of the block that sticks out past the edge of the head on the right front of the engine, often behind the alternator. It's a flat smooth area. The numbers there will be stamped. It will tell you the build date, the build location and the last numbers of the VIN.

http://www.nastyz28.com/sbchevy/sblock.php is a good place to get those numbers decoded.

another http://www.nastyz28.com/chevy-engine-code-stampings.php