Timing to high / advanced to far. Idling to fast. This can cause that problem.
What Chevy engine block has the castin I mean casting number 397004
No
there is a serial number stamp on the engine block(block-bottom half of engine)it is on the front,on the left or rihgt side
350 hp Chevy engine small block made in Canada!
This is the block casting number for a Chevy 305, build between 1976 and 1979.
That is not an engine block # That # is the fireing order on a Chevy engine. You must have gotten that # off of the intake manifold. Sorry we can't help you.
I don't know of any visual differences between them, but if you look up the block number at mortec.com you might be able to find it. The block number is stamped into a boss on the block just forward of the passenger side head.
The casting number will tell you what block it is, but in some cases the block will be more than one displacement. IE 302, 327, 350ci on the same casting number (chevy)
check the engine block casting number
That block was used from 1968 through1985.
i called the Chevy dealership and they told me the year
On the engine block. where on engine block?