New block question
my block has a 400 stamped by the front freeze plug on the drivers side.
it also has a 77 stamped by the back distribitor and numbers g197.
it also has a (yu) stamp in the front upper passenger side near the water pump.
500557 is also stamped in the back passenger lower corner.
GM-3 d N is on the passenger front lower corner.
These are the numbers that I found.
I know the numbers g197 are july 19 1977
Can I assume that this is a 400 or did they use 400 blocks to make 455's.
Does anyone know what these other numbers are?
my block has a 400 stamped by the front freeze plug on the drivers side.
it also has a 77 stamped by the back distribitor and numbers g197.
it also has a (yu) stamp in the front upper passenger side near the water pump.
500557 is also stamped in the back passenger lower corner.
GM-3 d N is on the passenger front lower corner.
These are the numbers that I found.
I know the numbers g197 are july 19 1977
Can I assume that this is a 400 or did they use 400 blocks to make 455's.
Does anyone know what these other numbers are?