Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - chevy block cast numbers
View Single Post
  #1 (permalink)  
Old 04-10-2013, 03:08 PM
jwc jwc is offline
Registered User
Join Date: Jul 2009
Location: clio,michigan
Posts: 6
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
chevy block cast numbers

I have a sb chevy block full circle rear main that has no stamped id numbers or letters. on the drivers side of the block between the freeze plugs 099 is cast into the block and on the bellhousing flange there are these letters and numbers co 5.7lt gm sg1 can anyone tell me what I have? jwc
Reply With Quote