Thx for the response. I know never say never but I was pretty sure it would be a 518, just wanted to be fairly certain before I drive 2 hrs to go get it. I only want the tranny (future project of putting it in my '67 Coronet) but I have to take the 360 with it. Wish I had a use for the 360 cause it's a pretty sweet small block. 308 heads (high swirl intake with a W2 exhaust port), a roller cam and it's still an LA, probably try to sell it but if it doesn't sell I'll moth ball it in the corner and save it.