Todd Schuster
Well-Known Member
I bought a '73 440 - has been bored .30 over - I have a fresh Steel Crank to go in the block, std bearings. I was unaware that this block was a Motorhome block until I realized the extra water passages under each cylinder. I purchased a set of reconditioned 452 casting heads from Arrow Heads thru Indy Cylinder Heads (chose those over 906 for hardened seats) - I was told by a couple friends to take advantage of the water passages and drill holes in my new heads for the extra cooling (will help on deterring detonation pings - esp w today's poor gas!).
Has anyone done this? I don't want to mess up the $ I just paid for brand new heads!!!
Has anyone done this? I don't want to mess up the $ I just paid for brand new heads!!!