Slant 6 head interchange: 1975 head on 1969 Block?

Val69_170 said
Hey,

I bought a 1969 Valiant and the 225 head is junk, cracked and burnt valves.

I found a 1975-78 225 Head casting #3698447 on Ebay rebuilt with valves from a business for $210 shipped.

The guy at the shop selling it said I need to check to see it it will fit my block. He said my engine is earlier model. When I take out the spark plugs it has tin tubes surrounding them. He said to check if they are "large tubes"

The head they are selling doesn't have tubes? I don't get what I need to check. I bought a Haynes manual that covers 1967-76 Dart & Valiant 6 cyl.

Will this head work on my block is the question?

Thanks,
Click to expand...
Go ahead and use the '75-80 head if you found a good deal on one. They have flash hardened seats so that would be an upgrade from the '69 head. Just remember to use the later, short reach, tapered spark plugs or things can turn ugly.......