68 hp manifolds in a B body

Has anyone used or seen any 68 Hp exhaust manifolds used in a 71-74 B body. I want to ditch my headers but I am not sure if these will fit...
Thanks
AL

What year is your B body? The 71-72 engine compartment is different than the 73-74.

the 71-72 engine compartment is almost the same as a 70-71 E body , may be subtle differences here and there but it is basically the same , they use the same K frame.

That said, the 340HP manifolds fit an E body , it's what they used on the 340 cars in 70 , so they should easily fit a 71-72 b body , 73-74 ????