#5 Heads on a 455

[shanghaismith]

Have any of you thought about or done this? What needs to be done to use #5 heads and what might the outcome be?

 

[jetsetw31]

Have you ever used a small hot coffee straw to drink a big cup of soda? Its the same thing when you put small block olds heads on a bbo. The compression will be very high also. but it just won't breathe. the opposite happens when you use bbo heads on a sbo. Compression drops, but some have made that work. Its too much making 5 heads work on a bbo. Even the worse bbo heads (I think they were "K"s)will flow better than #5s.
T

 

[shanghaismith]

Thanks for the reply. I would much rather learn something online than by making mistakes.

 

[jetsetw31]

Spoken like a true scholar.