<VV> 64 head question again............

[John Miller]

In what I've read the 64 110 heads only match with 64 cylinders because they are a different size than the later models. Does this mean I can or can't use the later model 110 heads without any modification on the 64 cylinders?  

"Does this mean I can or can't use the later model 110 heads without any modification on the 64 cylinders?"

thanks again
john miller