4.0 or 4.125 stroke motor??

[glnrcg]

Looking for any pro or cons of going to a 4.125 stroke . I have the ability to go 4.125 with 6 inch rod with the block or to take it down to 9 inches and run a 4 inch stroke with 6 inch rod. Dont seem to see much over 4 inch stroke and just wondered if any problems running that combo..

[jed408]

unless it is a raised cam block you will have problems