4.8 or 4.9 motors

Anyone have an opinion on the 4.9 space combination? Worth the money? Going to pull the trigger on one of them with a C rotor.

 

ATI developed a damper and pulley combo because of shortened crank life with 4.9 bore space ( Ty Drive and roots). Saw it at PRI.

 

4.9 all the way. It's only gonna get better the more companies that start making parts. You can run it easier on parts and make more power. No secret heads, piston setups or anything else. It's all off the shelf. Same exact parts every major pro team uses. 4.8 is all tapped out. Aside from 65-70mm cam short deck blocks that are on back order and only available to certain teams and even those ones don't make same power as 4.900 on Dyno. They have to be wicked lean to be close to same power.

 

^what he said. Some ones in the know.