If my fuzzy memory rings true
In this book

https://play.google.com/store/books/deta...CFcEQPwodN8kMsw

https://www.themotorbookstore.com/how-to...AiABEgIt8_D_BwE

There is info on lighter, improved durability, and lower friction, hydraulic roller lifters that were created for Viper Aluminum V10s but can be used in sb v8s, as can slightly longer V10 con rods that give tighter quench.

Later year Viper V10s went even further and changed to smaller diameter, even lighter, roller lifter designs.

Willem Weertman wrote in his book Chrysler Engines that the earliest iron and aluminum V10s used Magnum 5.9 V8 pistons for cost reasons. In the 1995 Ram pickup FSM the 5.9 Magnum v8 piston drawing are wrong, but the iron V10 chapter has correct piston drawings and specs.