i built 2x stroker 400's in quick succession last year. 1x used the Eagle rod with the L19 bolts, the other used Molnar Rods. The 8x Molnar rods weighed 1kg less than the Eagle Rods in just rod weight alone. Both motors are running real strong & the Eagle rods looked fine to me, but in future i'll be going the Molnar route. Can't beat that kind of weight saving on a engine i'm going to beat on.