|
Roller rockers?
Serve a couple of purposes:
1. Less side load on valves, as tip "rolls" across valve stem head rather than slides - lessens wear on guides and lessens mushrooming of valve stem head.
2. If rocker also has needle bearings, prevents galling of rocker shaft under high spring loads.
Other than that, they're just expensive (but pretty)!
__________________
"Inventor - Blue Flame 914 Seat Heater"
"Yellow Rusty Cars Are Faster"
_____________________________
'70 2.5 (I'll never finish it - Somewhere over the rainbow.....,)
'73 2.0 (Just Not The Same)
'74 2.0 (Heartless & Lungless)
|