Does a 1991 Chevy 350 have roller rockers?

Answer 1

They are rocker arms that go under the valve covers and make the exhaust and intake valves open. They have small rollers that have little needle bearings in them that reduce engine friction and allow the valve train to work in a smoother maner with better performance.

Answer 2

Probably not, unless they were added later. It should have roller lifters however.

Answer 3

No it did not. Gm started using roller cams from late 1995 and up in all there engines.