Roller engines

[silv01]

I was reading in the old c/k pages and they said something bout the new gen 3 engines are better than old 350's because they are roller engines.. what the hell does that mean?

[pnewcomb1]

Hydraulic roller lifters.

[NoRiceHere01]

roller lifters and i believe roller rocker arms.in case u have no idea what that means basically the point at which the cam lobe hits the lifter has a small roller to reduce friction.thats pretty much as simple as it can be explained. thats not the only difference between the engines tho. theyre completely different engines.

[silv01]

ok.. what's different bout these engines that makes them so quiet?

[Slowprocess]

Originally Posted by silv01

ok.. what's different bout these engines that makes them so quiet?

Define quiet.......

http://www.woracing.com/truck/hosted...tout%20vid.mpg

[redwheeler]

they dont have a solid pece of steel slapping another one it rolls across instead

[silv01]

Instead of starting a new thread i figured i would ask here. I was just talkin bout quiet in general. I have a 5.3 and i cant hardly hear it when it idles. what did they do to make them so quiet?

[NoRiceHere01]

thats just the stupid quiet exhaust on em

[jethro_3]

The Roller Rocker is in the pivot point not the pushrod to rocker or the rrocker to valve. Have done 2 cams recently and both are the same.

[silverado122775]

Originally Posted by NoRiceHere01

thats just the stupid quiet exhaust on em

Exactly.. they are not so quiet when you take the muffler off. LOL

[Sonny01]

I put a Borland Turbo muffler on my 5.3 and boy does it sound better. Not real loud but just better. I think the MPG went up a little also.