I Was wanting to know if a 302 with rollor lifters is better then a 302 without roller lifters. If the rest of the engine is done up the same way???
The answer is yes and no. If you are building a motor to run 6500rpm max. Hyd roller is the way to go. IMO. If you want to rev to the moon a solid lifter or solid roller cam would be the ticket. If you just want to build a good engine on a budget hyd flat tappet will get it done just fine too. Hyd roller have a broader torque curve due to the ramp profile pertaining to the lobes. that a non roller just can't compete with. Torque is good
On a mild motor you wont see a difference but ,the more serious the piece is the more difference you will see.I run a hyd roller in mine because i dont wanna screw with the valve lash but i have turned it 7800 with no valve float.
well the engine I am getting done has aluminum Head, roller rokers, 347 Stroker Kit,Aluminum intake, and some other stuff. But It has roller lifters is that good???
If built properly YES!!!!! Good valve train compents. Good Springs, 1 piece hardend push rods, I like the crane ones(they make custom fit to order) the roller rockers are a nice touch too!!! Sounds like your motor should be a runner.
I wouldnt go through all the expense of building a 347 and then not put in a roller cam. Considering my experience with flat tappet, I wont run anything other than roller again.
Yeah, roller lifters are the ticket. If you look at a flat tappet lifter and think about how it rides on the cam lobes, its really quite amazing that ALL flat tappet cams dont get wiped out by the lifters.
i always thought roller lifters were better in alot of ways. like friction for example. it reduces alot of friction as due "roller" rocker arms. not to mention i think that a roller lifter engine runs smoother and has a slightly smoother idle, not to mention you can run a slightly larger cam profile in roller applicarions. i have a roller conversion sitting in my garage going into my 71 as soon as i get my parts car here. and once i have my roller cam and lifters into place and get the engine running nicely im going to spring for some roller rockers. but to some up my rambling, i like roller cams and i think they due justice. that be my opinion
