roller lifters vs plain solid
 

what will produce more hp? sbc 350, 30 over. a roller cam or plain solid lifter cam?

Roller

X2

But which one will produce most hp / $ :D

Right here my friend, any day of the week.

http://img32.picoodle.com/img/img32/...tm_8c3b514.jpg

Will run with any roller on the market for the money invested.
JMO

Zip.

Theres as much increase from a solid to a roller as there is from a hydraulic to a solid lift cam. Its one of the best $$ per HP that you can spend. The reason it is, is because the quicker you can close the intake valve, the more hp youll make. On a solid lift cam, if your ramp speed where as quick as a roller your lifters would fly off the cam. Because you can't put the spring pressure on a solid to keep the lifter on the cam, that you can on a roller. If you did, you would have to much heat lifter to cam and lose a lobe. The roller allows you to have more ramp speed and more spring pressure for more Horsepower.

cams
 

what i should have asked is a hydraulic flat tappit to a solid flat tappit cam? i have a comp cam 292 501 lift and was thinking of going to a solid cam. what are the pro and cons.besides adjusting valve lash?

you always stand the chance of floating a valve with hydraulic lifters if your wanting to turn it up (high rpm) as a drag car.....i personally have floated them on the street ( back in the day)..
if you are going to be seeing more street use then strip then hydraulic roller hands down ( IMO)..If its gonna be drag only ..OR you plan on turning it up (rpm) then go the other way....

oh yeah..i got a solid flat tappet in a 406ci....about a 520 lift...very quick..lots of bottom end.


also remember if you go solid flat tappet you need to break in cam the old school way.......( imo)

There is no way with the parts available today that I would run anything but a roller in a high performance motor. Street or strip. No worries about oils, breakin, etc. Just my opinion.

Curtis

roller will produce most hp and will also give best idle quality, happy holidays