Can someone explain what a roller cam is? more hp?


I have an 88 305 tpi auto. I want to swap engines. I see the one below but it says non roller cam. Yet the power output is pretty goot. Cant I still use a non roller cam motor with the tpi setup?


http://cgi.ebay.com/ebaymotors/350-5...36743690QQrdZ1

 

Longevity,

(usally better power) under the curve.

and break in,

a roller cam trounces a flat tappet on the street(talking smaller daily driver cams here)

I prefer dealing with roller cams, not a lot of sense going back to flat tappet other than cost.

I would recommend staying roller.

Flat tappet cam is just the that, the lifter are basically flat on the bottom and follow the cam. A roller lifter has a wheel on the bottom of the lifter and follows the cam as it spins. Hit up lifters on google or hit crane or comp cam website for pics an in depth info

later
Jeremy

 

Stick with a roller, you have several reasons why, one is you have less friction with a roller set up, two you gain more lift per degree of cam duration, three is it will last longer and run cooler than a flat tappet. To me there is nothing wrong with a flat tappet but given an option I would always go with a roller.

 

you've got roller, stick w/ it. all the responses are correct. Better power under the curve, better economy, better longevity, better throttle response...

 

Thanks for clarifying