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Old 05-09-2004, 07:52 PM
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Question on sbc roller cams and lifters

Alright, I have a few questions on this, but first, i am going to do a retro fit into an olderblock. ok, what are the major downfalls of solid rollers? how noisy are they? how frequently must they be adjusted? are they hard to adjust? Also, what length pushrods would I get with stock heads, stock deck height and stock everything else>? Also feel free to give me any comments that you would like too.

Thanks again.

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Old 05-09-2004, 07:57 PM
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they do make some noise and they do need to be adjusted.
they don't need to be adjusted all that often i would check them every 15,000.
if you are building a street rod there is no reason to have a solid roller. it is easier and more efficient to build a hyd roller.
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Old 05-09-2004, 08:00 PM
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The motor is going into a car that I plan on drag racing frequently... its a 350, bored 30, all forged internals, 202 160 heads, and I am going to be using a nitrous kit adjustable from 100-250...

Thanks again!
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Old 05-09-2004, 08:08 PM
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useualy when you build a solid roller you use +.100 longer valves, (or even longer) and when doing this you need to buy a push rod length checker to make sure you end up with the correct push rod length, a solid roller on the street isnt a bad thing but you need lifter that will oil well at lower RPM, I think some of the new roller lifters out are more suited for the street with this upgrade, the older roller lifters didnt oil well at lower RPM and were designer for sustained Higher RPM use...so they didnt last really that long on the street..

another modern upgrade is that some street solid rollers now have a cast gear, and allows you to use a cast gear..if the cam gear is steel you will have to use a bronze gear and this is bad on the street because they wear really quick and your timing is all over the place if you dont keep a fresh bronze gear in there..

so a solid roller on the street is a good thing but can end up being a real hastle if you dont think it through and buy the related solid roller "street parts"

to be honest the advent of the HDY roller is absolutely the key in a street driven high performance build...you get the best of both worlds...

if you adjust the roller properly and use stud girdles you should have to adjust the valves but say once in a while..I have had mine adjusted for 6 months with out re adjusting them...hth 2wld4u
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Old 05-10-2004, 10:17 AM
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Could you explain your comment on longer valves? I have heard this said before, but no one has ever explained it to me!

Thanks again!

Ryan
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Old 05-11-2004, 08:33 AM
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Longer valves give you the neccessary installed height if the the roller has large lobe lift.

Solid rollers are hard on valve springs on the street. Also, at idle the lifters tend to get hammered and the needle bearings get flat spots on them.

If you still want a roller on the street, I would consider running a hyd. roller cam and solid roller tappets. The opening and closing ramps are easier on these profiles. . hence you don't have to run the spring pressure. Still get the benefit of the power increase from a solid roller but less maintenance. Also do not skimp on roller lifters.

Chris
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Old 05-11-2004, 09:52 AM
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AMEN to that

Also do not skimp on roller lifters.
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