Thread: street solid roller cam

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Thanks, Pat. I don't want to go higher than .547 lift, as I know I have piston clearance with that figure.
I've been reading some scary stuff online about solid rollers not lasting on the street. Some say you can't let the engine idle below 1000rpm or the lobes could go bad with a solid roller! Any comments??
Chris

Originally Posted by grifo7

Thanks, Pat. I don't want to go higher than .547 lift, as I know I have piston clearance with that figure.
I've been reading some scary stuff online about solid rollers not lasting on the street. Some say you can't let the engine idle below 1000rpm or the lobes could go bad with a solid roller! Any comments??
Chris

them cam s i gave you numbers on fit the stock speed pro piston with a stock head and 219 valve .there s is more to it then just lift i have HYD 620 rollers with 238 /246 @050 on 112 clear with PV but pull it in on a 108 and 246/252 then it may not fit on your pistons but that cam in a solid roller did clear on a speed pro hiper 496 shelf piston. i do not think i fly cut them . yep sure i will add my two cents on lifters you are talking low lift and low spring lbs . go with a good roller like a hippo crower .PBM. erson .howards . crane pro .ANY THING BUT COMP .there POS seen them fail faster then most. they may have it work out now you feel lucky ?? .all the lifters that are hippo but crowers are made by the same company and are very good they will last for what your doing .you can put abit more lift to it. 600 with running lash will be about 574 that is as small as i would go. your taking hi rpm bbc. they like the valves to open hell we are driving 740+ lift rollers on the street nothing like a big block getting AIR

Thanks, Pat - food for thought! I had forgotten that the timing of valve opening/closing events can affect clearance with the piston, not just valve lift itself. I have forged TRW L2399F pistons with .095" (13.8cc) dome on Manley H-beam rods.
A couple of questions - what do you mean by hippo roller?? Do you mean high performance? Would you advise a steel billet cam and the best roller lifters I can find? I've heard about a company that makes roller lifters without needle roller bearings, just plain bearings like on a crankshaft.

Originally Posted by grifo7

Thanks, Pat - food for thought! I had forgotten that the timing of valve opening/closing events can affect clearance with the piston, not just valve lift itself. I have forged TRW L2399F pistons with .095" (13.8cc) dome on Manley H-beam rods.
A couple of questions - what do you mean by hippo roller?? Do you mean high performance? Would you advise a steel billet cam and the best roller lifters I can find? I've heard about a company that makes roller lifters without needle roller bearings, just plain bearings like on a crankshaft.

hippo hi pressure pin oiling .helps put more oil on the roller pins. the ones with no roller bearings are made by isky all solid rollers cams i have seen are steel cores .the lifters i listed have roller s bearings and them are the ones that i have used with hippo you get more oil were you need it

Thanks for explaining that, Pat. I've just looked at Lunati pressure-fed solid rollers and they cost quite a few more $$ - oh well, c'est la vie!

Another question (sorry!) - what's your feeling about dual-pattern as opposed to single-pattern cams? I've read that dual pattern work better to compensate for a weaker-flowing exhaust side. I've got Edelbrock Performer RPM heads and pretty free-flowing equal-length 4 into one headers and 3" main pipes with pretty unrestrictive mufflers. Would my engine benefit from a single-pattern cam, do you think?
Lunati have a solid-lifter cam 304/304 (244/244 @ .050") 110 lobe centres and .595/.595" lift, which looks interesting. Part #50200LUN.
Chris