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Anyone using MRL big block solid roller lifters? #1558328 01/03/14 06:22 PM 01/03/14 06:22 PM
Joined: Aug 2006 Posts: 610 long time lurker, short time p... P PorkyPig OP mopar
PorkyPig OP mopar P Joined: Aug 2006 Posts: 610 long time lurker, short time p...	I came across some posts on other Mopar boards about solid roller lifter that MRL Performance came out with maybe a year ago. Anyone here use them in big blocks, in particular blocks with unbushed lifter bores? MRL also offers two different types, one with a standard .750 wheel and an upgrade that has a .815". Is there really a performance benefit to a larger wheel or is it just better durability by spreading the load out a little more?

Re: Anyone using MRL big block solid roller lifters? [Re: PorkyPig] #1558329 01/03/14 09:06 PM 01/03/14 09:06 PM
Joined: May 2006 Posts: 1,260 New Mexico A Adobedude pro stock
Adobedude pro stock A Joined: May 2006 Posts: 1,260 New Mexico	I just ordered the small block version. It was explained to me the bigger roller will distribute the weight better but the smaller roller will work if the valve train is set up properly...I went for the smaller roller. I'm cheap. 2001 Dodge Dakota 408 All Motor 11.27 @ 117.83 mph 2017 NM Mopar Challenge Series Champion.

Re: Anyone using MRL big block solid roller lifters? [Re: PorkyPig] #1558330 01/03/14 11:06 PM 01/03/14 11:06 PM
Joined: Jan 2003 Posts: 9,996 Frostbitefalls MN (Rocky&Bullw... gregsdart master
gregsdart master Joined: Jan 2003 Posts: 9,996 Frostbitefalls MN (Rocky&Bullw...	Check and see if the roller wheel you want will work with your cam. Different diameters change the rate of lift and may be too fast or too slow for best performance. 8..603 156 mph best, 2905 lbs 549, indy 572-13, alky

Re: Anyone using MRL big block solid roller lifters? [Re: gregsdart] #1558331 01/04/14 02:53 AM 01/04/14 02:53 AM
Joined: Feb 2003 Posts: 347 Kewaskum, WI K Kelob_pie enthusiast
Kelob_pie enthusiast K Joined: Feb 2003 Posts: 347 Kewaskum, WI	Yes, I saw these as well. I will be in the market later this year for a set of rollers, and the advertising sure seems good on these. Does anyone know who manufactures these lifters?

Re: Anyone using MRL big block solid roller lifters? [Re: PorkyPig] #1558332 01/05/14 02:31 PM 01/05/14 02:31 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH Taking time off to work on my car
BradH Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	I'd like to see a pic comparing the two versions of big-block lifters. I Googled around some after seeing this topic and found one for the small-block lifters, but the big-block lifter pics look a bit different than the small-block stuff (not just the link bars).

Re: Anyone using MRL big block solid roller lifters? [Re: Kelob_pie] #1558333 01/05/14 06:08 PM 01/05/14 06:08 PM
Joined: Feb 2011 Posts: 4,302 Nebraska 72Swinger master
72Swinger master Joined: Feb 2011 Posts: 4,302 Nebraska	Quote: Yes, I saw these as well. I will be in the market later this year for a set of rollers, and the advertising sure seems good on these. Does anyone know who manufactures these lifters? Mike told me they're made here by a couple of ex-crane engineers. IIRC they retired down in Florida and got bored lol. Mopar to the bone!!!

Re: Anyone using MRL big block solid roller lifters? [Re: gregsdart] #1558334 01/05/14 06:15 PM 01/05/14 06:15 PM
Joined: Jan 2003 Posts: 1,142 Central New York slippery440 Crybaby440
slippery440 Crybaby440 Joined: Jan 2003 Posts: 1,142 Central New York	Quote: Check and see if the roller wheel you want will work with your cam. Different diameters change the rate of lift and may be too fast or too slow for best performance. Explain please. Makes sense??? If the MODS did their job I would not be hitting the notify MOD button. LOL

Re: Anyone using MRL big block solid roller lifters? [Re: slippery440] #1558335 01/05/14 07:00 PM 01/05/14 07:00 PM
Joined: Apr 2009 Posts: 3,415 Toronto M mshred master
mshred master M Joined: Apr 2009 Posts: 3,415 Toronto	I have spoken with Mike about the small block ones...he explained to me the cheaper ones (pro sports) have a narrower roller and were only good for up to 650lbs open spring pressure...the more expensive ones (pro plus) use a wider wheel and can take more spring pressure, and also have a lightened body...Price difference is $480 compared to $620 I think it was? I am going to order a set, just have to find the time to get the old valvesprings off of my heads, decide what springs I am going to use and see the pressures before I choose which ones I will go with.

Re: Anyone using MRL big block solid roller lifters? [Re: slippery440] #1558336 01/06/14 04:26 AM 01/06/14 04:26 AM
Joined: Nov 2004 Posts: 6,890 North Alabama M Monte_Smith master
Monte_Smith master M Joined: Nov 2004 Posts: 6,890 North Alabama	Quote: Quote: Check and see if the roller wheel you want will work with your cam. Different diameters change the rate of lift and may be too fast or too slow for best performance. Explain please. Makes sense??? Think of it just like rollout on a tire. Now approach a bump in the road with a really tall tire or a really short tire. Does that change the way the car "feels" across the bump........yes sir, big time. Monte

Re: Anyone using MRL big block solid roller lifters? [Re: Monte_Smith] #1558337 01/06/14 01:39 PM 01/06/14 01:39 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH Taking time off to work on my car
BradH Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Quote: Quote: Quote: Check and see if the roller wheel you want will work with your cam. Different diameters change the rate of lift and may be too fast or too slow for best performance. Explain please. Makes sense??? Think of it just like rollout on a tire. Now approach a bump in the road with a really tall tire or a really short tire. Does that change the way the car "feels" across the bump........yes sir, big time. Monte I'll throw this in,too: http://www.cranecams.com/bulletins_listview.php?s_id=9

Re: Anyone using MRL big block solid roller lifters? [Re: BradH] #1558338 01/06/14 02:40 PM 01/06/14 02:40 PM
Joined: Jan 2003 Posts: 1,142 Central New York slippery440 Crybaby440
slippery440 Crybaby440 Joined: Jan 2003 Posts: 1,142 Central New York	Thank -You Monte and Brad. I learned something today. Never ever thought about roller size and the efects it causes to the cam. If the MODS did their job I would not be hitting the notify MOD button. LOL

Re: Anyone using MRL big block solid roller lifters? [Re: gregsdart] #1558339 01/06/14 03:09 PM 01/06/14 03:09 PM
Joined: Feb 2005 Posts: 370 Real North Cal. 6 66er enthusiast
66er enthusiast 6 Joined: Feb 2005 Posts: 370 Real North Cal.	Quote: Check and see if the roller wheel you want will work with your cam. Different diameters change the rate of lift and may be too fast or too slow for best performance. I just recieved a set of his Pro Sport lifter. They look pretty good the machining is great. I decided agaist the pros because my piston to valve clearance is on the tight side now(int-.060/ex-.090)and I didn't want to loose any. I don't think the roller on the Pros are wider, just a larger diameter with larger diameter roller bearings. The box said BAM Products. The engineers name is Brad Miller. Hopefully they hold up well. I usually don't like to be a guinea pig, but the price is great and they have the good features.

Re: Anyone using MRL big block solid roller lifters? [Re: gregsdart] #1558340 01/09/14 07:44 PM 01/09/14 07:44 PM
Joined: Aug 2006 Posts: 610 long time lurker, short time p... P PorkyPig OP mopar
PorkyPig OP mopar P Joined: Aug 2006 Posts: 610 long time lurker, short time p...	Quote: Check and see if the roller wheel you want will work with your cam. Different diameters change the rate of lift and may be too fast or too slow for best performance. Cam company says my lobes will work with .750 to .825 roller wheels.

Re: Anyone using MRL big block solid roller lifters? [Re: PorkyPig] #1558341 01/12/14 06:57 PM 01/12/14 06:57 PM
Joined: Feb 2003 Posts: 1,730 Red Deer, Alberta B bill_greenwood top fuel
bill_greenwood top fuel B Joined: Feb 2003 Posts: 1,730 Red Deer, Alberta	Can the MRL's be used in a small block without the bores being bushed or the lifter galley oil passage being blocked off?

Re: Anyone using MRL big block solid roller lifters? [Re: bill_greenwood] #1558342 01/14/14 01:07 PM 01/14/14 01:07 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH Taking time off to work on my car
BradH Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Quote: Can the MRL's be used in a small block without the bores being bushed or the lifter galley oil passage being blocked off? If you're still looking for the answer, you're better off contacting MRL directly.

Re: Anyone using MRL big block solid roller lifters? [Re: BradH] #1558343 01/14/14 01:32 PM 01/14/14 01:32 PM
Joined: Aug 2006 Posts: 610 long time lurker, short time p... P PorkyPig OP mopar
PorkyPig OP mopar P Joined: Aug 2006 Posts: 610 long time lurker, short time p...	Quote: Quote: Can the MRL's be used in a small block without the bores being bushed or the lifter galley oil passage being blocked off? If you're still looking for the answer, you're better off contacting MRL directly. x2

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