Author Topic: Small roller lifters  (Read 7471 times)

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Offline Burwell555

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Re: Small roller lifters
« Reply #15 on: April 06, 2011, 08:29:39 AM »
If you have a pencil sized hole now, I HIGHLY doubt you will get an SBC roller lifter to fit. They are pretty large in comparison, not to mention they are long.
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Offline cubcadet70

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Re: Small roller lifters
« Reply #16 on: April 06, 2011, 08:56:14 AM »
Well what do you recommend me to do?

Offline Burwell555

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Re: Small roller lifters
« Reply #17 on: April 06, 2011, 09:44:40 AM »
If you really truly want roller lifters then I believ you are stuck custom making them. At that rate its a crap shoot if you dont totally understand whats going on and they may break causing even more money to be spent...But thats the nature of the beast, if you want one off custom stuff, thats the chance you take to pave your road to innovation. Personally if it were me, I would leave solid lifters in it and go...solids are good up to about 8000-8400 if you have the right valve springs and camshaft to make it all work. Least wise that is what I have saw and done in the SBC/BBC world...there is nothing wrong with running solid lifter setup. I think I would worry about my chassis and getting weight placement right as well as making it hook with minimal wheel "spin" before I worried about the minimal gain in roller rockers....As my dad always tells me, "somethings are worth the money right off the bat some arent. Its up to you to decide wether or not something is $400 faster."
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Offline cubcadet70

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Re: Small roller lifters
« Reply #18 on: April 06, 2011, 11:08:56 AM »
Good point but I'm still making one!  :woo:

Offline George Herrin

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Re: Small roller lifters
« Reply #19 on: April 06, 2011, 11:21:54 AM »
With out having a broad head as the solid has you will rip the block apart as your pencil sized roller is pushed sideways because it will not follow the cam lobe properly. And solid lifters in these motors turn 10,000 rpm and have been for years with no ill effects. IF roller lifters were the ticket or feasible to a go fast gx390 I promise you someone would have done it already. They are not needed.
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Offline fordman21

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Re: Small roller lifters
« Reply #20 on: April 06, 2011, 12:02:52 PM »
People don't use roller lifters to go fast, they use them to take advantage of the roller profile camshaft, that offsets the added weight of the lifter, why would you want a heavy lifter in there to slow you down? The idea is to make the valve train as light as possible not the other way around, you already have the perfect lifter. I'd be more concerned about making power with the camshaft unless your intention is to install a roller camshaft.
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Offline cubcadet70

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Re: Small roller lifters
« Reply #21 on: April 06, 2011, 02:02:25 PM »
I understand about your concerns with valve train weight but this is for pulling application! :)


Offline fordman21

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Re: Small roller lifters
« Reply #22 on: April 06, 2011, 03:15:20 PM »
The application is irrelevent in this case.
Ryan Kerr  519-332-9532
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Offline Burwell555

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Re: Small roller lifters
« Reply #23 on: April 06, 2011, 04:10:41 PM »
RPM is RPM. Don't matter if its in a circle or straight line. I'm sure the tach couldn't tell ya the difference between the two.
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Offline amr5080

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Re: Small roller lifters
« Reply #24 on: April 06, 2011, 07:30:42 PM »
These hondas aren't built like the briggs and some of the other motors. They have a forged crank and very stout stock parts.
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Offline cubcadet70

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Re: Small roller lifters
« Reply #25 on: April 06, 2011, 09:09:06 PM »
True! I'm a honda fan myself so I'm trying to make it even better! I guess I gotta do some math work when I get home from vacation and I have a block that I can play with and many get a prototype lifters and try it out!