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05-16-2017, 08:58 AM
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#1 |
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Junior Member
Join Date: Mar 2008
Location: cicero n.y.
Posts: 29
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Re: Shimming Hydraulic Flat Tappet Lifters
When did NHRA alllow solid lifters on a stocker hyd ?
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Rich Freitag 1440 SS |
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05-16-2017, 09:28 AM
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#2 | |
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VIP Member
Join Date: Dec 2002
Location: Lower Dakota territory
Posts: 1,180
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Re: Shimming Hydraulic Flat Tappet Lifters
Quote:
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"That'll never work....." |
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05-16-2017, 09:32 AM
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#3 |
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Senior Member
Join Date: Feb 2012
Location: Colorado Springs Colorado/Thousand Oaks Ca
Posts: 656
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Liked 372 Times in 129 Posts
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Re: Shimming Hydraulic Flat Tappet Lifters
Shimming the hyd lifter to .010 on my Buick 315/455 was worth 12 HP and carried the power out past the peak much better and the engine was happier. Spring pressure was 170/350. I opted to stay with the hyd lifter only because it was living nicely with my cam, if that wasn't the case I would be running a solid lifter.
Last edited by HP HUNTER; 05-16-2017 at 09:35 AM. |
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05-16-2017, 10:35 AM
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#4 |
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VIP Member
Join Date: Oct 2008
Posts: 2,128
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Re: Shimming Hydraulic Flat Tappet Lifters
I run GM Rollers Lifters in my LT1
What advantage do Short Travel Roller Lifters they have over the GM Roller Lifters? d |
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05-17-2017, 02:07 PM
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#5 |
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Member
Join Date: Jan 2005
Location: Lake Tapps, Washington
Posts: 137
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Re: Shimming Hydraulic Flat Tappet Lifters
What advantage do Short Travel Roller Lifters they have over the GM Roller Lifters?
About 30HP, Maybe more depending on your tenacity. |
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05-19-2017, 05:16 PM
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#6 |
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Senior Member
Join Date: Jul 2014
Posts: 572
Likes: 39
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Re: Shimming Hydraulic Flat Tappet Lifters
What they're saying, no loss of lift or duration with shimming. Now, just use a solid lifter
Mike |
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05-19-2017, 06:44 PM
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#7 |
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Senior Member
Join Date: Feb 2002
Location: Southeast Michigan
Posts: 909
Likes: 70
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Re: Shimming Hydraulic Flat Tappet Lifters
Converting from a hydraulic lifter to a solid sounds good , but how does that work ? Wouldn't you have to develop a new camshaft ? Wouldn't you lose some lift due to whatever valve lash you use ? Are there some stocker profiles out there that are solid but are designed for very tight lash , say under .012" . Just asking , I am interested !
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