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Kirkham Motorsports

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  #1 (permalink)  
Old 08-25-2008, 07:51 AM
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Default Lifter Question

In another thread, you mentioned using high rpm hydraulic roller lifters that extended the rpm range to 6,800 or so. Can you give me more information on these?
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Old 09-04-2008, 08:33 PM
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Default Lifters

We take the Ford racing hydraulic roller lifter and take it apart, then do some work on the parts on the inside to make the lifter rev higher. We see about 500 to 600 higher rpms with these modifications. It runs 100.00 extra to do the work to a set of 120.00 lifters. Thanks, Keith Craft
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Old 09-07-2008, 06:55 PM
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I'v never heard of this. I won't be so crass as to ask what mods you make. But I will ask........ how do I order a set?
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Old 09-10-2008, 01:18 AM
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Default Lifters

Just give us a call at 870-246-7460 to order you a set of these lifters. We modify the internals and use different clips that retain the lifter plunger. We have the parts made to do this with. Thanks, Keith Craft
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Old 09-10-2008, 04:01 PM
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Cool! I'll call tomorrow and order these.
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Old 02-23-2010, 08:29 AM
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Default Lifter Question

BUT, remember to change to 7.350 pushrod length because the LS7 lifter is LONGER than the stock lifter......you will need to make up for this difference....
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Old 02-23-2010, 10:00 AM
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Default Lifters

We do a lifter in house that we modify to get extra rpms out of the engine. They run 240.00 for a complete set. Things like valve weight, spring used, retainers and locks all have a affect on how high the engine will go.

Thanks, Keith
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Old 02-23-2010, 10:09 AM
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Quote:
Originally Posted by ponvire09 View Post
BUT, remember to change to 7.350 pushrod length because the LS7 lifter is LONGER than the stock lifter......you will need to make up for this difference....
LS7? You don't ned a differant length push rod, and Keith modifies a Ford lifter.

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Originally Posted by Keithc8 View Post
We do a lifter in house that we modify to get extra rpms out of the engine. They run 240.00 for a complete set. Things like valve weight, spring used, retainers and locks all have a affect on how high the engine will go.

Thanks, Keith
They work well. I used them all year, and kept the rev limiter at 6,500. I had them out for a cam change this winter. They still look almost new.
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