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Cadillac & LS7 lifters

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Old Feb 10, 2010 | 06:33 PM
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Default Cadillac & LS7 lifters

Are they the same ? .
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Old Feb 10, 2010 | 06:37 PM
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Originally Posted by 2079
Are they the same ? .
Yes, and no. As far as I know, the "Caddy" lifters you're thinking of are from the C5/6R racing program, and aren't the same PN as std. replacement LS1,2,6,and 7.
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Old Feb 10, 2010 | 07:08 PM
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No, they're not.

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Old Feb 10, 2010 | 10:17 PM
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what is the difference? is one better than the other?
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Old Feb 11, 2010 | 01:18 AM
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depends on your mods and intended use. IF I was doing a lot of road racing events Id probably go with the caddy lifters. LS7 are fine for probably 80- 90 % of builds.
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Old Feb 11, 2010 | 04:35 AM
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LS7 Lifter



Caddie Lifter. See the groove.

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Old Feb 11, 2010 | 06:15 AM
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I believe the Caddy lifter also has some ceramic internal components for weight reduction. Read that on another board.
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Old Feb 11, 2010 | 08:01 AM
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do the Caddys require a different pushrod length?
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Old Feb 11, 2010 | 10:11 AM
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Default LS7/Caddy lifters

Be careful on your application.

The Caddy lifter was designed to work under certain applications (i.e. WC type racing with smaller camshafts and single beehive springs). There have been some issues when using with larger camshafts (above .600 lift and double springs).

There is some additional info regarding this if you do a search on LS1tech forum. Most builders using larger cams are using Morel lifters.
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Old Feb 11, 2010 | 11:31 AM
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I've had the "caddie" racing lifters in my motor since 2007. No issues, and I've had the PRs out lately, and everything, including swipe pattern looks good. I have early Trickflow heads with 7.9" PRs.
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