Do FI apps require different lifters than NA?

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Oct 23, 2009 | 10:57 AM

FI402Z

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Do FI apps require different lifters than NA?

Could not find an exact thread on this, so basically will an LS7 lifter hold up in the 800rwhp range? I was going to go with the GMPP (CTS-VR) lifters but had read alot about them failing. THANKS!

Oct 23, 2009 | 11:49 AM

The Fugitive

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From: Reno, NV

Quote:

Originally Posted by FI402Z

Could not find an exact thread on this, so basically will an LS7 lifter hold up in the 800rwhp range? I was going to go with the GMPP (CTS-VR) lifters but had read alot about them failing. THANKS!

The LS7 lifters would do alright many people use them and i am one of them. The GMPP does sound like a stronger lifter but I have no experience with them because i am still using the LS7's. Try calling Speedinc or EPP and see what they say.

Oct 23, 2009 | 12:04 PM

black98ws6ta

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From: louisville,ky

ls7 lifters will do fine.

Last edited by black98ws6ta; Oct 23, 2009 at 12:45 PM.

Oct 23, 2009 | 12:26 PM

pwrtrip75

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I have the stock 5.3 lifters in mine. Work just great and have for 3 years. I would think your cam and springs would have more to do with it, FI wouldnt.