GPI – Gen 5 LT VVT Cam Phaser Limiter Kits (0 Degree)
$89.00
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- GPI Exclusive
- Designed for Gen 5 LT1 Engines
- Cam Phaser Tool
- Cam Phaser Spring Lock Tool
- Cam Phaser Limiter Plug (0 Degree)
Frequently Purchased Together
Description
Controlling the Gen 5 LT Cam
GPI has completed a huge number of cam installs on the Gen 5 LT’s, and unfortunately we’ve found the LT’s to be plagued with a cam control issue.
Because there was no product on the market to solve the issue – it was up to us to diagnose it, create the solution, test it, and then release it to market. We’ve been hard at work on this!
But first, the explanation…
…we’ve found the LT’s to be plagued with a cam control issue.
Explaination of the Cam Control Issue…
When retarding cam timing at the top of the RPM range, we noticed a frequent variation between our desired cam position and the actual. Sometimes it would even retard cam timing when not commanded to at all.
Next, we found that this behavior was becoming more and more exaggerated as the oil temps reached higher levels. This was leading to 8-10 degrees of cam timing retard, and power falling off at the top end after several pulls – which is obviously undesirable (you certainly don’t want each run of the night to be slower than the previous!).
We had successfully found the problem, but this was only the start.
It was time to build a new Cam Phaser Limiter Kit…
This was leading to 8-10 degrees of cam timing retard, and power falling off at the top end after several pulls – which is obviously undesirable (you certainly don’t want each run of the night to be slower than the previous!).
The Solution!
We are happy to announce the official release of our GPI Gen 5 LT Cam Phaser Limiter Kit that finally resolves the cam control issue. Our Phaser Limiter is designed to limit the travel of the variable valve timing system to a maximum of 4 degrees. This solution completely resolves the runaway timing train the LT’s have been plagued with.
This solution completely resolves the runaway timing train the LT’s have been plagued with.
Product Description
GPI’s Gen 5 LT Cam Phaser Limiter Kits are specially designed, computer-controlled cam gears that automatically optimize camshaft timing based on the current engine RPM and are currently used in all 2014+ GM Gen V VVT engines.
Engine oil is pressure-fed to the phasers through passageways in the cylinder heads and cams. The engine computers control solenoids that adjust this oil flow into and out of the phasers’ control chambers, creating the ability to retard the cams.
While this technology provides fuel efficiency and the ability to always be in the best position for maximum power, regardless of engine RPM, it does present some limitations when it comes to performance cams. With such a wide range of valve timing movement, there is very little piston to valve clearance, which limits you to small cam profiles with little overlap.
Gain some serious upper RPM power without sacrificing bottom end or mid-range performance with GPI Cam Phaser Kit.
Questions & Answers (5)
Customer questions & answers
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Will this work for 2023 Camaro LT1? It’s a gen 6 Camaro (same as SS these cams are often listed as compatible with) with a gen 5 lt1 in it. Ordering the gpi ss3 and need the phaser lockout.
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Q Will this work for 2023 Camaro LT1? It’s a gen 6 Camaro (same as SS these cams are often listed a...... Read more answer nowAsked by on May 3, 2026 9:39 amA Yes, from the dropdown menu you'll need to select for 22+ application
What VVT will be needed for the NFC LT 1 cam?
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A This 0* lockout
I'm looking for the correct phaser limiter for 2014 4.3 v6 I recently purchased a dod afm delete kit that included a truck norris jr cam.Also looking for correct oil pump for replacement,cause of some prior issuses, for this application.
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Q I'm looking for the correct phaser limiter for 2014 4.3 v6 I recently purchased a dod afm delete ...... Read more answer nowAsked by on November 20, 2023 6:09 pmA I have no familiarity with the v6 platform, being that you bought a btr cam I would think they would offer the appropriate phaser limiter for your application
if my phaser magnet connector breaks and I have this do I need the phaser magnet? (zero degree lock) belt b broke and took out the sensor
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Q if my phaser magnet connector breaks and I have this do I need the phaser magnet? (zero degree lo...... Read more answer nowAsked by on September 27, 2022 7:05 pmA Shouldn't need it but haven't came across this scenario
Where do i install the 0 deegree limiter block? For the 2018 5.3 L83? Is it in the same place as the other one? Or is it in a different spot?
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Q Where do i install the 0 deegree limiter block? For the 2018 5.3 L83? Is it in the same place as ...... Read more answer nowAsked by on March 29, 2021 3:15 amA Here is a good video to reference the proper location. Its the first hole clockwise from the bolt you leave in, https://www.youtube.com/watch?v=5fzzPB3oEAs
Great tool made the job easy could have came with instructions on how to use it for a guy just doing this in a driveway
First time doing this, this tool coupled with gpi instructional videos online made it simple
Great
Exactly what I needed
As described