The GR Yaris and GR Corolla run floating rockers held in place only by valve spring pressure. Our retainers are designed to catch the rocker if that pressure is lost for a split second.

<p>The Toyota G16E-GTS in the GR Yaris and GR Corolla uses floating roller rockers. Like the FA20 in the Toyota 86, each rocker is held in place only by valve spring pressure.</p>
<p>When the G16E-GTS first came out, we inspected the valvetrain and recognised the same weak point we&apos;d already addressed on the FA20. We&apos;ve seen that rocker design fail, so we developed a retainer specifically for the G16E-GTS.</p>
<h3 id="how-it-works">How it works</h3>
<p>Our lash adjusters (or solid lifters) have a retaining groove. A heat-treated high-carbon steel clip attaches to the rocker and sits in that groove. In normal running, the clip doesn&apos;t affect the operation of the rocker. However, if a valve floats, bounces or sticks and the rocker loses spring pressure for a split second, the clip is designed to catch the rocker and hold it in place until valve spring pressure is regained. This massively reduces the risk of it walking off.</p>
<h3 id="is-this-a-fix-for-valve-float">Is this a fix for valve float?</h3>
<p>No. It&apos;s a safety net. You still need valve springs, a cam and a tune that suit your build. The retainer adds a layer of reliability for the moments when things get lively: a missed shift, a hard limiter hit, or a misfire. A severe over-rev can still break the clips.</p>
<p>It&apos;s not a new idea either. Higher-end engines with this style of rocker, such as the BMW B58 in the GR Supra and the Lexus 2UR-GSE V8 in the Lexus LC500, use rocker retention from the factory.</p>
<p>Choosing a kit? See <strong>G16E-GTS: hydraulic lash adjusters or solid lifters?</strong></p>

Why does the G16E-GTS need Rocker Retainers?

Both G16E-GTS kits fit the Toyota GR Yaris (XP210, 2020 on) and GR Corolla (GZEA14, 2022 on). The hydraulic kit is a drop-in replacement for factory lash adjusters 13750-70020.

<p>Both of our G16E-GTS kits fit every car with the G16E-GTS engine:</p><table><thead><tr><th>Make</th><th>Model</th><th>Chassis</th><th>Years</th></tr></thead><tbody><tr><td>Toyota</td><td>GR Yaris</td><td>XP210</td><td>2020 on</td></tr><tr><td>Toyota</td><td>GR Corolla</td><td>GZEA14</td><td>2022 on</td></tr></tbody></table><h3 id="hydraulic-lash-adjusters-with-rocker-retainers"><br>Hydraulic Lash Adjusters with Rocker Retainers</h3><ul><li>A drop-in replacement for the factory hydraulic lash adjusters (Toyota part 13750-70020)</li><li>Includes a retainer clip for each rocker</li><li>Works with the factory camshafts and with aftermarket cams designed for hydraulic lifters</li></ul><h3 id="solid-pivot-conversion-with-rocker-retainers">Solid Pivot Conversion with Rocker Retainers</h3><ul><li>12 x Denstoj G16E-GTS solid lifters (billet alloy steel, heat-treated)</li><li>12 x Denstoj G16E-GTS Rocker Retainer clips (high-carbon steel, heat-treated)</li><li>Not a drop-in part. It needs a solid lifter camshaft and machine shop setup.</li></ul><p>Both kits reuse your factory rocker arms.</p><p>Not sure which one suits your build? See <strong>G16E-GTS: hydraulic lash adjusters or solid lifters?</strong></p>

Which GR Yaris and GR Corolla models do the G16E-GTS kits fit?

Hydraulic lash adjusters suit stock and mildly tuned GR Yaris and GR Corolla engines. Solid lifters are for high-RPM, 500+ hp builds and need a solid lifter camshaft and machine shop setup.

<p>Both of our G16E-GTS kits (GR Yaris and GR Corolla) include Rocker Retainer clips. The difference is the lifter.</p>
<h3 id="hydraulic-lash-adjusters-with-rocker-retainers">Hydraulic Lash Adjusters with Rocker Retainers</h3>
<p><strong>Best for:</strong> stock or mildly tuned engines, daily drivers, and cams designed for hydraulic lifters (for example Kelford EZ-TYPE, Type 1 and Stage 1).</p>
<ul>
<li>A drop-in replacement for the factory lash adjusters (13750-70020), with a retaining groove for the clip</li>
<li>No lash to set, because they self-adjust with oil pressure</li>
<li>Low maintenance</li>
</ul>
<h3 id="solid-pivot-conversion-with-rocker-retainers">Solid Pivot Conversion with Rocker Retainers</h3>
<p><strong>Best for:</strong> high-RPM race and track builds, especially 500+ hp engines running a Kelford Stage 2 solid camshaft.</p>
<ul>
<li>Billet alloy steel, heat-treated</li>
<li>More precise valve control at high RPM, with no lifter pump-up or bleed-down</li>
<li><strong>Needs a camshaft designed for solid lifters</strong>, such as Kelford S267-A or S267-B. Hydraulic cam profiles don&apos;t have the lash ramp solid lifters need and can cause valvetrain failure.</li>
<li><strong>Not a drop-in part.</strong> It needs professional setup by a machine shop to get lash within spec.</li>
</ul>
<h3 id="will-solid-lifters-make-more-power">Will solid lifters make more power?</h3>
<p>Not on their own. They improve valve control at high RPM, which lets a properly built engine rev higher safely. Any power gain comes from the cam, tune and supporting mods.</p>
<p>Not sure which suits your build? Email <a href="mailto:sales@denstoj.com.au">sales@denstoj.com.au</a> with your turbo, cam, springs, fuel and power target.</p>

G16E-GTS: hydraulic lash adjusters or solid lifters?

Match the cam to your lifters. Kelford 267-A suits hydraulic lash adjusters. S267-A and S267-B are solid lifter cams. All three need the Kelford KVS264 spring kit. Email sales@ to order.

<p>The most important rule: <strong>the camshaft must match your lifters</strong>. Cams for hydraulic lash adjusters don&apos;t have the lash ramp solid lifters need, and running the wrong combination can cause valvetrain failure.</p><p>These Kelford Cams camshafts are matched to our G16E-GTS kits. To order, email <a href="mailto:sales@denstoj.com.au">sales@denstoj.com.au</a>.</p><table><thead><tr><th>Camshaft</th><th>Lifters</th><th>Suits</th></tr></thead><tbody><tr><td>Kelford Stage 1 (267-A)</td><td>Hydraulic lash adjusters</td><td>48 to 54 mm turbo, 350 to 500 hp, up to 8,000 rpm and 30 psi</td></tr><tr><td>Kelford Stage 1 Solid (S267-A)</td><td>Denstoj solid lifters</td><td>48 to 54 mm turbo, 350 to 500 hp, up to 8,000 rpm and 30 psi</td></tr><tr><td>Kelford Stage 2 Solid (S267-B)</td><td>Denstoj solid lifters</td><td>54 to 64 mm turbo, 500 to 700 hp, great with E85</td></tr></tbody></table><p><br>The &quot;S&quot; at the start of a Kelford part number means the cam is designed for solid lifters.</p><h3 id="valve-springs">Valve springs</h3><p>All three cams need an upgraded valve spring. The <strong>Kelford KVS264</strong> kit is a beehive spring set with titanium retainers, designed for the G16E-GTS:</p><ul><li>Intake: 100 lb seat pressure at 35.0 mm installed height, 198 lb at 12.0 mm lift</li><li>Exhaust: 87 lb seat pressure at 36.7 mm installed height, 178 lb at 11.5 mm lift</li><li>Coil bind height: 22.0 mm</li><li>Remove the factory spring base and fit the supplied base</li></ul><h3 id="keeping-the-factory-cams">Keeping the factory cams?</h3><p>If the car is otherwise stock, keep the original valve springs rather than adding load to the valvetrain. Our Hydraulic Lash Adjusters with Rocker Retainers are a drop-in fit with the factory cams and springs, and with milder cams like the Kelford EZ-TYPE or Type 1.</p><p>Want a second opinion on your combination? Email <a href="mailto:sales@denstoj.com.au">sales@denstoj.com.au</a> with your turbo, fuel, power target and how you use the car.</p>

Which camshaft and valve springs should I run on my G16E-GTS?

The engine stays in the car. Drop the timing, remove the camshafts, soak the lash adjusters in clean engine oil for 30-60 minutes, and allow 4 to 6 hours. No shimming is needed.

<p>These steps are for the <strong>Hydraulic Lash Adjusters with Rocker Retainers</strong> kit on the GR Yaris and GR Corolla.</p>
<h3 id="before-you-start">Before you start</h3>
<ul>
<li><strong>The engine stays in the car.</strong> We recommend dropping the timing and removing the camshafts. Fitting with the cams in is possible, but it&apos;s much harder.</li>
<li>Allow <strong>4 to 6 hours</strong>.</li>
<li>Watch the <a href="https://denstoj.com.au/pages/rocker-retainer-install-videos#g16e">G16E-GTS install video</a> first.</li>
</ul>
<h3 id="prepare-the-lash-adjusters">Prepare the lash adjusters</h3>
<p>We recommend soaking the hydraulic lash adjusters in clean engine oil for 30-60 minutes before installation. Do not insert any objects into the lash adjusters, as this can damage the internal one-way valve.</p>
<h3 id="while-its-apart">While it&apos;s apart</h3>
<ul>
<li>Keep track of the valve caps on top of each valve stem.</li>
<li>Fit a clip to each rocker so it locates in the groove of the new lash adjuster.</li>
<li>Refit the tappet cover seals and gaskets, or the rockers can suffer oil loss.</li>
</ul>
<h3 id="do-i-need-to-shim-anything">Do I need to shim anything?</h3>
<p>No. Hydraulic lash adjusters set their own clearance under oil pressure. Your factory rocker arms (Toyota 13801-25010) are reused unchanged.</p>
<h3 id="solid-pivot-conversion-kit">Solid Pivot Conversion kit</h3>
<p>The solid lifter kit isn&apos;t a drop-in part. It needs a solid lifter camshaft and professional lash setup by a machine shop. See <strong>G16E-GTS: hydraulic lash adjusters or solid lifters?</strong></p>
<p>Something doesn&apos;t look right? Stop before running the engine and email <a href="mailto:support@denstoj.com.au">support@denstoj.com.au</a> with photos and your order number.</p>
<p>Warranty covers parts installed correctly by a qualified tradesperson. See <strong>What does your warranty cover?</strong></p>

How do I install the G16E-GTS kit?

denstoj

Hydraulic and solid lifter kits for the G16E-GTS: fitment, camshafts, valve springs and installation.

Toyota GR Yaris/GR Corolla (G16E-GTS)

Products and fitment

What is a Rocker Retainer?

Which engines do you make parts for?

What are the signs of a dropped rocker?

When is the best time to fit Rocker Retainers?

Do Rocker Retainers let me rev my engine higher?

Will stiffer valve springs fix the rocker problem?

Do Rocker Retainers work with aftermarket camshafts or turbos?

Why do Rocker Retainer kits cost what they do?

Can I buy the clips separately?

Can I install Rocker Retainers myself?

Why do FA and FB engines need Rocker Retainers?

Did the valve spring recall fix the rocker problem on the 86 and BRZ?

Which vehicles does the FA/FB Rocker Retainer Kit fit?

What's included in the FA/FB kit?

Do I need to remove the engine to fit the FA/FB kit?

How do I install the FA/FB kit?

What are the FA20 valve clearance specs?

Will Rocker Retainer clips cause ticking or extra wear?

Can Denstoj install the kit for me?

What other upgrades help protect an FA20 or FA24 engine?

Toyota 86/GR86, Subaru BRZ, WRX + more (FA/FB)

Why does the 4G63 need Rocker Retainers?

Which 4G63 Rocker Retainer kit do I need?

Do the 4G63 kits fit the Eclipse, Talon, Laser or Galant VR-4?

Why do the 4G63 kits include only clips and no lash adjusters?

How do I install 4G63 Rocker Retainers?

Mitsubishi Lancer Evolution (4G63)

Why does the SR20 need Rocker Retainers?

Which SR20 engines do Denstoj kits fit?

SR20: hydraulic lash adjusters or solid lifters?

How do I install the SR20 kit?

Nissan S13 / S14 / S15 / N15 (SR20)

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