LSXrt MANIFOLD, LS3 102MM HIGH HP RUNNER (146105B)
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Compatibility
- Platform
- LS/LT
- Vehicle-specific fitment
- Review application details below
- Need help?
- Confirm fitment with us before ordering — (714) 202-7886
We list the engine platform a part is built for. That is not year-and-trim application data, so it does not confirm a fit on your specific vehicle.
- Est. install labor: 6.0 hrs — $750 at $125/hr. Pick Install at HRC and a 20% labor deposit ($150) is due at checkout; the balance is due at completion.
- An estimate for a stock vehicle, not a quote — we confirm it in writing when you book, before any labor is authorized. Seized hardware, prior modifications, diagnosis and machine work are quoted separately; tuning is arranged through our tuning partner. Questions: (714) 202-7886.
- Warranty & track disclaimer — read before you race it.
- Shipping & returns — rates and RMA terms.
- Installed in-house in Huntington Beach, CA — labor & service policy.
- Affirm and PayPal available at checkout.
More ways to pay at checkout
This LSXRT Intake Manifold gives LS3 engines with rectangle-port cylinder heads even more plenum volume for all-out racing. Best suited for high-RPM race engines, this manifold creates proven gains of 30+ horsepower over the FAST LS3 Street Manifold at high RPM. The raised 102mm throttle body location optimizes the larger, less restrictive High HP runner design, creating more power. It also clears truck drive accessories.
- Includes our 146070 High HP runners
| Part Type | Engine Intake Manifold |
|---|---|
| 9063 | No |
| 17 | Black |
| 353 | Yes |
| 3390 | Performance |
| Fitment | Rectangle Port (LS3/L92) GM LS Engines |
| Removable Intake Runners? | Yes |
| Includes Fuel Rail Mounting Brackets? | No |
| Includes Fuel Rails? | No |
| Includes Fuel Injectors? | No |
| Title | LSXrt 102mm High HP Rectangle Port Intake Manifold for LS3/L92 |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm P65Warnings. ca.gov |
| C.A.R.B. Exempt? | Yes |
| C.A.R.B. EO Number | D-279-10 |
| Includes Cylinder Head to Intake Port Seals | Yes |
| Weight | 20.3 lb |
| UPC | 00036584324225 |
| Country of Origin | USA |
Verified fitment · 112 applications
- Cadillac Escalade 6.2L (2007–2016)
- Cadillac Escalade ESV 6.2L (2007–2016)
- Cadillac Escalade EXT 6.2L (2007–2013)
- Chevrolet Avalanche 6.0L (2007–2009)
- Chevrolet Camaro 6.2L (2010–2015)
- Chevrolet Corvette 6.2L (2008–2013)
- Chevrolet SS 6.2L (2014–2017)
- Chevrolet Silverado 1500 6.0L (2007–2009)
- Chevrolet Silverado 1500 6.2L (2009–2013)
- Chevrolet Suburban 1500 6.0L (2007–2009)
- Chevrolet Tahoe 6.2L (2008–2009)
- GMC Sierra 1500 6.0L (2007–2009)
- GMC Sierra 1500 6.2L (2007–2013)
- GMC Sierra 6.2L (2008–2016)
- GMC Yukon 6.2L (2007–2014)
- GMC Yukon XL 1500 6.0L (2007–2009)
- GMC Yukon XL 1500 6.2L (2007–2014)
- Hummer H2 6.2L (2008–2009)
- Pontiac G8 6.0L (2008–2009)
- Pontiac G8 6.2L (2009)
| Part No. | 146105B |
|---|---|
| Brand | FAST |
| Part Type | Engine Intake Manifold |
| Weight | 20.3 lb |
| UPC | 00036584324225 |
| Country of Origin | USA |
Platform-level fitment (Ford + GM, Phase 1). We publish the engine platform a part is built for — not year-and-trim application data — so nothing here confirms a fit on a specific vehicle. Confirm fitment with us before ordering: (714) 202-7886.
Commonly Needed With This
Parts builders usually buy alongside this one — gaskets, seals and hardware for the install. These are suggestions, not a verified fit: call (714) 202-7886 to confirm before ordering.
