6.2L V8 L99 Engine Complete Assembly for 2010-2015 Chevrolet Camaro

A quick look at your own vehicle makes sure the right engine shows up:

• Check your VIN's 8th digit: Confirm that the 8th digit is 'J'.
• Confirm your transmission type: Verify that your Camaro SS is equipped with an automatic transmission.

What the install really takes — plan and budget with confidence:

Special tools this job needs:

• Engine hoist and load leveler
• GM Flywheel/Flexplate Holding Tool (e.g., EN-46106)
• Harmonic Balancer Puller and Installer Tool (e.g., GM J-41816-A)
• Fuel line quick-disconnect tool
• Torque wrench / torque angle gauge

Budget for these consumables at install:

• 8.0 quarts of Dexos1 Gen 2 or Gen 3 approved 5W-30 full synthetic oil
• High-quality spin-on oil filter (e.g., ACDelco PF48E or Wix 57060)
• Dex-Cool coolant (50/50 pre-diluted mix), approx. 11 to 12 quarts
• 8 new iridium spark plugs (e.g., ACDelco 41-110) pre-gapped to 0.040 inches
• New exhaust manifold gaskets
• New intake manifold gaskets (if swapping intake)
• New front and rear crankshaft main seals (highly recommended)
• New Harmonic Balancer Bolt (GM P/N 12557840) - Torque-to-Yield (one-time-use)
• New flywheel/flexplate bolts

What your vehicle’s computers will need after the swap:

What’s involved: Crankshaft Position (CKP) System Variation Relearn

A Crankshaft Position (CKP) System Variation Relearn is mandatory once the engine is installed. You must use a dealer-level diagnostic tool (such as GM GDS2, Tech2, or equivalent professional scan tool) to perform the relearn. Skipping this step will trigger a persistent P0315 / P1336 trouble code, cause random misfires, and run in a degraded performance mode.

Pro tips for a smooth first start-up — hand them to whoever does the install:

• The Harmonic Balancer Bolt Procedure: Must use old bolt to pull balancer to 240 ft-lbs, then replace with a new TTY bolt torqued to 37 ft-lbs plus 140 degrees. Never reuse the old bolt.
• Structural Oil Pan Alignment: The aluminum oil pan must be aligned perfectly flush with the rear face of the engine block before tightening, or bolting it to the transmission will crack the pan or case.
• AFM Valley Cover (VLOM) O-Rings: Ensure small rubber sealing O-rings are replaced and perfectly seated to prevent oil pressure bleed-off.
• VVT Camshaft Phaser Bolt: This is a torque-to-yield fastener and acts as an oil control valve; it must be replaced if timing set is serviced.
• Timing Chain Tensioner: Many mechanics recommend replacing the spring-loaded tensioner with the more robust LS2 style damper while the engine is out.

Easy to get right once you know them:

• The LS3 vs. L99 Mix-up: Ordering this L99 engine for a manual-transmission Camaro SS. Manual Camaros use the LS3 engine which lacks AFM and VVT.
• Pinching the Oil Pump Pickup Tube O-Ring: Pinching or tearing this O-ring during oil pan/pump swap causes the pump to draw air, resulting in low oil pressure and immediate engine damage.
• Reusing the Harmonic Balancer Bolt: Reusing the TTY bolt causes it to lose clamping force and back out, throwing belts and ruining the crankshaft.
• Blaming the Engine for Misfires Before Performing a Relearn: Forgetting to perform the mandatory Crankshaft Position Relearn and assuming the engine is defective.
• Using Incorrect Engine Oil: Using incorrect viscosity or non-synthetic oil can clog AFM solenoids and cause lifter failure.
• Attempting to Run on an LS3 Tune: Trying to run an L99 engine on an LS3 computer calibration without mechanical modifications.

Not issues with the units on this page — the manufacturer documented these for every engine of this family, wherever you buy one. Handy for your installer: