Product Description
OEM LS3 Rocker Arms for Square Port LS Engines
Fits 6.2L LS3 L99 L76 L92 LS9 LSA Square Port Cylinder Heads | Includes 8 Offset Intake Rockers & 8 Exhaust Rockers
Replace worn, damaged, or missing rocker arms on your square port LS engine with this OEM LS3 Rocker Arm set. Designed for LS3, L99, L76, L92, LS9, and LSA cylinder head applications, this set includes the correct offset intake rocker arms used on square port LS heads along with standard LS exhaust rocker arms. The LS3-style intake rocker arms feature the required offset fulcrum design for proper intake valve alignment on square port cylinder heads, making this a direct-fit solution for factory-style valvetrain repairs, top-end rebuilds, cylinder head service, camshaft swaps, and LS performance builds using OEM rocker geometry.
Key Features & Benefits
- Correct LS3 Square Port Rocker Arm Set: Built for LS3, L99, L76, L92, LS9, and LSA square port cylinder head applications. This set provides the proper intake and exhaust rocker configuration needed for factory-style valvetrain geometry on rectangle port LS engines.
- Offset Fulcrum Intake Rockers: The included LS3 intake rocker arms feature the offset fulcrum design required for square port cylinder heads. Using the correct offset intake rocker is critical for proper valve tip contact, valvetrain alignment, and reliable operation on LS3-style head platforms.
- Complete Intake & Exhaust Rocker Coverage: Includes 8 GM LS intake offset rocker arms and 8 GM LS exhaust rocker arms, giving you the full rocker arm set needed for one LS V8 engine. This makes it ideal for rebuilds, damaged rocker replacement, and complete cylinder head service.
- OEM Replacement Rocker Geometry: Designed to maintain factory LS rocker arm fitment and geometry for compatible square port engines. This is a smart option for customers who want dependable OEM-style valvetrain function without changing rocker ratio, valve placement, or cylinder head compatibility.
- Great for Repairs, Cam Swaps & Top-End Builds: Perfect for replacing worn rocker arms, refreshing a high-mileage LS3-style engine, completing a camshaft upgrade, servicing cylinder heads, or assembling a performance LS top-end. Correct rocker arm selection helps protect the valve train and supports reliable engine operation.
Notes
- Application: OEM-style rocker arm set for LS square port / rectangle port cylinder heads.
- Intake Rockers Included: 8 GM LS intake offset rocker arms.
- Intake Rocker Part Numbers: 12569167, 12669995, 12696105.
- Exhaust Rockers Included: 8 GM LS exhaust rocker arms.
- Exhaust Rocker Part Number: 12681275.
- Recommended Use: LS3-style cylinder head service, rocker arm replacement, camshaft swaps, top-end rebuilds, valvetrain repairs, and factory-style LS performance builds.
Key Fitments
- LS3 square port cylinder head applications
- L99 square port cylinder head applications
- L76 square port cylinder head applications
- L92 square port cylinder head applications
- LS9 square port cylinder head applications
- LSA square port cylinder head applications
- 6.2L LS square port engine applications
- Fitment note: For LS square port / rectangle port cylinder heads requiring offset intake rocker arms.
