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  • Texas Speed TSP LS Roller Rocker Arms 1.72:1 Ratio with Roller Tip LS Cathedral Port 4.8 5.3 5.7 6.0 LS1 LS2 LM7 L33 LQ4 LQ9
  • Texas Speed TSP LS Roller Rocker Arms 1.72:1 Ratio with Roller Tip LS Cathedral Port 4.8 5.3 5.7 6.0 LS1 LS2 LM7 L33 LQ4 LQ9
  • Texas Speed TSP LS Roller Rocker Arms 1.72:1 Ratio with Roller Tip LS Cathedral Port 4.8 5.3 5.7 6.0 LS1 LS2 LM7 L33 LQ4 LQ9
  • Texas Speed TSP LS Roller Rocker Arms 1.72:1 Ratio with Roller Tip LS Cathedral Port 4.8 5.3 5.7 6.0 LS1 LS2 LM7 L33 LQ4 LQ9
  • Texas Speed TSP LS Roller Rocker Arms 1.72:1 Ratio with Roller Tip LS Cathedral Port 4.8 5.3 5.7 6.0 LS1 LS2 LM7 L33 LQ4 LQ9
  • Texas Speed TSP LS Roller Rocker Arms 1.72:1 Ratio with Roller Tip LS Cathedral Port 4.8 5.3 5.7 6.0 LS1 LS2 LM7 L33 LQ4 LQ9
  • Texas Speed TSP LS Roller Rocker Arms 1.72:1 Ratio with Roller Tip LS Cathedral Port 4.8 5.3 5.7 6.0 LS1 LS2 LM7 L33 LQ4 LQ9
  • Texas Speed TSP LS Roller Rocker Arms 1.72:1 Ratio with Roller Tip LS Cathedral Port 4.8 5.3 5.7 6.0 LS1 LS2 LM7 L33 LQ4 LQ9
  • Texas Speed TSP LS Roller Rocker Arms 1.72:1 Ratio with Roller Tip LS Cathedral Port 4.8 5.3 5.7 6.0 LS1 LS2 LM7 L33 LQ4 LQ9

    • Texas Speed TSP LS Roller Rocker Arms 1.72:1 Ratio with Roller Tip LS Cathedral Port 4.8 5.3 5.7 6.0 LS1 LS2 LM7 L33 LQ4 LQ9

    Texas Speed

    $629.99
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    SKU:
    25-TSP172RR-CATH
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    Product Description

    Texas Speed LS Roller Rocker Arms 1.72:1 Ratio with Roller Tip – Cathedral Port

    Fits Gen 3 / Gen 4 LS 4.8L, 5.3L, 5.7L & 6.0L Engines with Cathedral Port Heads

    The Texas Speed & Performance LS 1.72:1 Roller Rocker Arm Kit is a high-quality valvetrain upgrade designed for Gen 3 and Gen 4 LS engines equipped with cathedral port cylinder heads. Featuring steel rocker arms with integrated roller tips, this kit delivers increased strength over the factory rockers while reducing friction and wear at the valve tip. Designed as a true bolt-on solution using factory rocker arm pedestals, these rockers strike the ideal balance between durability and lightweight performance. Each set comes pre-assembled with the TSP trunnion upgrade kit installed, providing long-lasting reliability and smooth operation for street and performance applications.

    Key Features & Benefits

    • 1.72:1 Ratio Performance Upgrade: Increased rocker ratio improves valve lift and airflow compared to factory rockers, enhancing overall engine performance.
    • Steel Rocker Arms with Roller Tips: Strong steel construction offers greater durability than OEM rockers, while the roller tip reduces friction and valve stem wear.
    • Pre-Installed TSP Trunnion Upgrade: Includes upgraded trunnion bearings for smoother operation, improved oiling, and long service life compared to factory needle bearings.
    • Maintains Lightweight Valvetrain Design: Provides increased strength without the excessive weight of some aftermarket rocker systems, preserving RPM capability and valvetrain stability.
    • Bolt-On Compatibility: Designed to work with factory rocker arm pedestals on all Gen 3 and Gen 4 LS engines using cathedral port heads.

    Important Installation Notes

    • Pushrod length will need to be changed when installing these rocker arms.
    • Recommended pushrod length is approximately .175" shorter than your current setup.
    • Always verify correct pushrod length during installation to ensure proper valvetrain geometry.

    Key Fitments

    • Gen 3 LS Engines: 4.8L, 5.3L, 5.7L with cathedral port heads
    • Gen 4 LS Engines: 4.8L, 5.3L, 6.0L with cathedral port heads

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