Holley 302-65 Lower Structure Support for Gen III Hemi Engines

The Holley 302-65 Lower Structure Support is a rigid cast aluminum component designed to bridge the gap between Gen III Hemi engines and transmissions that lack factory lower support provisions. This essential piece reduces driveline vibration and noise while providing OEM-style structural reinforcement for engine swaps and custom applications.

Key Features:

• Rigid cast aluminum construction with natural as-cast finish
• Bolts directly over existing oil pan using included hardware
• Universal fit for all Gen III Hemi engines: 5.7L, 6.1L, 6.2L, and 6.4L (2003 and newer)
• Compatible with all common transmissions including TR-6060, NAG1, 545RFE, 8HP70, 8HP90, 9HP75, A727, 46RE, 46RH, and more
• Works with Lakewood bellhousings LK7000/LK7000K paired with Mopar 3-speed, 4-speed, or Tremec TKO/TKX transmissions
• Compatible with Holley engine swap oil pans: 302-60, 302-61, 302-64, 302-64BK, 5050WND, 5051WND, WB11010, and factory stamped steel pans
• Covers lower bell-housing area to keep dirt and debris out of transmission and driveline components

This lower structure support is critical for engine swap applications where aftermarket oil pans don't provide the factory transmission-to-block connection. By creating a solid link between the engine block and transmission or bellhousing, it significantly improves driveline strength, reduces flex, and minimizes NVH (noise, vibration, and harshness). All mounting fasteners are included for straightforward installation.