LS3 Spark Plug Holder – Accessories

Take your LS3 spark plug holder to the next level with these precision-modeled accessories that bring added depth and authenticity to your engine block display. Each part was designed to complement the original LS3 spark plug holder, preserving proportions and alignment while enhancing the overall realism.

Whether you’re displaying it on a workbench, using it as a teaching tool, or just flexing your LS pride, these accessories transform the spark plug holder into a complete miniature engine build.

Included accessories (.3MF format with embedded print settings):

• Front Timing Cover – Detailed faceplate with realistic contour lines for added dimension.
• Rear Engine Cover – Clean rear block closure for 360° presentation.
• Oil Pan with Filter – Designed with sump detail and spin-on filter, giving your display a full bottom-end look.
• Valley Plate – Accurately fills the space between cylinder heads, completing the top of the engine.

All files are optimized for PETG printing at 0.2mm layer height with proper orientation and settings embedded in each 3MF for hassle-free printing.

Designed to pair with the LS3 Spark Plug Holder Model for a seamless fit and visual continuity.

Perfect for garage organization, engine-themed decor, educational displays, or simply showing off your love for LS platforms in miniature form.