Collection: Build your own Engine Model Kit for Adults

SEMTO ENGINE ST-NF2 DIY Build a Nitro 4 Stroke 2 Cylinder Engine Kit That Runs- FS-L200AC

V4 Car Engine Model Full Metal Assembling Four-cylinder Building Kits for Researching Industry Studying/Toy/Gift

RETROL HM-01 7cc Model Hit and Miss 4-stroke Horizontal Internal Combustion Engine

RETROL DIY Steam Beam Engine Model with Boiler & Centrifugal Flyball Governor Model Assembly Kit

MAD RC DIY V8 Engine Model Kit for Capra VS4-10 Pro - Build Your Own V8 Engine That Works

Teching V8 Mechanical Metal Assembly DIY Car Engine Model Kit 500+Pcs Educational Experiment Toy

ENJOMOR DIY Hot Air Stirling Engine Model Building Kits Golden

TECHING DIY 5 Cylinder Electric Mechanical Aircraft Radial Engine Model Kits That Runs 250+pcs