Brief Description: Enlarge engine mount holes to 1/4" and bolt on.
The plans call out to drill the engine mount holes to 3/16” for now and then to 3/8” later. My local hardware store didn’t have 3/16” bolts, just 3/16” screws with full length threads and flat screw driver heads. I went with 1/4” bolts instead so I drilled the engine mount to firewall to 1/4". I’ll be building a rotisserie so I want something a bit bigger then 3/8” screw.