7.5 L 654 hp NA 4 CYL big block

[redroadster]

Alfadan marine engine
If you have 20 minutes to spare , a new marine manuf. States they are going to change 4 CYL inlines
A new rod design and balance shafts make it workable , the engine is built but not showing it running
Look under Revolutionary big block 4 CYL engine on YT
"revolutionary 4cyl big block alfadan marine" on the- driving 4 answers- ..chan
If it does what they say , and can last, look out