two 620ci blower motors
 

blue thunder 620ci 1271 blower coolers 380cc heads crower cranks and rods. je pistions. 1050 carbs .motors are fresh.you can here them run they are still in the boat 1100hp with 12 psi boost motors are set for 6 psi boost 920 hp $35,000 for both. building bigger motors 740ci 1500hp