No additional information at this time. Holzfforma Blue Thunder G372XP NO Bar/No Chain 71cc Chainsaw. Holzfforma Blue Thunder G444 MS440 044 NO Bar/No Chain 71cc Chainsaw. 92cc Holzfforma Blue Thunder G660 MS660 066 Chain Saw Power Head No Bar/Chain. 92cc Holzfforma G660 PRO Top Grade Chainsaw Power Head only Meteor Piston Caber.