ダブルオーバーヘッドカムシャフトだったら
daburuōbāheddokamushafutodattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of ダブルオーバーヘッドカムシャフト

1. If it were a double overhead camshaft…; Were it a double overhead camshaft…

Tara Conditional