Good luck. I don't know off hand what size they are but when I switched engines in blazin I wound up takeing the hoses from both and having the two ends I needed joined in the middle. NAPA did mine but any shop that does hyd. hoses will do. Hope this helps.
1982 K5 Blazer(Blazin) 4x4, 700r4, start of modified exhaust, 6 inch tall filter breather with 4" snorkel,egt gage, main bearing girdle as seen in gridle thread
1985 Suburban(Labrat) 4x4, 3' dual exhaust, egt gage, opened intake,700r4 with alto clutches, beast sun shell,13 vane pump,and more,others in progress hence the name.