help with subwoofer box

hi i need help with a sub box its ganna be for four 10inch subs the demensions are td-5" bd-12" h-16" w-57" and i want to add a port and i dont know how big to make it i want it as loud as possible too so any good box sugestions that can do that please help also its going in a reg cab 98 chevy

What model subs?

i just bought cheapy lanzar max the 4 ohms so i can wire down to one ohm and im powering with a hifonics 1200 class d

I had 1 lanzar maxx 12 in a ported box with a bd1000 on it and it was the loudest one sub I had in it till I blew it out. I had it in My superduty 03 reg bab in a sealed box with orion 600 watt amp and it sounded terrible. so just dont abuse em.

yeah there good just cheap i used to have 2 lanzar maxp15 and they were loud

since you only have about 4 cu. ft. you're not going to be able to give the 4 subs enough air space to be in a decent ported box. i would just go sealed and be done with it.

alright il prolly just do that save me time money and its easier ha thanks