doing a b16a swap into my 91 ls and 2 of the head bolts are longer than all the other ones. should i get a whole new set of head bolts for the b16a or should i just get 2 more head bolts that are same in length of the other ones off the b18a

 

Are you swapping the B16 head onto the LS bottom end?

 

nope just full b16 swap, he blew headgasket and drove on it too long and fucked everything up

 

You really shouldn't reuse headbolts. I know a lot of guys do, but I (and any mechanic worth his salt) do not recommend it. I was always taught that at the proper torque, headbolts are meant to stretch slightly upon installation.