i have a b18b. the block is obd2 and the head is obd1 and im using an obd1 harness. everything is connected but the alternator. i reused the alternator bracket from my old a1 block..the problem is i got 2 diff alternator belts for an obd1 b18b and an obd2 b18b and neither fit. they are both a tad bit short. so how would i get an alternator belt for it?