I've got a '92 K1500 with a 4.3L. I know Summit and numerous other places carry headers for this combo, but they are all $350+ and I cannot bring myself to pay this. I've tried searching Google and came up with nothing. I've contacted Hedman and they just told me, "We can't guarantee they will fit." So, can anyone here tell me if a header designed for a S10/Sonoma with a 4.3L will fit my K1500? I'm looking for the why or why not. Will it fit and I just need to make some custom down pipes or something, or will they not fit at all because they hit the firewall, crossmembers, etc. Surely I'm not the first to try this?!?!?