I'm swapping in a 98' Chevy 5.7 Vortec to a 99' Cadillac Escalade which also had a 5.7 Vortec. My mechanic says the intakes don't match up, that I'd have to swap in new heads on the 98'Motor. My question is, wouldn't all the old equipment on the 99' intake fit on the 98' intake, without swapping intakes? I need serious advice here. Thank you so much