Knocking on 1990 Chevrolet Camaro

hi my 1987 camero 5.0 t.p.i. Engine has good compression starts right up but it knocks what could it be thx.

Asked by for the 1990 Chevrolet Camaro
1 answer
check oil pressure. if it's low, then it sounds like a thrust berring around the crank. if it's a high pitch knock that gets louder with rpm gain, then it's a connecting rod berring.