LQ4 throttle body vs LS1 throttle body.
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If its a cable driven one then the housings are the exact same. The throttle cam is the same as 98-99 ls1's. The vacuum port is slightly longer and both coolant tubes are straight unlike ls1's that have one straight and one 90 degree.
It will directly bolt up to any 98-99 car with slight modifications. Tim
It will directly bolt up to any 98-99 car with slight modifications. Tim