Lq9+ Shaved 317’s + streetsweeper torque cam
#22
#24
The issue is that the older 3 bolt throttle body is 78mm and would require an adapter to be used to fit the 4 bolt flange. However it will not require an x link and connect to the ecu. The 4 bolt throttle body can use an 87mm truck, 90mm LS3, 92mm LS, or 102mm throttle body and offers a lot more airflow, but requires the xlink to connect to the ecu. If you were running under 300 hp then the 78mm can support it. From 300-500 hp you will want an 87mm. Above that you need 102mm.