Throttle adapter has o-ring for sealing
Accepts LSJ or LS4 throttle body
All port transitions have a bell mouth for flow
Accepts stock LSJ MAP sensor
Has four 1/8" npt tapped holes and one 3/8" npt tapped hole
Sensor and ports are hidden on bottom side of intake
Cylinder head flange is 5/8" thick
Bare finish is not show quality, it will have brush marks from weld prep. Contact us for custom colors.