We have produced a broad range of cast alloy intake manifolds for the many SU applications covering the A-Series engine. The single SU manifolds are developed to give maximum airflow and gas speed, yet fit all engines even if the standard air cleaner set-up is used. It has 1/2"pipe thru for heating with water and the as-cast finish provides maximum fuel atomization.
Works with 1.5" and 1.75" HS or HIF carbs: HS4, HIF4, HIF38, HS6, HIF6, HIF44.
Medium size port runners suit all small bore engines, and large bore engines up to fast road spec (dependent on head intake port size).
Comes without studs. Use studs C-22A152 x 4.