All MAP manifolds were designed and tested on a SuperFlow test bench for the best flow possible. Their perfect fit and ease of installation make these MAP designed and manufactured manifolds simply the best in the business for your Triumph, BSA and Norton.
Screw-in manifold adapter for spigot mount carbs with a 40mm spigot
Fine thread (20 tpi x 1-1/4")
1.25" OD at head
1.5" OD at the head
1.65" OAL
1.07" ID at head
1.22" ID at carb
Sold individually
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