Heat riser insulation kit, double preheating

All 1300cc AR engine code engines and late model 1600cc AS engine codes have inlet manifolds with dual pre-heater tubes.
Dual pre-heater tubes give a better manifold heating to prevent your engine stalling from a frozen manifold on chilly days. Engines with these manifolds needs specific double block of plates to close the gaps between pre-heater tubes, cylinder covers and rear engine tin.
The block off plates for dual pre-heater tubes needs specific insulation in between their two halves. Always missing BBT brings you brand new insulation kits, to mount between upper and lower part on these block off plates.
Our kits exist out of four pieces, all you need to seal both left and right block off plates.