TR5 TR6CP/CF Inlet/Exhaust Gasket. Wide spacing. This gasket is made from thicker, stronger, more compliant material than the original gasket and is less likely to blow out.
Use this gaskets where sealing problems exist (or is likely to exist) between the head and manifolds, particularly where an extractor manifold is used, as these usually have a slightly uneven face due to the heat generated when the pipes are welded to the flange plate.
This part is listed on the following page of the website, where further information and background reading may be found.
Engine, Transmission, wheels/Tyres and Heating/Cooling »
SPECIAL INLET/EXHAUST GASKETS (HIGH PORT)
Q: How do I know if I have wide or narrow port cylinder head
A:
Only cars exported to the US had narrow port heads, these being fitted to TR250 and early TR6 both with the commission number prefix CC. It is the inlet ports that are different in this respect, the exhaust ports are the same throughout.
All TR5 and all TR6 other than CC prefixed cars have a wide spacing of the inlet ports. If you are considering changing your cylinder head, adding an extractor manifold or fitting a carburettor manifold, including Weber manifold it is essential to know which head you have.
To find out, measure between the inlet ports which are in 3 pairs.
CC cars: 17mm. The gasket usually has slightly larger diameter holes therefore the gap in the gasket will measure 15mm
CP, CF and CR cars: 25mm. The gasket usually has slightly larger diameter holes therefor the gap in the gasket will measure 23mm
Note: - Many TR's have engines and heads from saloon cars fitted so measuring is the only sure way.
