Spring kit and caps Renault 5 Gt Turbo 1400 - 1600 in special steel.
Valve springs 16 pieces 8 internal springs and 8 external springs to be used according to the camshaft installed in order not to pack and have problems at high rpm.
Our caps can only be used with special one-groove valves of our production to avoid the known problems of this head with the original two-groove springs.
To install the double spring it is necessary to carry out modifications on the guide and on the head in order to install it,
The original springs have a load of 26.72kg , just using our bigger springs they are already stronger than the original Renault springs, in fact our single spring has a load of 33.5kg. while the combination of our two inverted coil springs reaches a load of 48.30 kg,
Detailed instructions are included for simple installation.
Reinforced cylinder head spring kit Fiat 500 Abarth 1400 16v T-Jet kit consisting of 16 pieces to be installed on camshafts with greater lift height. They are used with original valves and with original plate, but it is also possible to use them with our dedicated application kit valves and steel plates.