Reinforced head studs Lancia Delta Fiat COUPE 2000 16V Turbo high traction that ensure a correct closing of the head tested up to 530 hp on Lancia Delta engine with usual thread and diameter of series. No need to rethread the block.

Reinforced high traction cylinder head studs for Minicooper S, mount on stock thread

Prisoners high traction for Ford Sierra / Escort Cosworth 12mm

Prisoners high tensile specific for this engine

Prisoners high tensile

Prisoners high tensile guaranteed at least 550hp on engine Lancia Delta

High traction reinforced head studs for Fiat 500 Abarth engines Fiat Fire or Fiat T-Jet Abarth, Panda 100hp engines and all Fiat fire 8v engines and similar engines.

Prisoners high traction for Suzuki Hayabusa engines in 1300

Increased and reinforced high traction studs Lancia Delta 2000 16v diameter 12mm X 1.25

Studs high traction that ensure a correct closure of the cylinder head of the engine and usually with thread diameter of series.

Studs high traction that ensure a correct closure of the cylinder head of the engine and usually with thread diameter of series.1

Reinforced studs Lancia Delta 2000 8v 10mm high traction that ensure a correct closing of the cylinder head on engines with the usual thread and diameter as standard.