Cylinder head stud ARP VW Polo G40

The G40 is always prone to problems with the cylinder head bolts, especially with significantly more powerful engines. The ARP cylinder head stud bolts provide a remedy here. The ARP stud bolts prevent the cylinder head from lifting off the G40, even with increased compression and extreme boost pressure.

The up to 30 % stronger expansion steel of ARP products can withstand higher loads and pressures. The tensile strength is approx. 1400 N/mm². For comparison: a standard 10.9 bolt only has a tensile strength of 900 N/mm². The studs / stud bolts are made of 8740 chrome-molybdenum steel. The threads are rounded.

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