Performance valve spring and titanium retainer kit to suit Isuzu 4JJ1TC engines.

Drop in setup. No modification required.  Uses standard valve stem seals and collets.  The titanium retainers are not standard and should only be used with these springs.

Spring Construction: 6 coils, 4 mm thick, clockwise, OD=29.8, ID=22.1

Installed spring pressure: 44 to 46 kg (97 to 101.4 lbs.) @ 37.8 mm (1.488") This is a 120% increase over OE ute/pass intake and exhaust springs.

Coil Bind: 24.1 mm (0.948")

Only sold as a set.


Our part number: VSKIS330B

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