Trick Flow® Double Platinum .660 LS Dual Valve Spring and Retainer Kits TFS-2500287P

Nano-Peened Dual Valve springs, Titanium retainers, 160 lbs. seat pressure. 425 lbs. open at .670 lift. LS1, LS6, LS2, LS3, LQ4, LQ9, L92, Kit

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Installed Height (in): 1.800 in.

Seat Pressure at Installed Height (lbs): 160 lbs.

Open Height (in): 1.130 in.

Open Pressure (lbs): 425 lbs.

Application Notes: 0.735 in. max lift.

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