Valve Springs - Kelford Uprated - GT86 & BRZ - FA20 Nissan Skyline GTS R33 08/93> 05/98 transfer gearboxes and hypoid differentials

transfer gearboxes and hypoid differentials without limited slip which require API GL4 or GL5 performance

only lightly hand tighten

ZZT231 - Rear

Spring Rates: Front 10kg

Note: GT4 ST185 & MR2 Turbo Rev 1 & 2 - This filter is smaller than OEM and can be useful when space is tight on modified vehicles

Valve Springs - Kelford Uprated - GT86 & BRZ - FA20 Nissan Skyline GTS R33 08/93> 05/98 transfer gearboxes and hypoid differentialsGT86 & BRZ Kelford Valve Spring Set 16 The Kelford GT86 & BRZ FA20 Engine Valve Spring set can be used with standard camshafts and valve train to increase the "seat" pressure from 50 to 68lb, the fully open pressure rises to 166lb with a maximum lift of 13mm, making them an ideal choice if building a FA20 boosted application or for high revving naturally aspirated engines.