Product Description
Supertech valves
Price is for 1 valve
89-93 Miata 1.6 , 86-89 323, 323GTX Familia
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Stainless Steel for high temp operation and corrosion resistance
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Nitrided stems for low friction and reduced wear
Options:
+1mm oversize diameter for heavily ported heads
Back and undercut intake for increased flow
Longer stem length for smaller than OEM 36mm diameter base circle cams