247 Steam bleed vents use a convenient AN fitting and allow the user to incorporate the rear head ports to reduce the risk of hotspots and temperature variances across the cylinders which can lead to engine failure.
Recommend for any performance based LS and suit 5.3, 6.0 5.7 LS1, LS2, LS3, LS4, LS6, LS7, LS9, LSA, LQ4, LQ9, LM7, LSX
Sold separately and available in black or silver anodised and come with O-ring and bolt.
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