BMW M20 Stroker Kit | 5150 AutoSport | 3.3L 3.4L 3.5L Bore Options:84.5 mm these valve springs provide enhanced 5150-SK-S65-94-12.5-CAR Bore Size - Thickness:81 mm - 0.098" cut ring and aggressive drift use
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Ships within 48 hours · Estimated delivery Oct 8 - Oct 13