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DART PRO1 LS 15° 280CC (LS3 COMPATIBLE) Aluminum Cylinder Head, Assembled w/ 1.290" Beehive Springs for Hydraulic Roller Cams | 2.165” / 1.600” .625” – Full Throttle Speed
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Dart Pro 1 PLATINUM Aluminum Small-Block Cylinder Head 230 Port Volume Assembly, | USA Performance Parts
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