Frankenstein M311 Cylinder Head - Assembled - 2.165/1.600 in Valve - 273 cc Intake - 71 cc Chamber - LS3 - GM LS-Series 30010BK Kit Includes: Mandrel bent 2

Kit Includes: Mandrel bent 2 X 3 frame rails

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Stamped and hardened for superior wear resistanceThe COMP Cams philosophy has never changed: make the highest performing products possible and lead the industry in technological development

Frankenstein M311 Cylinder Head - Assembled - 2.165/1.600 in Valve - 273 cc Intake - 71 cc Chamber - LS3 - GM LS-Series 30010BK Kit Includes: Mandrel bent 2Product Description: Cylinder Head M311 Assembled 2. 165 1. 600 in Valve 273 cc Intake 71 cc Chamber Aluminum LS3 GM LS Series Sold Individually A designer and manufacturer of top quality high performance cylinder heads and intake manifolds for GM's popular LS series engines as well as other performance powerplants, Frankenstein Engine Dynamics specializes in taking a high output engine to the next level. They also offer premium camshafts and