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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
4L Cylinder Heads
This provides you with a steady and consistent rpm for firm holeshots every time
Specifications:
4L: 2011 – 2021
Front cover gaskets
5.7, 6.1, & 6.4 2009-2023 Eagle & Apache Head Spacer Plate System GMFUELSYSTEM 4L Cylinder HeadsIncludes All Hardware, Electrical, Fiber Gaskets, and Jetting Jetting Included For 130 200 250 300 350 400 HP Adjustable Power Increases from 130 to 400 Horsepower Mounts Between Each Cylinder Head and Intake Manifold CNC Machined Thick Billet Aluminum Adds To Intake Manifold Height E85 Compatible Intake Spacer Plates The 5. 7, 6. 1 & 6. 4L Hemi Intake spacer nitrous plates are designed to support horsepower gains between 130 to 400 horsepower. CNC
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