• 7 years ago
The heads are ready for the 4.8 flat top pistoned 5.3 that is going into the 87 Chevy Truck. These 862 cast heads have been fully home ported and used 2 LS1 .\r
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via YouTube Capture.\r
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Audio is muted for most of the vid due to copy rights. Watch out for the air grinder! This is a video of my progress and results of porting a set of LS1 853 heads.\r
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LMAO YOLO P.S This is not me.\r
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LS1 COMPLETE CNC PORTED HEADS, THESE HEADS FLOW 594HP. THEY ALSO HAVE A GREAT EXHAUST TO INTAKE PERCENTAGE OF 88%, WHICH .