LS6 ported head question
01-28-2008, 02:24 PM
#1
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LS6 ported head question well guys, I bought a set of CNC ported LS6 heads. They are supposed to be TSP stage 1.5, but knowbody can confirm this for me. Regardless i got them for a good price. paid 500 shipped for them. I took some pictures and wanted to know what you guys thought of the port work? I havnt seen a cnc ported head before, so im not sure if its decent or not. I have since cleaned all the caron out of the exhaust ports. AND SORRY FOR THE BIG PICTURES. NOT SURE HOW TO RESIZE THEM?? Thanks in advance.
02-20-2008, 01:37 AM
#4
On every set of CNC ported cylinder heads I have worked with, the rocker embosses have been eliminated with the CNC process. GMPP, ETP, and AFR included. The only way to prevent a hole to the rocker is simple. After the CNC or hand porting process, tack the hole shut, re-port by hand, and spot face the bottom of the rocker bolt hole.
When you install the new rocker bolts, be sure to use a liquid Teflon to seal the studs so the heads don't leak. This is absolutely critical when putting them back togeather.