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o 6-bolt-per-cylinder bolt pattern
o LS7 style rectangle port design
o 12? valve angle; minimum 4.100" bore
o 270cc "as-cast" intake ports, 85cc "as-cast" exhaust ports
o 70cc "as-cast" combustion chambers
o Handles .650" list with premium springs
o Uses LS7 rocker arms/LS7 bolts
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