Speaking of LS rectangle ports, the LS7 heads aren't as-cast. Factory CNC'd.
Worth noting the valve sizes, 2.2 and 1.6. Titanium valves. They also sit atop
a 4.125 bore and 4.00 stroke, why does that sound so familiar?
Also worth noting that the 5.3 (325 CID) has a bore of just 3.780 inches. And
they
LOVE sticking turbos on them. Our tree fiddy is 3.875.
