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#11
12-01-2021, 01:55 AM
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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. 
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