Cadillac 4.9/4.5 Ht4100 V8 Ported Heads

Details:

These heads have been heavily ported and decked. Combustion chambers reshaped, valves unshrouded, exhaust and intake ports have been opened up as much as possible, and egr ports filled and shaped. Valve springs are swapped for stiffer LT1 springs, valves have a 3 angle grind. The heads were decked to bring the compression back up to 10.1:1. These heads work perfectly with the stock push rods if you have regrind cam that matches the attached specs (to account for the shorter deck height). These h...

Specifications:

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