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0312phr Buick445 14 Z

The cylinder heads are TA Performance Stage III castings, which began life as factory Stage II designs before being refined by TA. The results are tremendous, with Buick enthusiasts able to get great performance from a bolt-on head without modifications. Shown is the combustion chamber on the original Stage III casting and the modified chamber.
Setting the Stage

The cylinder heads are TA Performance Stage III castings, which began life as factory Stage II designs before being refined by TA. The results are tremendous, with Buick enthusiasts able to get great performance from a bolt-on head without modifications. Shown is the combustion chamber on the original Stage III casting and the modified chamber.  View Related Article