Posted by Bill Zavatsky K3QEQ [162.158.91.46] on Monday, May 03, 2021 at 15:05:12 :
Son in law rebuilding a '63 Mack C. #673 engine. Mack 553-683267C. 18 bolt head. Head gasket #PAI EGK 8423 or Felpro FP55GB3267C. 73 & best DX. Bill K3QEQ
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