PONTIAC ENGINES ARE TOTALY DIFFERENT, THE ONLY PARTS THAT INTERCHANGE BETWEEN A PONTIAC AND CHEVROLET IS THE CARBURATOR, DISTRIBUTER CAP, ROTOR, AND ADVANCE WEIGHTS (AND THOSE ARE TURNED UPSIDE DOWN COMPARED TO A CHEVROLET). I'M GOING TO THE MACHINE SHOP THIS WEEKEND TO PICK UP MY PONTIAC 400 PARTS..... TOAL BILL TO DATE - 800 FOR PARTS - 700 FOR MACHINE WORK - ETC. ETC. ETC. THE MACHINE WORK PRICES ARE VERY COMPARABLE FOR JUST ABOUT ANY ENGINE, IT IS THE PRICE OF THE PARTS THAT CAN VARY. LASTLY - 350 PONTIACS ARE ALMOST CONSIDERED RARE (NOT MANY LEFT)
