: 1965 deville exhaust manifold who knows the truth??



70LAC
06-27-11, 07:03 PM
OK I HAVE A REAL BAD CRACK ON MY EXHAUST MANIFOLD ON THE PASSANGER SIDE, CAR RUNS LIKE POOP. LOUD AND STUDDERS, SO I CALL A PARTS PLACE THEY SAY THE ONLY YEARS THAT WORK IS 1965-67. THEN I CALL ANOTHER USED PARTS PLACE THEY SAY IT HAS TO BE THAT YEAR, THEN I CALL ANOTHER THEY SAY 64 65 66 ARE SAME. SO WHO KNOWS? I TRIED TO LOOK FOR A PART NUMBER ON IT AND DONT SEE ONE . WILL DRIVING IT TO TO LONG LIKE THIS MESS UP THE MOTOR? DOES ANYONE KNOW ANYTHING? here is a pic of the crack i used exhaust cylicone just to get home but it endued up burning off after a week

outsider
06-27-11, 07:22 PM
i want to say 65 - 67 had the same engine...

albymangled
06-27-11, 07:25 PM
Can't tell you anything about year / fit but if it's possible stop driving the car till you fix it.

Cracked or loose exhaust manifold can lead to burnt exhaust valve which will be a much more serious problem.

It IS possible to get cast iron welded but I reckon that it would be a last resort.

CADforce69
06-27-11, 07:46 PM
i want to say 65 - 67 had the same engine...

To be precise, the 429 engine equipped 64-67 cadillacs :), but I ignore if some modification was introduced in the exhaust manifold through these years. I think all should be interchangeable. BTW, cast iron welding is the last resort, as it requires a very refined technique. In most cases, the manifold ends up cracking again.