This years to do list.

[davejay]

Boom sounds,
I put headman headers elites on my 454. 1985 325. I payed extra for the ceramic coated ones. It hasn't left the driveway, and they are already rusting. The ceramic coating is nothing more than silver heat paint. I'm not impressed. I thought they would look like stainless. They looked like silver paint. Better to get unpainted or black. Sandblast them, and paint them gloss black engine paint.
Call the guys at summit, to make sure the headers you want ,will fit. Exhaust ports could be square or round. Just for grins, weld an os sensor bung on the bottom by the collected. That way when or if you want to put a Tbi carb on, you won t have to remove or get under the coach to weld on in.
Hope this helps. DJ

[davejay]

If your going to put a new water pump on, depending on your engine mileage, you might want to consider a new timing chain assembly. To verify, grab the fan, and rotate the motor if you can. With the dist cap off. See if there is any, play or lag in the rotation .the movement of the fan, should make the dist rotate immediately. If not ,you got timing chain stretching or the teeth on the big gear are worn out. Hope this helps. DJ

[davejay]

Boom sounds,
The headers come with reducers that go down to 2 1/2 inch pipes. I ordered 3 inch reducers I put on 3 inch exhaust to welded free flowing welded mufflers. I like rumble, but the mufflers are a little to loud for me. Stock mufflers choke down the exhaust flow. I think I'm going to put two more mufflers on it. DJ

[Magnet18]

A note on part numbers, look up your chassis vin, don't assume it's the same year as the AirStream model. I was surprised when my 83 310 vin came up as an 82 p-30, meaning theoretically it could have actually been built in the 81 calendar year

[Boom Sounds]

Thanks to everyone for their replies