Here is a link for information:
http://www.swaintech.com/They have different prices for different coatings and different auto parts.
It does not look like they break it down by sq inches covered, but by piece.
Here is a list of prices I boosted from there site. Looks like a set of pistons would run about $128 bucks plus shipping to get ceramic coating on the tops, and polymoly on the skirts. These guys are located in NY state. They seem to have a pretty good rep. Cant say if they are better than anyone else, but they have been around for a while, and I could not find any negitive comments on them on line.
I asked the rep about the diesel piston prices. I explained that I was talking about IDI pistons and not TDI. He was pretty sure the IDI cost would be under the standard automotive piston cost.
Automotive Coatings Price Sheet Prices assume disassembled, clean standard parts in good condition. Used
parts can be coated, but a cleaning or stripping charge may apply. Do not send assembled or dirty parts.
TBC A ceramic Thermal Barrier Coating for engine parts. Applied about .002 thick.
Gold Coat Ceramic Armor A ceramic Thermal Barrier Coating designed specifically for piston domes in extreme applications such as nitrous, turbo and superchargers. Applied about .003 thick.
Poly Moly A low friction, anti-seize, self lubricating coating. Applied about .0008 thick when applied to piston skirts.
PC-9 The latest and most durable piston skirt coating and other applications. Applied about .0008 thick when applied to piston skirts.
PPM A thin, high load solid film lubricant used for parts with little or no room for a coating. Bearings and other parts are often coated with PPM. Applied about .0002 thick.
White Lightning (TBC-EX) A ceramic thermal barrier primarily used on the outside of exhaust parts. Applied approximately .015 thick.
BBE A heat radiating coating to dissipate heat and improve cooling.
Flow Coat Non-wetable low friction coating.
Pistons
TBC on Dome and Poly Moly on Skirt
................ $32.00 each
*TBC on Dome and PC-9 on Skirt*
................. $38.00 each
Gold Coat on Dome and Poly Moly on Skirt .............. $48.00 each
Gold Coat on Dome and PC-9 on Skirt
............... $52.50 each
Dome Only with TBC
................. $24.50 each
Dome Only with Gold Coat
..
................... $42.50 each
Skirt Only with Poly Moly
....
...
............. $14.00 each
Skirt Only with PC-9
.
................
. $18.00 each
Heavy Skit Build up with PC-9 (.002-.004)
............. $24.00 each
Diesel (4.5 diameter and above) TBC and PM .......... $60.00 each
*Recommended for most applications.
Cylinder Heads - TBC Thermal Barrier Coating in Combustion Chambers and on Valve Faces
10 Cylinder (pair)
...........
.... $385.00 pair
8 Cylinder (pair)
.................... $290.00 pair
6 Cylinder (pair or inline)
..............
... $230.00
4 Cylinder Inline
...............
. $200.00 each
3 Cylinder Inline .................................................... $125.00 each
2 Cylinder Head
...............
. $80.00 each
Single Cylinder (Liquid or Air Cooled)
.................. $42.50 each
Single Exhaust Ports (when coating chambers) ...... $12.00 each
2 into 1 Exhaust Ports (when coating chambers) .... $18.00 each
Flow Coating for Intake Ports
Single Intake Ports (when coating chambers)
.... $25.00 each
2 into 1 Intake Ports (when coating chambers) ..... $28.00 each
STEALTH COAT is a coating that will allow parts to remain stock appearing after coating. Our TBC and PM can be applied in STEALTH form when applied to pistons, combustion chambers and valve faces. Add 10% to standard prices when asking for STEALTH.
Valve and Valve Train Components
Face and Radius Side (TBC)
...
........ $14.00 each
Face Only (TBC)
.......... $10.00 each
Radius Side Only (TBC)
............. $10.00 each
Stem (PPM Low Friction)
....... $8.00 each
Valve Springs (Set of 16 PPM Low Friction
..... $125.00 set
Pair of Valve Springs PPM Low Friction
..... $8.00 each
Solid Cam Follower PPM Low Friction
....... $126.00 set
Engine Bottom End Components
Bearings PPM Single
.......... $8.00 each
Bearings PPM 8 cyl rod; 4, 6, or 8 cyl. Main
. $41.50 set
Bearings PPM 6 Cylinder Rod
....... $35.50 set
Bearings PPM 4 Cylinder Rod
....... $28.50 set
Crank Shaft Oil Shedding
.......... $170.00 each
Connecting Rods Oil Shedding
..... $25.00 each
8 Cylinder Oil Pump Low Friction
... $55.00 each
Intake Manifolds
Bottom TBC Ceramic
.......... $110 - 225
Top TBC Ceramic
.
.... $110 - 225
Top and Bottom TBC Ceramic
....... $170 - 300
Top BBE Heat Radiating Coating
.......... $95 - 175
Inside Runners Flow Coating
............. $125/set
Inside Runners TBC Ceramic
......... $150/set
Brake Components
Calipers TBC inside, BBE Outside
........ $140.00 each
*BBE cannot be applied to Powder Coated Parts
Pads TBC Ceramic on Pad Back
......... $15.00 each
Extra Pistons TBC Ceramic
............. $18.00 each
Rotors High Friction, Low Heat
.........
$175.00 each
Miscellaneous Parts for Special Power Coatings
Rotary Rotor faces for TBC Ceramic
....
$150.00 each
Rotary Rotor Gears, PPM Low Friction
$75.00 each
Transmission Gears PPM Low Friction
$5 - 25 each
Transmission Shafts PPM Low Friction
.. $8 - 30 each
Ring and Pinion set PPM Low Friction
$80.00 set
Intercoolers BBE Heat Radiating
. $125 - 225
Water and Oil Coolers BBE Heat Radiating Quote
White Lightning (TBC-EX) Exhaust Coating
Due to the tremendous variations of part configuration, coating prices are estimates only. Exact pricing is based on the actual processing of each specific part. Used parts can be coated. Stripping paint, rust or a previous coating may require an additional charge. Headers with separate primaries (not held together with a flange) or with separate collectors will cost significantly more than the estimates below.
Nobody can get a coating to permanently bond all the way through an exhaust tube unless it is very short and open from both sides. We do not coat the inside of turbo parts so be sure to let us know if you are sending turbo parts so we can mask them properly. Naturally aspirated pipes may be coated on the inside if it looks like the coating will not interfere with the mounting of the pipe to the head or the mating part. If you have any specific masking requirements, be certain to let us know where you want the part to be masked so we know what you are looking for.
10-Cylinder
.........
$350 - 500
8-Cylinder Conventional or 180Ί
$275 - 350
6-Cylinder
.... $200 - 250
4-Cylinder
.......... $150 - 225
Subaru Flat Header
...... $175 - 225
Cast Iron Manifold
.
....... $150 - 235
Turbo Charger Housing
...
.. $ 90 - 125
O2 Housing ........................................ $50 - $100
Down Pipe, Crossover, Collector, etc. ... $30 - 40/foot[/b]