This is a set of piston and cylinders I am putting in a 600HP 3.3 motor. What I thought you guys would like to see is the coatings we use. Coatings on internal components serve several purposes, they dissipate heat evenly, they provide a ceramic barrier, and they repel oil. If you look at the top of the piston notice it is hazy. This is the ceramic coating. This provides a barrier between the combustion and the top of the piston. It is not a license to go nuts, but it helps.

The lands are not coated because of clearance issues. The skirts are dry lubed. This process allows the oil to fling off the skirts much faster thus creating less drag and friction. We do use this on rods as well.

The last coating is on the cylinder. This is a heat dispersement coating. This coating evenly allows the heat to disperse from the cylinder. This is very important, but more so on a air cooled application.

 

More pics

 

Ceramic coating really works wonders for dissapating heat but you're right, this should allow for some extra pounding thanks to the barrier... Some day we'll be doing this to our 3.6s

 

Here are some pistons for my 410ci street/track Griggs Mustang.
$750 worth of Wiseco custom forgings. They CNC-machined a mirror dish in the tops according to a pattern they had that was pretty close to the one I sent. They have .975" pins to match the 240 rods. Even with the dish tops the CR is 10:1. They've just been untaped after ceramic coating; the next step is to moly coat the skirts. The valve heads were also coated.
My engine builder discussed whether we should do what TRD
(Toyota Racing Development) does with some of their motors,
coating the main bearing surfaces too, but it would have required
roughing up the surfaces to hold the coating, and I was too
squeamish for that, so they stayed as machined...
Joe

Here's a whole page on the motor build...
http://www.bacomatic.org/~dw/wein410/wein410.htm

 

Here they are....

 

Stephen and Joe,

Thanks for the education on coatings. I tried it on a set pistons / heads 12 years ago on my track 3.2 and was please with the results....

 

Damn Kevin, put any kind of metal part in your hand and you take it straight tothe oven Nice one!

 

You guys are gonna make me go broke with this consatant new mod stuff!!

 

Join the club man It's like some kind of addiction...