SB

iTrader: (1)

LAZ - the only hardcoating I've I've had done appears black/grey. Is it the pic's ?

Also, I do not know why (either) manufacturers like AFR machine after hard coating. Kinda defeats the purpose. Canfield when around, was completely hardcoated.
It's nice to see you go thru the extra trouble to do this. Makes a huge difference.

Do you remove (or plug) the thread holes and the spark plug threads/ spark plug seats so you can ground the heads and thus spark plugs and etc ?

Uncle Dave

Great thread Laz- thanks.

Lots of guys have equipment, but how many know how to use it?

Uncle Dave

NHGuy

Laz, thanks so much for allowing us to understand your process. It really is a big help to see the small and big details.

MESABALANCING

The hardcoat acid destroys everything but the aluminum . You can anodize the entire head threaded holes and all with no problems but yet it will eat the stainless helicoil inserts like candy. We want to sell the best product we can it's easy to look at what other guys are doing and fix the obvious such as anodize after the machining. Another point to look at the head gasket surface hardness compared to an un anodized head.

MESABALANCING

Uncle Dave you know common sense is not as common as people think if guys would stop look and listen before they do things sometimes the work can turn out as a quality piece for the customer. Thanks for your reply Laz

MESABALANCING

You know I really want guys to read these post so they can put their problems into perspective, I read so many threads here about guys with problems I really feel bad for because many of times these things can be avoided. I wish OSO members would read some of these things and ask their builders before they do the work for what they want specifically, instead of dropping the engines off to a shop and picking up what they are handed without having say in the builds. Thanks Laz

SB

iTrader: (1)

I was speaking of electrically grounding.

Hardoating a surface makes the surface electrically dead.

TylerBurich

Is the hard anodizing a process that can be done to a low hour set of fresh water aluminum heads or is the surface too contaminated?

MESABALANCING

You know I'm not an expert on the subject but I have had other parts that were anodized and corroded repaired and re anodized and held up . But a word of warning when you anodize the guides and threaded inserts need to be removed because the acid will destroy the material it does not harm the aluminum at all but it eats up the other components. What we are doing is a great deal of work but the customer receives what we consider to be the best product available. For a reference we just did two small block whipple motors that had a total of 40 hours and the cylinder heads had to be replaced I told the owner I wouldn't even consider welding them.

dereknkathy

so not only is it a manifold you prefer, you have the injector where in the airstream you want and pointed at the angle you want. as opposed to off the shelf stuff. which gets injectors installed wherever is easiest...