Oil Pump Options

[CG-914]

I know that oil pumps are the bases for discussion, but:

I do have a type for and a type 1 pump,
But I like the Idea of having a type 4 pump, that lines up and is made out of aluminum,
like this one.
http://www.cbperformance.com/ProductDetail...roductCode=1829
It has the same expansion rates like the block.
Has anyone used it?
What is the QUALITY?

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[0396]

I bought a high volume type 4 from Fat Performance in Orange County California. They modified it, runs great and no oil leaks..

[Mark Henry]

I bought a high volume type 4 from Fat Performance in Orange County California. They modified it, runs great and no oil leaks..

I recommend the Schadek 26mm (for 3 rivet cam) pump, the 30mm is too big without a pressure relief cover.
Never use a Melling iron pump, too big, but worst is the fact iron has a different expansion rate than aluminum.
But the steel cover off of a melling can be used for a pump cover. (IMG:style_emoticons/default/shades.gif)

The schadeck pump has issues as well with QC sometimes the OD of the pump is under.
I often cut a groove into the pump and install an O-ring, but they are hard to install without tearing the O-ring.
Instead of an O-ring I've also applied a small amount of Threebond in the ID of the pump hole just behind the in/out holes. Don't know if this has helped, but so far no issues doing this trick.