Hi Flow water pumps for numbers matching cars or obsolete castings

We are temporarily ceasing the restoration service due to intermittent labor issues. 

Contact us with your make, model and production year to purchase an impeller.

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Restoring Pumps with a FlowKooler Hi Flow Impeller

If you are interested in a rebuild you are probably (A) restoring a numbers-matching car or (B) cannot find a new pump anywhere and either want a conventional pump or have experienced the benefits of hi flow. We have been helping restorers for 40 years in the construction of our radiators so it was an easy decision to use our hi flow impellers designs for numbers-matching cars and unavailable castings.

 There are 3 scenarios we commonly see:

 A. The casting volute, diameter, depth, angle and rotational direction match an existing pump impeller

B. The casting volute, diameter, depth, angle and rotational   direction is close to an existing pump impeller but requires some modification

C. Nothing matches an existing impeller and we have to design from scratch

Step 1: Notify us that you have a pump and what it 'fits" in the order notes section          of the check out process.

Step 3: We’ll receive the pump and inspect the casting and impeller.

Step 4: We call you with information and a ballpark estimate of the cost to create a hi flow impeller for your pump. At this point, you move on to the next step or we just return your pump to you.

Step 5: If we proceed with a re-build, we'll ship your pump to a specialist that dismantles, cleans and installs new bearings and seals.

We use this company because they're experienced with dismantling fragile castings and can source, create or modify bearings on site that may take us weeks to source. They are fair, honest and have a quick turn-around.  If they find a cracked casting they can sometimes repair it for an added cost.

Step 6: The pump is returned to us and we install or modify or design a bespoke impeller and then install the impeller.  The process can take 3-4 weeks.

What’s the cost?

Obviously it ranges but the costs for the first scenario described have been tracking $299. Modifying can be ~$60-350 more. Designing a one-off bespoke impeller costs a far more. After digitizing the volute, drawing the model, procuring vice jaws, programming CNCs, and setting to machining a batch of one unit the cost can approach $700-$1,000.  Group buys and clubs can help divide the development costs.