SBC CHEVY LONG WATER PUMP WITH MACHINED IMPELLER, S-3951

The picture above is a file photo. The actual water pump you will receive looks much better in our opinion. The finish is brighter with a satin like appearance. We will update the pictures soon.

The long style water pump on SBC engines came in use around 1970 and continued in use until the serpentine belt system came along in the late 80s, but many earlier cars may have converted to the long style water pump.

You may see other SBC long style water pumps on eBay that sell for less, but they are not comparable. The cost increase for the machined impeller is only part of what makes this water pump a great value. The machine work on the housing is far superior to the low cost units on the market, and the grade of alloy is much better in appearance and quality. 

ALSO AVAILABLE IN THE SHORT VERSION.

THIS PUMP HAS THE CORRECT BLOCK TO HUB HEIGHT

PLEASE BE AWARE THERE ARE SEVERAL BRANDS OF THIS STYLE WATER PUMP ON THE MARKET. WE CONSIDER THIS TO BE THE MOST RELIABLE WATER PUMP YOU CAN BUY. THIS UNIT IS MUCH BETTER BUILT THAN OTHERS WE HAVE ENCOUNTERED.

IF YOU HAVE A FACTORY SERPENTINE BELT SETUP (CAME OUT AROUND 87 OR SO, RIBBED SINGLE BELT) THIS IS NOT THE WATER PUMP YOU NEED. YOU WILL NEED A REVERSE ROTATION WATER PUMP. SEE OUR OTHER LISTINGS FOR A FULL SELECTION OF WATER PUMPS.

How to distinguish a short from a long water pump: If you can place your fingers between the timing cover and back side of the water pump, then you have a long style water pump. Short water pumps are right up against the timing cover.   

This unit is all aluminum and will flow better than any others we have tested. Continue reading! 

Here is a little story to prove our point.

We had just installed a 383 stroker engine in a 79 C-3 Corvette and had converted this to electric fans and could not stop the car from running hotter than we were comfortable with. The temp would soar to 235 in as little as ten minutes. We then replaced the OEM cast iron water pump with one of our aluminum water pumps with the aluminum impeller. We knew that aluminum water pumps, especially those with an aluminum impeller, could reduce operating temps, and it certainly did reduce the engine temp by approx. 15 degrees. We now use this water pump exclusively on all of our SBC turn key engines we build. 

Most aluminum water pumps have stamped steel impellers or at best machined iron impellers, and claim to be high volume. We have used other brands and styles of water pumps on stock engines that are not modified, and we don’t seem to have heating problems, but for vehicles with modified engines, this is the pump to run, and we proved it. 

This pump is half the weight of a cast iron water pump with no sacrifice in reliability. For those wanting to paint this pump with a contrasting color, it would come out very nice and take painting well. There are no drawbacks to running this type pump, other than cost.

If your pump is still mounted on the engine, the way to tell long from short will be that there is nearly no space between the timing cover and back of the water pump IF YOU HAVE A SHORT PUMP. The long pump will have at least one full inch of space in that area.

PLEASE BE AWARE OF THE MANY INFERIOR  WATER PUMPS ON THE MARKET. WE FEEL THIS ONE IS THE BEST AVAILABLE. IN YEARS PAST, WE HAVE SEEN INFERIOR PUMPS THAT BREAK OFF AT THE PUMP SHAFT, CAUSING SEVERE DAMAGE TO THE CAR. OUR PUMPS HAVE HAD NO SUCH FAILURES.  

BE SURE OF WHAT STYLE WATER PUMP YOU HAVE.

Very Important Note! Our sales staff has limited technical knowledge on this product and are usually unable to answer many of the questions asked. See our other listings for variations of this product. We are not responsible for collateral damage caused by the use of this product.   RETURN POLICY Should a problem occur, please contact us. If a return is necessary, please contact us for an RGA number and return authorization. The RGA number must be included on the return label. If an item is returned without an RGA number, it will not be processed. A full description of what the problem is needs to be included with any returned product with your contact info, and proof of purchase. Even though you may have explained the problem to us, and been granted permission to return the product, we must have a written explanation and a contact number included with the product. It is also recommended that you include the name of the person from our company that you have been in contact with. You must send the item back to us in a trackable manner (USPS Priority Mail, FedEx, etc.) and keep the tracking info of the returned product. Please give ample time for returns to be processed. Following these guidelines will make the return process work as it should.   PAYMENT AND SHIPPING DETAILS.   We offer great discounts on shipping. You only pay the full shipping fee on the highest shipping cost of your items, and HALF PRICE shipping on all additional items. Few offer discounts on shipping such as this. Our checkout system will automatically calculate your shipping discount at the time of final payment, providing you consolidate your payment. You may receive a verification and tracking number shortly after purchase, but this does not necessarily mean that your product has shipped. It would be fair to say that 98% of products will be going out the day the shipping label is issued. On occasion, the product may not ship out until the next day after the label has been issued. Most products purchased late in the day will not be shipped until the next day.     If you checkout and start over, the auto calculator will not recognize the multiple purchases, and there will be no shipping discount.    UPS is our primary shipper. We are unable to ship to APO/FPO addresses or PO Boxes. Help us ship your order promptly by including your physical address at checkout. Below is a map representing the estimated delivery time to get to you from our location. Delivery times may vary, especially during peak periods. UPS delivers Monday – Friday, except for national holidays. If a package leaves here on a Thursday, and you are in a 2 day delivery zone, your package will deliver to you on Monday. Expedited shipping is available upon request for an additional fee. Please contact us for rates. The estimated shipping time is usually as the map shows, but many factors can delay this.  Alaska is in a 3-day ship zone, Hawaii is in a 6-day ship zone, and Puerto Rico is in a 4-day ship zone. Additional fees will apply to shipments to these areas, as noted below. The shipping quoted in this ad is only for the 48 continental United States. If shipping to anywhere else, please contact us. The half price shipping on all additional items also only applies to items that are being shipped in the 48 continental United States.