1966 GMC K1000 Pickup Performance Engines
Keep Your 1966 GMC K1000 Pickup in Top Shape with Quality Performance Engines
Whether you’re repairing or upgrading your Performance Engine, using high-quality parts is key to keeping your 1966 GMC K1000 Pickup looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Water Outlet Gaskets and Performance Torque Converters. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.
Competitive Prices and Extensive Inventory
The average price for a 1966 GMC K1000 Pickup Performance Engine at Advance Auto Parts is around $563.11, with a range that starts at $10.39 and goes up to $799.99. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like B & M Torque Converter, Nitrous Holeshot 3600, 20482 start at just $799.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Performance Engine, don’t forget to check out other key components like Performance Ignition Products and Performance Radiators. At Advance Auto Parts, we’re here to help you keep your 1966 GMC K1000 Pickup in peak condition, inside and out.
Essential 1966 GMC K1000 Pickup Performance Engines
B & M – B & M Torque Converter, Nitrous Holeshot 3600, 20482 (Part No.20482)
from
$799.99
B&M Nitrous HoleShot 3600 stall for 1965-91 TH400, 425 and 1968-81 TH350, 375 (Not TH350C) transmissions is an excellent choice for vehicles with engine modifications, particularly big cams that tend to reduce low end power and torque. The higher stall speed of this converter will launch the car in a higher rpm range where more torque is readily available, resulting in quicker acceleration. Nitrous Holeshot converters feature furnace brazed impeller and turbine, new precision steel alloy pump drive tube, new heavy duty needle bearings between the stator and impeller (not a thrust washer) and needle bearings between the stator and turbine. Other features include dual pattern 10.75 and 11.50-inch bolt circle, a new turbine hub, new springs and rollers in the stator and anti-balloon plates. The anti-balloon plates will allow these converters to stand up to the instant horsepower that a nitrous plate system delivers. Stall speed listings are based on engines producing 230lb. ft. of torque at 2,500 rpm. More torque at 2,500 rpm will give you more stall speed, less torque at 2,500 rpm will give you less stall speed than the stall speed ratings indicated. These are serious converters for serious performance street cars. To prevent contamination left from worn parts being circulated in your new components causing premature wear, we strongly recommend protecting your investment by adding a B&M transmission cooler with all new transmission installations. Listed converters are NOT to be used in trans-brake applications. Not for use in trans-brake applications.
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Mr. Gasket – Mr. Gasket Water Outlet Gasket, 740C (Part No.740C)
from
$10.39
This is a high quality gasket that will seal that leaking water neck, and provide you with years of service. This gasket works well in all applications.
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Popular 1966 GMC K1000 Pickup Performance Engines Categories
Most Popular Performance Water Outlet Gasket for 1966 GMC K1000 Pickups
Enhance your 1966 GMC K1000 Pickup with this popular Performance Water Outlet Gasket we have in stock, for $10.39.
Mr. Gasket – Mr. Gasket Water Outlet Gasket, 740C (Part No.740C)
from
$10.39
This is a high quality gasket that will seal that leaking water neck, and provide you with years of service. This gasket works well in all applications.
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Best-Selling 1966 GMC K1000 Pickup Performance Torque Converter
Upgrade your K1000 Pickup with our best-selling Performance Torque Converter.
B & M – B & M Torque Converter, Nitrous Holeshot 3600, 20482 (Part No.20482)
from
$799.99
B&M Nitrous HoleShot 3600 stall for 1965-91 TH400, 425 and 1968-81 TH350, 375 (Not TH350C) transmissions is an excellent choice for vehicles with engine modifications, particularly big cams that tend to reduce low end power and torque. The higher stall speed of this converter will launch the car in a higher rpm range where more torque is readily available, resulting in quicker acceleration. Nitrous Holeshot converters feature furnace brazed impeller and turbine, new precision steel alloy pump drive tube, new heavy duty needle bearings between the stator and impeller (not a thrust washer) and needle bearings between the stator and turbine. Other features include dual pattern 10.75 and 11.50-inch bolt circle, a new turbine hub, new springs and rollers in the stator and anti-balloon plates. The anti-balloon plates will allow these converters to stand up to the instant horsepower that a nitrous plate system delivers. Stall speed listings are based on engines producing 230lb. ft. of torque at 2,500 rpm. More torque at 2,500 rpm will give you more stall speed, less torque at 2,500 rpm will give you less stall speed than the stall speed ratings indicated. These are serious converters for serious performance street cars. To prevent contamination left from worn parts being circulated in your new components causing premature wear, we strongly recommend protecting your investment by adding a B&M transmission cooler with all new transmission installations. Listed converters are NOT to be used in trans-brake applications. Not for use in trans-brake applications.
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FAQs for 1966 GMC K1000 Pickup Performance Engines
What are the best-selling Performance Engines for 1966 GMC K1000 Pickups?
Out of 2 Performance Engines that fit 1966 GMC K1000 Pickups, the following parts are the top sellers:
- B & M Torque Converter, Nitrous Holeshot 3600, 20482 (22300039) – $799.99
What’s the price range for 1966 GMC K1000 Pickup Performance Engines?
The prices of Performance Engines for the 1966 GMC K1000 Pickup range from $10.39 up to $799.99 for the most premium parts.
What is the average price of a Performance Engine for a 1966 GMC K1000 Pickup?
The average price for Performance Engines for the 1966 GMC K1000 Pickup is $563.11. Keep in mind the variety of part types within our Performance Engine category, where you are likely to find a wide range of prices across a variety of parts and components.
What are the cheapest Performance Engines for my 1966 GMC K1000 Pickup?
The cheapest 1966 GMC K1000 Pickup Performance Engines we carry are:
- Mr. Gasket Water Outlet Gasket, 740C (6120954) – $10.39
- B & M Torque Converter, Nitrous Holeshot 3600, 20482 (22300039) – $799.99
Does Advance Auto Parts sell Performance Engines for any other 1966 GMC models?
Yes. We stock Performance Engines for 14 other popular 1966 GMC models. Some of the most popular are 1966 K15/K1500 Pickup Performance Engines, 1966 Suburban Performance Engines, 1966 G1000 Series Performance Engines, 1966 PB1000 Series Performance Engines, and 1966 I1500 Performance Engines.
What are the top-rated Performance Engines that fit the 1966 GMC K1000 Pickup?
The one 1966 GMC K1000 Pickup Performance Engine we have in stock is the Mr. Gasket Water Outlet Gasket, 740C. It is rated 5 stars and costs $10.39.
What types of Performance Engines do you sell for my 1966 GMC K1000 Pickup?
As of 8/2/26, these are some of the most in-demand types of Performance Engines for a 1966 GMC K1000 Pickup:
Can I get help with 1966 GMC K1000 Pickup Performance Engine orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Performance Engines and more.
What is your return policy for GMC K1000 Pickup Performance Engines?
Advance Auto Parts keeps returns simple. For new GMC K1000 Pickup Performance Engines and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.