1966 Chevrolet K20 Pickup Performance Transmissions
Keep Your 1966 Chevrolet K20 Pickup in Top Shape with Quality Performance Transmissions
Whether you’re repairing or upgrading your Performance Transmission, using high-quality parts is key to keeping your 1966 Chevrolet K20 Pickup looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Transmission Rebuild Kits, Performance Transmission Shift Kits, and Performance Engine and Transmission Mounts. 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 Chevrolet K20 Pickup Performance Transmission at Advance Auto Parts is around $264.79, with a range that starts at $69.99 and goes up to $459.99. With 3 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Solid Motor Mount, Transpak For 65-87 TH400 Transmission, and Master Overhaul Kit For Powerglide Transmission start at just $69.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Performance Transmission, don’t forget to check out other key components like Performance Fuel Systems and Performance Oil Filters. At Advance Auto Parts, we’re here to help you keep your 1966 Chevrolet K20 Pickup in peak condition, inside and out.
Find Your Specific 1966 Chevrolet K20 Pickup Performance Transmissions
Looking for the perfect Performance Transmission for your 1966 Chevrolet K20 Pickup? You’re in the right place. Below, you’ll find links to various types of Performance Transmissions that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Performance Transmissions, ensuring durability and a precise fit for your Chevrolet K20 Pickup. Whether you’re driving a 1966 model or another popular model year like
1963,
1967,
1968,
1969,
1970,
1971,
1972,
1973, and
1974, we’ve got you covered. Purchasing Performance Transmissions from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Performance Transmissions that fit your vehicle.
Essential 1966 Chevrolet K20 Pickup Performance Transmissions
B & M – Transpak For 65-87 TH400 Transmission (Part No.20228)
from
$166.99
The B&M Transpak has all the features in the Shift Improver Kit, plus it provides additional driver manual control. Retain full automatic features and standard shift points with selector in Drive.
Product Features:
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Product Features:
- Recalibrate Auto. Transmission
- Optimum Performance
- Select Your App. Mode
- Improves Transmission Life
- Trans. Removal Not Required
- Downshift At Any Speed
- Great For Trailer Towing
- For Heavy Loads Driving Downhill
B & M – Shift Improver Kit For 68-81 TH-350 Transmission (Part No.30262)
from
$70.99
HEAVY DUTY-Firm positive shifts without loss of driver comfort for improved performance in all street vehicles. STREET/STRIP-Positive shifts for high performance street use or for competitive events. Hardest, quickest possible shift.
Product Features:
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Product Features:
- Provides Crisp Shifts
- On Any Stock Automatic Transmission
- Eliminates Soft/Sluggish Shift
- Eliminates Shift Overlap
- Eliminate Clutch and Band Wear
Energy Suspension – Transmission Mount (Part No.3.1132G)
from
$105.99
A true performance application component for cars, trucks, hot rods. For racing/competition, yet popularly used for street vehicles when more horsepower is added. Soft running enough to absorb vibrations for street use yet rugged for racing use. Helps control torque on high performance vehicles. Maintains proper drive shaft angle to help prevent early wear and unexpected power train damage. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal transmission mounts. Resistant to under vehicle fluid oils, coolants and road contaminants. Made of Energy’s Hyper-Flex performance polyurethane and heavy duty hardware – for added durability.
Product Features:
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Product Features:
- Unique Safety Interlock Design
- Impervious To Vehicle Oils And Chemicals
- Strong Enough Too Handle High Performance
Mr. Gasket – Solid Motor Mount (Part No.3672)
from
$83.99
Mr. Gasket Solid Steel Motor Mounts are recommended only for competition applications. This .180 inch thick, zinc dichromate plated solid mounts do not have the flexing present in rubber or even polyurethane engine mounts. This prevents lateral engine movement or twisting in high horsepower and torque applications. Nor will steel mounts break as easily as stock rubber mounts can. Engine movement in applications like this can cause contact of engine components into places they do not need to be (like headers hitting the frame of the car). Also engine twisting can cause severe drivetrain misalignment affecting shifting or even power transmission to the ground. However, without the insulative effect of rubber, vibration will be substantial and thus solid mounts are not recommended for the street.
Product Features:
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Product Features:
- .180 inch thick solid steel minimizes engine movement
- Solid steel less prone to breakage than stock rubber mounts
- Prevent driveline misalignment that can affect accurate shifting and power transmission
- Prevents engine accessories from coming in contact with frame due to movement
- Recommended for competition use
- Sold as a LH/RH pair
Energy Suspension – Motor And Transmission Mount (Part No.3.1130G)
from
$116.99
Energy Suspension continues to be the World leader in performance polyurethane suspension technology. Dedication to manufacturing and developing superior products has established Energy Suspension as the most asked-for name in performance polyurethane components today. The complex and diverse nature of Energy’s proprietary Hyper-Flex material requires constant attention to developing the optimum polyurethane formulas. This devotion has produced the quality components that our customers continue to demand. Providing problem-solving solutions with applications for the most popular vehicles, paired with our Limited warranty and superb customer support, Energy Suspension is your first quality choice in performance polyurethane suspension components.
Product Features:
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Product Features:
- Re-Engineered To Handle High Horsepower
- Outlasts Rubber
- Virtually Indestructible
Energy Suspension – Transmission Mount (Part No.3.1106R)
from
$90.99
A true performance application component for cars, trucks, hot rods. For racing/competition, yet popularly used for street vehicles when more horsepower is added. Soft running enough to absorb vibrations for street use yet rugged for racing use. Helps control torque on high performance vehicles. Maintains proper drive shaft angle to help prevent early wear and unexpected power train damage. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal transmission mounts. Resistant to under vehicle fluid oils, coolants and road contaminants. Made of Energy’s Hyper-Flex performance polyurethane and heavy duty hardware – for added durability.
Product Features:
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Product Features:
- Unique Safety Interlock Design
- Impervious To Vehicle Oils And Chemicals
- Strong Enough Too Handle High Performance
Energy Suspension – Motor Mount (Part No.3.1116G)
from
$43.49
A true performance application component for cars, trucks, hot rods and racing/competition vehicles – yet designed to be also used for street vehicles. Soft-running enough to absorb vibrations for street use yet rugged for racing use. When required- a torque resistant safety interlock design is used that is comparable in strength to those too hard-running metal mounts. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal motor mounts. The popular early style mounts for General Motors vehicles are available in either zinc or chrome metal finishes. Made of Hyper-Flex performance polyurethane. Resistant to under vehicle fluids such as: oils, coolants, road contaminants, etc.
Product Features:
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Product Features:
- Gains Both Performance and Longevity
- Will Handle Any and All Torque
- Out Lasts Rubber
Mr. Gasket – Solid Motor Mount (Part No.3671)
from
$69.99
Mr. Gasket Solid Steel Motor Mounts are recommended only for competition applications. This .180 inch thick, zinc dichromate plated solid mounts do not have the flexing present in rubber or even polyurethane engine mounts. This prevents lateral engine movement or twisting in high horsepower and torque applications. Nor will steel mounts break as easily as stock rubber mounts can. Engine movement in applications like this can cause contact of engine components into places they do not need to be (like headers hitting the frame of the car). Also engine twisting can cause severe drivetrain misalignment affecting shifting or even power transmission to the ground. However, without the insulative effect of rubber, vibration can be substantial and thus solid mounts are not recommended for the street.
Product Features:
See More
Product Features:
- .180 inch thick solid steel minimizes engine movement
- Solid steel less prone to breakage than stock rubber mounts
- Prevent driveline misalignment that can affect accurate shifting and power transmission
- Prevents engine accessories from coming in contact with frame due to movement
- Recommended for competition use
- Sold as a LH/RH pair
Energy Suspension – High-Performance Transmission Mount (Part No.3.1106G)
from
$90.99
A true performance application component for cars, trucks, hot rods. For racing/competition, yet popularly used for street vehicles when more horsepower is added. Soft running enough to absorb vibrations for street use yet rugged for racing use. Helps control torque on high performance vehicles. Maintains proper drive shaft angle to help prevent early wear and unexpected power train damage. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal transmission mounts. Resistant to under vehicle fluid oils, coolants and road contaminants. Made of Energy’s Hyper-Flex performance polyurethane and heavy duty hardware – for added durability.
Product Features:
See More
Product Features:
- Unique Safety Interlock Design
- Impervious To Vehicle Oils And Chemicals
- Strong Enough Too Handle High Performance
Energy Suspension – Motor Mount (Part No.3.1116R)
from
$43.49
A true performance application component for cars, trucks, hot rods and racing/competition vehicles – yet designed to be also used for street vehicles. Soft-running enough to absorb vibrations for street use yet rugged for racing use. When required- a torque resistant safety interlock design is used that is comparable in strength to those too hard-running metal mounts. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal motor mounts. The popular early style mounts for General Motors vehicles are available in either zinc or chrome metal finishes. Made of Hyper-Flex performance polyurethane. Resistant to under vehicle fluids such as: oils, coolants, road contaminants, etc.
Product Features:
See More
Product Features:
- Gains Both Performance and Longevity
- Will Handle Any and All Torque
- Out Lasts Rubber
B & M – Master Overhaul Kit For Powerglide Transmission (Part No.21040)
from
$459.99
The B&M Master Racing Overhaul Kit includes all gaskets, seals, bushings and high performance friction materials. No transbrake body gaskets or instructions included.
Product Features:
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Product Features:
- Complete High Perf. Or Racing Trans. Overhaul
- Includes Only OEM Valvebody Gaskets
- Instructions Not Included
Popular 1966 Chevrolet K20 Pickup Performance Transmissions Categories
Most Popular Performance Transmission Rebuild Kit for 1966 Chevrolet K20 Pickups
Enhance your 1966 Chevrolet K20 Pickup with this popular Performance Transmission Rebuild Kit we have in stock, for $459.99.
B & M – Master Overhaul Kit For Powerglide Transmission (Part No.21040)
from
$459.99
The B&M Master Racing Overhaul Kit includes all gaskets, seals, bushings and high performance friction materials. No transbrake body gaskets or instructions included.
Product Features:
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Product Features:
- Complete High Perf. Or Racing Trans. Overhaul
- Includes Only OEM Valvebody Gaskets
- Instructions Not Included
Best-Selling 1966 Chevrolet K20 Pickup Performance Transmission Shift Kit
Upgrade your K20 Pickup with our best-selling Performance Transmission Shift Kit.
B & M – Transpak For 65-87 TH400 Transmission (Part No.20228)
from
$166.99
The B&M Transpak has all the features in the Shift Improver Kit, plus it provides additional driver manual control. Retain full automatic features and standard shift points with selector in Drive.
Product Features:
See More
Product Features:
- Recalibrate Auto. Transmission
- Optimum Performance
- Select Your App. Mode
- Improves Transmission Life
- Trans. Removal Not Required
- Downshift At Any Speed
- Great For Trailer Towing
- For Heavy Loads Driving Downhill
Top-Quality Performance Engine and Transmission Mounts for 1966 Chevrolet K20 Pickups
Choose a high-quality OEM or aftermarket Performance Engine and Transmission Mount for Chevrolet K20 Pickups and enjoy top-notch performance from $69.99.
Mr. Gasket – Solid Motor Mount (Part No.3671)
from
$69.99
Mr. Gasket Solid Steel Motor Mounts are recommended only for competition applications. This .180 inch thick, zinc dichromate plated solid mounts do not have the flexing present in rubber or even polyurethane engine mounts. This prevents lateral engine movement or twisting in high horsepower and torque applications. Nor will steel mounts break as easily as stock rubber mounts can. Engine movement in applications like this can cause contact of engine components into places they do not need to be (like headers hitting the frame of the car). Also engine twisting can cause severe drivetrain misalignment affecting shifting or even power transmission to the ground. However, without the insulative effect of rubber, vibration can be substantial and thus solid mounts are not recommended for the street.
Product Features:
See More
Product Features:
- .180 inch thick solid steel minimizes engine movement
- Solid steel less prone to breakage than stock rubber mounts
- Prevent driveline misalignment that can affect accurate shifting and power transmission
- Prevents engine accessories from coming in contact with frame due to movement
- Recommended for competition use
- Sold as a LH/RH pair
FAQs for 1966 Chevrolet K20 Pickup Performance Transmissions
What are the best-selling Performance Transmissions for 1966 Chevrolet K20 Pickups?
Out of 3 Performance Transmissions that fit 1966 Chevrolet K20 Pickups, the following parts are the top sellers:
- Solid Motor Mount (22900902) – $69.99
- Transpak For 65-87 TH400 Transmission (17130002) – $166.99
- Master Overhaul Kit For Powerglide Transmission (17130092) – $459.99
What’s the price range for 1966 Chevrolet K20 Pickup Performance Transmissions?
The prices of Performance Transmissions for the 1966 Chevrolet K20 Pickup range from $69.99 up to $459.99 for the most premium parts.
What is the average price of a Performance Transmission for a 1966 Chevrolet K20 Pickup?
The average price for Performance Transmissions for the 1966 Chevrolet K20 Pickup is $264.79. Keep in mind the variety of part types within our Performance Transmission category, where you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Performance Transmissions for other Chevrolet K20 Pickup model years?
What are the cheapest Performance Transmissions for my 1966 Chevrolet K20 Pickup?
The cheapest 1966 Chevrolet K20 Pickup Performance Transmissions we carry are:
- Solid Motor Mount (22900902) – $69.99
- Transpak For 65-87 TH400 Transmission (17130002) – $166.99
- Master Overhaul Kit For Powerglide Transmission (17130092) – $459.99
Does Advance Auto Parts sell Performance Transmissions for any other 1966 Chevrolet models?
Yes. We stock Performance Transmissions for 21 other popular 1966 Chevrolet models. Some of the most popular are 1966 Impala Performance Transmissions, 1966 Malibu Performance Transmissions, 1966 Corvette Performance Transmissions, 1966 Caprice Performance Transmissions, and 1966 El Camino Performance Transmissions.
What types of Performance Transmissions do you sell for my 1966 Chevrolet K20 Pickup?
As of 6/2/26, these are some of the most in-demand types of Performance Transmissions for a 1966 Chevrolet K20 Pickup:
Can I get help with 1966 Chevrolet K20 Pickup Performance Transmission orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Chevrolet Performance Transmissions and more.
What is your return policy for Chevrolet K20 Pickup Performance Transmissions?
Advance Auto Parts keeps returns simple. For new Chevrolet K20 Pickup Performance Transmissions and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.