1966 AMC American Performance Engines
Keep Your 1966 AMC American 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 AMC American looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Engine Camshaft and Lifter Kits, Performance Engine Coolant Thermostats, and Performance Engine Camshafts. 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 AMC American Performance Engine at Advance Auto Parts is around $253.10, with a range that starts at $12.99 and goes up to $656.99. With 11 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like High Performance Thermostat, Xtreme 4X4 218/226 Hydraulic Flat Cam for AMC/Jeep 199-258/4.0L, and Xtreme 4X4 206/214 Hydraulic Flat Cam for AMC/Jeep 199-258/4.0L start at just $32.49 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 AMC American in peak condition, inside and out.
Find Your Specific 1966 AMC American Performance Engines
Looking for the perfect Performance Engine for your 1966 AMC American? You’re in the right place. Below, you’ll find links to various types of Performance Engines that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Performance Engines, ensuring durability and a precise fit for your AMC American. Whether you’re driving a 1966 model or another popular model year like
1964,
1965,
1967, and
1968, we’ve got you covered. Purchasing Performance Engines 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 Engines that fit your vehicle.
Essential 1966 AMC American Performance Engines
Mr. Gasket – Intake Manifold Bolts (Part No.955G)
from
$18.29
These grade 5 socket head bolts are zinc plated for protection and appearance. Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds. Includes twelve (12) 3/8-16 x 1 inch bolts & washers.
Product Features:
See More
Product Features:
- Grade 5 socket head bolts are zinc plated for protection and appearance
- Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds
- Washers Included
Mr. Gasket – High Performance Thermostat (Part No.4365)
from
$32.49
Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.
Product Features:
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Product Features:
- Opens At 195 Degrees
- Designed to Resist Large Variations of Coolant Pressure at High RPM
- Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
- For High Performance Street, Drag Race, and Oval Track
- Copper & Brass Construction – Resists Corrosion
- High Flow
Popular 1966 AMC American Performance Engines Categories
Most Popular Performance Engine Camshaft and Lifter Kits for 1966 AMC Americans
Enhance your 1966 AMC American with one of the 2 Performance Engine Camshaft and Lifter Kits we have in stock, starting at just $559.99.
Competition Cams – Thumpr 227/241 Hydraulic Flat Cam and Lifter Kit for AMC 290-401 (Part No.CL10-600-5)
from
$656.99
Thumpr 227/241 Hydraulic Flat Cam and Lifter Kit for AMC 290-401
Competition Cams – Xtreme 4X4 206/214 Hydraulic Flat Cam and Lifter Kit for AMC/Jeep 199-258/4.0L (Part No.CL68-231-4)
from
$559.99
Xtreme 4X4 206/214 Hydraulic Flat Cam and Lifter Kit for AMC/Jeep 199-258/4.0L
Best-Selling 1966 AMC American Performance Engine Coolant Thermostat
Upgrade your American with our best-selling Performance Engine Coolant Thermostat.
Mr. Gasket – High Performance Thermostat (Part No.4365)
from
$32.49
Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.
Product Features:
See More
Product Features:
- Opens At 195 Degrees
- Designed to Resist Large Variations of Coolant Pressure at High RPM
- Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
- For High Performance Street, Drag Race, and Oval Track
- Copper & Brass Construction – Resists Corrosion
- High Flow
Top-Quality Performance Engine Camshafts for 1966 AMC Americans
Choose a high-quality OEM or aftermarket Performance Engine Camshaft for AMC Americans and enjoy top-notch performance from $426.99.
Competition Cams – Xtreme 4X4 210/218 Hydraulic Flat Cam for AMC/Jeep 199-258/4.0L (Part No.68-235-4)
from
$458.99
Xtreme 4X4 210/218 Hydraulic Flat Cam for AMC/Jeep 199-258/4.0L
Competition Cams – Xtreme 4X4 206/214 Hydraulic Flat Cam for AMC/Jeep 199-258/4.0L (Part No.68-231-4)
from
$426.99
Xtreme 4X4 206/214 Hydraulic Flat Cam for AMC/Jeep 199-258/4.0L
Competition Cams – Xtreme 4X4 218/226 Hydraulic Flat Cam for AMC/Jeep 199-258/4.0L (Part No.68-239-4)
from
$426.99
Xtreme 4X4 218/226 Hydraulic Flat Cam for AMC/Jeep 199-258/4.0L
Top Picks for 1966 AMC American Performance Engine Push Rods
Invest in one of our 2 durable Performance Engine Push Rods for your 1966 AMC, knowing you’re getting trusted brands and expert craftsmanship.
Competition Cams – Hi-Tech 7.950" Long, .080" Wall, 5/16" Diameter Pushrod Set (Part No.7994-16)
from
$281.99
Hi-Tech 7.950" Long, .080" Wall, 5/16" Diameter Pushrod Set
Competition Cams – Hi-Tech 7.950" Long, .080" Wall, 5/16" Diameter Pushrod (Part No.7994-1)
from
$16.99
Hi-Tech 7.950" Long, .080" Wall, 5/16" Diameter Pushrod
Our Top-Rated Performance Intake Manifolds for 1966 AMC Americans
Make a smart move for your 1966 AMC American with our Performance Intake Manifold for $18.29.
Mr. Gasket – Intake Manifold Bolts (Part No.955G)
from
$18.29
These grade 5 socket head bolts are zinc plated for protection and appearance. Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds. Includes twelve (12) 3/8-16 x 1 inch bolts & washers.
Product Features:
See More
Product Features:
- Grade 5 socket head bolts are zinc plated for protection and appearance
- Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds
- Washers Included
FAQs for 1966 AMC American Performance Engines
What are the best-selling Performance Engines for 1966 AMC Americans?
Out of 11 Performance Engines that fit 1966 AMC Americans, the following parts are the top sellers:
- High Performance Thermostat (22903641) – $32.49
- Xtreme 4X4 218/226 Hydraulic Flat Cam for AMC/Jeep 199-258/4.0L (50289076) – $426.99
- Xtreme 4X4 206/214 Hydraulic Flat Cam for AMC/Jeep 199-258/4.0L (50289072) – $426.99
What’s the price range for 1966 AMC American Performance Engines?
The prices of Performance Engines for the 1966 AMC American range from $12.99 up to $656.99 for the most premium parts.
What is the average price of a Performance Engine for a 1966 AMC American?
The average price for Performance Engines for the 1966 AMC American is $253.10. 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.
Does Advance Auto Parts sell Performance Engines for other AMC American model years?
What are the cheapest Performance Engines for my 1966 AMC American?
The cheapest 1966 AMC American Performance Engines we carry are:
- Engine Valve Spring (50286866) – $12.99
- Hi-Tech 7.950" Long, .080" Wall, 5/16" Diameter Pushrod (50289739) – $16.99
- Intake Manifold Bolts (6120970) – $18.29
- High Performance Thermostat (22903641) – $32.49
- Engine Valve Spring Kit (50286876) – $111.99
Does Advance Auto Parts sell Performance Engines for any other 1966 AMC models?
Yes. We stock Performance Engines for 4 other popular 1966 AMC models. Some of the most popular are 1966 Ambassador Performance Engines, 1966 Rebel Performance Engines, 1966 Marlin Performance Engines, 1966 Classic Performance Engines, and 1966 Rogue Performance Engines.
What types of Performance Engines do you sell for my 1966 AMC American?
As of 3/1/26, these are some of the most in-demand types of Performance Engines for a 1966 AMC American:
Can I get help with 1966 AMC American Performance Engine orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about AMC Performance Engines and more.
What is your return policy for AMC American Performance Engines?
Advance Auto Parts keeps returns simple. For new AMC American Performance Engines and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.