1985 Chevrolet K20 Flywheels and Flexplates

Your 1985 Chevrolet K20 might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Flywheels and Flexplates you desperately need.

We currently carry 20 Flywheels and Flexplates to choose from for your 1985 Chevrolet K20, and our inventory prices range from as little as $35.99 up to $580.99.

On top of low prices, Advance Auto Parts offers 5 different trusted brands of Flywheels and Flexplates for the 1985 Chevrolet K20. We only sell parts from trusted brands like ATP so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 61 reviews on our Flywheels and Flexplates for the 1985 Chevrolet K20 from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Flywheels and Flexplates stock in-person!

Flywheels and Flexplates for Your 1985 Chevrolet K20

B & M – Flexplate, 168 Tooth 86-94 Chevrolet Small Block (Part No.20239)

Flexplate, 168 Tooth 86-94 Chevrolet Small Block

from

$181.99
As performance levels increase, an O.E. style flexplate just won’t cut it and a stronger option is a necessity to prevent transmission and/or converter failure. B&M has you covered with our high performance flexplate designed for 1986 to 1994 GM (externally balanced) 4.3L V6 and GM small block V8 engines with one piece rear main seal. Features include high tensile strength steel construction to resist elongation and cracking, dual bolt pattern 10.75 or 11.5 inch converter mounting locations, 168 tooth ring gear with double-sided welds for added strength and comes with SFI 29.1 safety certification insuring the ultimate in safety and performance. The assembly is then Zinc plated and treated with a Chromate Conversion Coating for added corrosion resistance and durability. B&M SFI approved flexplates are ideal for extreme duty race applications as well as street cars, tow vehicles or other vehicles needing the added protection and toughness that B&M has been delivering since 1953. Compatible with Powerglide, TH350, TH400 and TH700R4 automatic transmissions.

Product Features:
  • NHRA/IHRA Legal For All Classes
  • Includes SFI Certification Sticker
  • Ideal For Street Applications
  • To Extreme Duty Racing
  • To High RPM Use
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ATP – ATP Automatic Transmission Flex Plate (Part No.Z-111)

ATP Automatic Transmission Flex Plate

from

$35.99
Vehicles with automatic transmissions have a flex plate. Flex plates connect the engine And transmission. Most flex plates are made of a thick piece of sheet metal with bolt holes for the torque converter And teeth for the starter. The job of a flex plate is to allow for expansion of the torque converter as engine RPM increases. The constant expansion And contraction of a flex plate over time can result cracks And/or shearing of the flex plate. A damaged flex plate can create serious (expensive) damage. Broken flex plates can not be repaired, they must be replaced. ATP flex plates are made of high quality steel And contain the correct bolt hole spacing And ring gear teeth just like the original part to ensure long life And durability

Product Features:
  • Balanced to factory specs
  • Fit and function like the original parts
  • Restores normal operation
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ATP – Automatic Transmission Flex Plate (Part No.Z-136)

Automatic Transmission Flex Plate

from

$75.99
Vehicles with automatic transmissions have a flex plate. The flex plates connects the engine and transmission. Most flex plates are made of a thick piece of sheet metal with bolt holes for the torque converter and teeth for the starter. The job of a flex plate is to allow for expansion of the torque converter as engine RPM increases. The constant expansion and contraction of a flex plate over time can result cracks and/or shearing of the flex plate. A damaged flex plate can create serious (expensive) damage. Broken flex plates can not be repaired, they must be replaced. ATP flex plates are made of high quality steel and contain the correct bolt hole spacing and ring gear teeth just like the original part to ensure long life and durability

Product Features:
  • Balanced to factory specs
  • Fit and function like the original parts
  • Restores normal operation
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ATP – ATP Automatic Transmission Flex Plate (Part No.Z-135)

ATP Automatic Transmission Flex Plate

from

$66.99
Vehicles with automatic transmissions have a flex plate. Flex plates connect the engine And transmission. Most flex plates are made of a thick piece of sheet metal with bolt holes for the torque converter And teeth for the starter. The job of a flex plate is to allow for expansion of the torque converter as engine RPM increases. The constant expansion And contraction of a flex plate over time can result cracks And/or shearing of the flex plate. A damaged flex plate can create serious (expensive) damage. Broken flex plates can not be repaired, they must be replaced. ATP flex plates are made of high quality steel And contain the correct bolt hole spacing And ring gear teeth just like the original part to ensure long life And durability

Product Features:
  • Balanced to factory specs
  • Fit and function like the original parts
  • Restores normal operation
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Hays – Power Train (Part No.10-010)

Power Train

from

$135.99
Constructed of thicker than stock steel plate to withstand the stress of high stall speed converters and high RPM engine. Zinc dichromate plated to resist rust and corrosion. Meets SFI specification 29.1 for racing.

Product Features:
  • Thicker Than Stock Steel Plate
  • Ring Gear Securely Welded
  • Dual Bolt Patterns
  • Zinc-Dichromate Plated To Resist Corrosion
  • Withstands High Torque and RPM
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LuK – Clutch Flywheel (Part No.LFW101)

Clutch Flywheel

from

$97.99
LuK: New flywheels are a smart alternative! The flywheel is an integral part of clutch replacement. It must provide a smooth, flat surface for proper clutch operation. Pairing your clutch set with a new LuK flywheel is a smart, cost-effective alternative to resurfacing. All new – never remanufactured – every component is engineered and manufactured to OE specifications, including ring gear and dowel pins.
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ATP – AT HD FLEX PLATE (Part No.Z-460)

AT HD FLEX PLATE

from

$60.99
AT HD FLEX PLATE

ATP – Manual Transmission Flywheel (Part No.Z-296)

Manual Transmission Flywheel

from

$219.99
Vehicles with manual transmissions have a flywheel. The Flywheel is where the clutch assembly is mounted. It provides a smooth friction surface for the clutch disk. Flywheels also have teeth for the starter. Flywheels can crack, break, or break starter teeth. Once a damaged flywheel is diagnosed, a new replacement is the best route to go. ATP flywheels provide fit and function just like the original part to ensure durability and long life.

Product Features:
  • Manufactured to meet or exceed original equipment specs
  • No resurfacing required
  • Improves performance
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LuK – OE Quality Flywheel (Part No.LFW201)

OE Quality Flywheel

from

$198.99
LuK: New flywheels are a smart alternative! The flywheel is an integral part of clutch replacement. It must provide a smooth, flat surface for proper clutch operation. Pairing your clutch set with a new LuK flywheel is a smart, cost-effective alternative to resurfacing. All new – never remanufactured – every component is engineered and manufactured to OE specifications, including ring gear and dowel pins.
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ATP – M/T FLYWHEEL (Part No.Z-295)

M/T FLYWHEEL

from

$206.99
M/T FLYWHEEL

Hays – Flexplate: Chevy 57-85 (153T) (Part No.10-012)

Flexplate: Chevy 57-85 (153T)

from

$145.99
Constructed of thicker than stock steel plate to withstand the stress of high stall speed converters and high RPM engine. Zinc dichromate plated to resist rust and corrosion. Meets SFI specification 29.1 for racing.

Product Features:
  • Thicker Than Stock Steel Plate
  • Ring Gear Securely Welded
  • Dual Bolt Patterns
  • Zinc-Dichromate Plated To Resist Corrosion
  • Withstands High Torque and RPM
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Hays – Flywhl:55-85 V6:Sbc:Bbc:348-409:14Lb:168 (Part No.20-130HYS)

Flywhl:55-85 V6:Sbc:Bbc:348-409:14Lb:168

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$580.99
Flywhl:55-85 V6:Sbc:Bbc:348-409:14Lb:168

Hays – Flywheel: Chev 40Lb Steel (Part No.10-140)

Flywheel: Chev 40Lb Steel

from

$442.99
Hays aluminum flywheels are manufactured from certified billet material that will not break up under the stress of high RPM and severe punishment of racing. Features replaceable steel surface insert. Precision balanced to either neutral (internal) or Detroit (external) specifications. Meets SFI specification 1.1 for racing.

Product Features:
  • Certified Billet Material
  • Borg and Beck Clutch Pattern
  • Long-Style Clutch Pattern
  • Ring Gear Securely Mounted To Prevent Spinning
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Hays – Power Train (Part No.10-130)

Power Train

from

$429.99
Hays aluminum flywheels are manufactured from certified billet material that will not break up under the stress of high RPM and severe punishment of racing. Features replaceable steel surface insert. Precision balanced to either neutral (internal) or Detroit (external) specifications. Meets SFI specification 1.1 for racing.

Product Features:
  • Certified Billet Material
  • Borg and Beck Clutch Pattern
  • Long-Style Clutch Pattern
  • Ring Gear Securely Mounted To Prevent Spinning
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Lakewood – Power Train (Part No.RM-920)

Power Train

from

$229.99
Power Train

Lakewood – Power Train (Part No.RM-901)

Power Train

from

$218.99
Power Train

Lakewood – Power Train (Part No.RM-902)

Power Train

from

$193.99
Power Train

LUK – Flywheel (Part No.I1000835709LUK)

Flywheel

from

$136.39
LuK conventional flywheels are dynamically balanced to reduce vibration and improve clutch performance. All new – never remanufactured – every flywheel component is engineered and built to original-equipment specifications, including the ring gear and dowel pins.

Product Features:
  • OE quality and direct fit application
  • Made from high quality steel
  • Designed to reduce clutch chatter and vibration
  • Dynamically balanced
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LuK – Clutch Flywheel (Part No.LFW104)

Clutch Flywheel

from

$122.99
LuK: New flywheels are a smart alternative! The flywheel is an integral part of clutch replacement. It must provide a smooth, flat surface for proper clutch operation. Pairing your clutch set with a new LuK flywheel is a smart, cost-effective alternative to resurfacing. All new – never remanufactured – every component is engineered and manufactured to OE specifications, including ring gear and dowel pins.
See More

Lakewood – Power Train (Part No.RM-922)

Power Train

from

$121.99
Power Train

FAQs for 1985 Chevrolet K20 Flywheels and Flexplates

What are the most popular Flywheels and Flexplates for the 1985 Chevrolet K20?

With 5 brands you can trust, our most popular Flywheels and Flexplates for the 1985 Chevrolet K20 parts are:
ATP Automatic Transmission Flex Plate
from $35.99
(11)
ATP Automatic Transmission Flex Plate
Flywheels and Flexplates
Automatic Transmission Flex Plate
from $75.99
(3)
Automatic Transmission Flex Plate
Flywheels and Flexplates
Clutch Flywheel
from $97.99
This product is not rated
Clutch Flywheel
Flywheels and Flexplates

What are the best aftermarket Flywheels and Flexplates for the 1985 Chevrolet K20?

See what past customers had to say about our highest-rated Flywheels and Flexplates for the 1985 Chevrolet K20:
Power Train
from $135.99
(1)
Power Train
“purchased this for my 1971 427 stroker Corvette,and one of the teeth chipped off the. engine was turned correctly so this should not have happened.”