1991 Chevrolet Blazer Engine Internals

Essential 1991 Chevrolet Blazer Engine Internals

Sealed Power – Engine Crankshaft Main Bearing Set (Part No.4663MA 60)

Engine Crankshaft Main Bearing Set

from

$55.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Reduces dramatically or eliminates bearing wear
  • Exacting tolerances
  • Meets or exceeds OEM specifications
  • Made with silicon to provide greater surface hardness
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Sealed Power – Engine Crankshaft Main Bearing Set (Part No.4663MA 40)

Engine Crankshaft Main Bearing Set

from

$58.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Reduces dramatically or eliminates bearing wear
  • Exacting tolerances
  • Meets or exceeds OEM specifications
  • Made with silicon to provide greater surface hardness
See More

Sealed Power – Engine Connecting Rod Bearing Set (Part No.6-1020A 1.00MM)

Engine Connecting Rod Bearing Set

from

$45.49
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Dramatically reduces or eliminates bearing wear
  • Made with silicon to provide greater surface hardness
  • Silicon particles help polish crankshaft journal to further reduce wear during operation
  • Utilizes ISO & QS certified manufacturing
See More

Sealed Power – Engine Connecting Rod Bearing Set (Part No.8-3190A 20)

Engine Connecting Rod Bearing Set

from

$42.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Dramatically reduces or eliminates bearing wear
  • Made with silicon to provide greater surface hardness
  • Silicon particles help polish crankshaft journal to further reduce wear during operation
  • Utilizes ISO & QS certified manufacturing
See More

Sealed Power – Engine Piston (Part No.WH699DCP)

Engine Piston

from

$31.49
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Hypereutectic
  • Made w/exclusive FM425 material for excellent strength & scuff resistance – allows tighter bore and improves sealing for less blow-by
  • Sophisticated “barrel” profiles help optimize oil wedge between skirt and wall.
  • Piston skirts protected by next-gen DUROSHIELD« coating.
  • TAC┐ ring groove geometry
  • Weight matched to +/- 2 grams.
See More

Sealed Power – Engine Piston (Part No.WH423DCP 60)

Engine Piston

from

$19.49
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Hypereutectic
  • Made w/exclusive FM425 material for excellent strength & scuff resistance – allows tighter bore and improves sealing for less blow-by
  • Sophisticated “barrel” profiles help optimize oil wedge between skirt and wall.
  • Piston skirts protected by next-gen DUROSHIELD« coating.
  • TAC┐ ring groove geometry
  • Weight matched to +/- 2 grams.
See More

Sealed Power – Engine Piston Ring Set (Part No.E-356X)

Engine Piston Ring Set

from

$76.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Unsurpassed quality that you can trust
  • Uses leading edge materials
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
See More

Sealed Power – Engine Piston Ring Set (Part No.E-233K 20)

Engine Piston Ring Set

from

$77.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Face of top rings coated with latest generation Plasma-Moly
  • Decreases friction
  • Very resistant to scuffing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
See More

Sealed Power – Engine Connecting Rod Bearing (Part No.2555A 1)

Engine Connecting Rod Bearing

from

$7.29
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Dramatically reduces or eliminates bearing wear
  • Made with silicon to provide greater surface hardness
  • Silicon particles help polish crankshaft journal to further reduce wear during operation
  • Utilizes ISO & QS certified manufacturing
See More

Sealed Power – Engine Connecting Rod Bearing (Part No.2555CP 40)

Engine Connecting Rod Bearing

from

$3.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
See More

Sealed Power – Engine Piston (Part No.H699DCP 40)

Engine Piston

from

$30.99
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Hypereutectic
  • Made w/exclusive FM425 material for excellent strength & scuff resistance – allows tighter bore and improves sealing for less blow-by
  • Sophisticated “barrel” profiles help optimize oil wedge between skirt and wall.
  • Piston skirts protected by next-gen DUROSHIELD« coating.
  • TAC┐ ring groove geometry
  • Weight matched to +/- 2 grams.
See More

Sealed Power – Power Forged Piston (Part No.L-2256F 40)

Power Forged Piston

from

$58.99
Speed-Pro delivers the power you need and the value and quality that you deserve. Whether you are running at the track, chasing trophies on the strip, or just cruising down the road, count on Speed-Pro to provide the best value in HP engine components

Product Features:
  • TAC ring groove geometry
  • Weight matched to +/- 2 grams
  • Piston skirts protected by next-gen DUROSHIELD coating
  • Exclusive higher-strength FM-425 alloy with 16.5% silicon finely dispersed throughout the material
  • Sophisticated barrel profiles help optimize oil wedge between skirt and wall
  • Machined valve reliefs and circlip grooves; LR-63 lock rings for floated applications
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Mr. Gasket – Woodruff Key (Part No.984G)

Woodruff Key

from

$30.19
Short style. The offset cam and crankshaft key is another method to increase torque and horsepower within the operating range you select.

Product Features:
  • Increases Low-End Torque
  • Increases Mid-Range Horsepower
  • Reduces Low-End Torque
  • Increases Top-End Horsepower
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National – Multi Purpose Seal (Part No.5092)

Multi Purpose Seal

from

$42.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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National – Multi Purpose Seal (Part No.710891)

Multi Purpose Seal

from

$21.79
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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Timken – Crankshaft Seal (Part No.A8060323444TIM)

Crankshaft Seal

from

$46.44
Crankshaft Seal

National – Shaft Repair Sleeve (Part No.99364)

Shaft Repair Sleeve

from

$48.99
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
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National – Shaft Repair Sleeve (Part No.99233)

Shaft Repair Sleeve

from

$30.99
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
See More

National – Redi-Sleeve (Part No.99353)

Redi-Sleeve

from

$82.99
Redi-Sleeve

Dorman – Connecting Rod Nuts, Type 2, 3/8-24 X 9/16 In., Ford (Sold by each) (Part No.635-002)

Connecting Rod Nuts, Type 2, 3/8-24 X 9/16 In., Ford (Sold by each)

from

$1.29
This engine connecting rod nut is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine connecting rod nut matches the fit and function of the factory part on specified years, makes and models.
  • Ideal solution – this nut is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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ARP Auto Racing – For Use With Chevy Gen Iii/Ls Series Small Block/ Gmpp Lsx Block, Hex Head (Part No.234-5608)

For Use With Chevy Gen Iii/Ls Series Small Block/ Gmpp Lsx Block, Hex Head

from

$329.99
There are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel ground washers and high quality nuts. Some applications have provisions for mounting wind age trays and have specially designed standoff studs with serrated lock nuts to position the wind age tray and lock it securely in place. The studs are manufactured from 8740 chrome moly steel, heat treated in-house to 200,000 Pounds Per Square Inch tensile strength, and precision J-form threads rolled after heat treat to create a fastener that has threads 1000 Percent stronger than others.

Product Features:
  • Kit Come Complete With Hardened Parallel Ground Washers And High Quality Nuts
  • Manufactured From 8740 Chrome Moly Steel
  • Heat Treated To 200,000 Pounds Per Square Inch
  • Precision J-Form Threads Rolled After Heat Treat To Create A Fastener That Has Threads 1000 Percent Stronger Than Others
  • 200,000 PSI
  • Sold As A Kit
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ARP Auto Racing – For Use With Chevy Small Block Large Journal, 4 Bolt Main, Hex Head, Chrome Moly (Part No.134-5202)

For Use With Chevy Small Block Large Journal, 4 Bolt Main, Hex Head, Chrome Moly

from

$68.99
Far superior to any other main bolt kit offered for use in competition engines, ARP main bolts are designed to meet the exacting standards and demands of professional engine builders. Forged from 8740 chrome moly, all bolts feature generous under head radius and rolled threads for the utmost reliability. The threads are rolled after heat treating, which makes them about 1000 Percent longer fatigue life than most main bolts, which are threaded prior to heat treating. Available in the popular High Performance Series, which, at a nominal rating of 180,000 PSI, is a premium replacement for OEM fasteners, or the 200,000 PSI nominal rated Pro Series, application specific main bolts with reduced wrenching head and are designed for use in competition applications. Parallel ground, hardened washers are included with each kit.

Product Features:
  • Forged From Premium Grade 8740 Chrome Moly Steel
  • Generous Under Head Radius And Rolled Threads For The Utmost Reliability
  • Threads Are Rolled After Heat Treating, Which Makes Them About 1000 Percent Longer Fatigue Life Than Most Main Bolts, Which Are Threaded Prior To Heat Treating
  • Parallel Ground, Hardened Washers Are Included With Each Kit
  • Large Journal
  • Sold As A Kit
  • 180,000 PSI
See More

ARP Auto Racing – For Use With Chevy Small Block, 5/8" Socket Size, 3/4" – 16 Thread Size (Part No.134-2501)

For Use With Chevy Small Block, 5/8" Socket Size, 3/4" - 16 Thread Size

from

$31.99
As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in position, ARP has developed these ultra strong 200,000 PSI bolts that let you exert maximum clamping force. Special features include 1/4 Inch thick, wide area washer and an extra tall 12 point head that accepts a deep socket and eliminates the worry of stripping the head.

Product Features:
  • Ultra Strong Bolt Rated At 200,000 PSI
  • 1/4 Inch Thick, Wide Area Washer And An Extra Tall 12 Point Head That Accepts A Deep Socket And Eliminates The Worry Of Stripping The Head
  • Delivers ARP Quality And Reliability
  • Made In USA
  • 12-Point Head
  • Sold Individually
  • 200,000 PSI
  • 2.470″ Underhead Length
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ARP Auto Racing – For Use With Chevy Small Block, 13/16" Socket Size, 2.470" Under Head L (Part No.234-2501)

For Use With Chevy Small Block, 13/16" Socket Size, 2.470" Under Head L

from

$36.99
As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in position, ARP has developed these ultra strong 200,000 Pounds Per Square Inch bolts that let you exert maximum clamping force. Special features comes with 1/4 Inch thick, wide area washer and an extra tall 12 point head that accepts a deep socket and eliminates the worry of stripping the head.

Product Features:
  • Ultra Strong Bolt Rated At 200,000 Pounds Per Square Inch
  • 1/4 Inch Thick, Wide Area Washer And An Extra Tall 12 Point Head That Accepts A Deep Socket And Eliminates The Worry Of Stripping The Head
  • Delivers ARP Quality And Reliability
  • Made In USA
  • Sold Individually
  • 7/16″-20 RH Thread Size
  • 2.47″ Underhead Length
  • 200,000 PSI
See More

Sealed Power – Engine Piston (Part No.WH423DCP 20)

Engine Piston

from

$17.49
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Hypereutectic
  • Made w/exclusive FM425 material for excellent strength & scuff resistance – allows tighter bore and improves sealing for less blow-by
  • Sophisticated “barrel” profiles help optimize oil wedge between skirt and wall.
  • Piston skirts protected by next-gen DUROSHIELD« coating.
  • TAC┐ ring groove geometry
  • Weight matched to +/- 2 grams.
See More

Sealed Power – Engine Piston (Part No.2773PNA .50MM)

Engine Piston

from

$118.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Cast with FM132 Eutectic proprietary alloy
  • Performance & dependability of original equipment pistons
  • High quality aluminum
  • Utilizes ISO & QS certified manufacturing
  • Meets or exceeds OEM specifications
See More

Sealed Power – Engine Piston (Part No.WH661CP 30)

Engine Piston

from

$53.99
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Helps improve cylinder sealing for less blow-by
  • Retains standard ring gaps in top groove
  • DUROSHIELD« skirt-coated piston
  • Moly-graphite coating extends engine life
  • Reduces friction for higher fuel economy
  • Prevents damage from inadequate lubrication on start-up
See More

Sealed Power – Engine Piston (Part No.WH423DCP 40)

Engine Piston

from

$19.49
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Hypereutectic
  • Made w/exclusive FM425 material for excellent strength & scuff resistance – allows tighter bore and improves sealing for less blow-by
  • Sophisticated “barrel” profiles help optimize oil wedge between skirt and wall.
  • Piston skirts protected by next-gen DUROSHIELD« coating.
  • TAC┐ ring groove geometry
  • Weight matched to +/- 2 grams.
See More

1991 Chevrolet Blazer Engine Internals

Maybe you’re in the middle of a full rebuild of that 1991 Chevrolet Blazer. Maybe you just need a couple of Engine Internals. Either way, Advance Auto Parts has 96 different Engine Internals in our inventory ranging from $1.29 to $233.99. That means you can find the exact parts or products you need to keep that 1991 Chevrolet Blazer running smoothly.

Engine Internals are only as good as their brand. We stock 8 different brands to make sure you have plenty of trusted parts to choose from for your 1991 Chevrolet Blazer. Sealed Power, Mr. Gasket, and Driveworks are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Engine Internals for your 1991 Chevrolet Blazer, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 34 reviews in this category, some of the top rated parts include Engine Crankshaft Main Bearing Set with 5.0 stars and Engine Connecting Rod Bearing Set with 5.0 stars.

So if you’re in the market for aftermarket Engine Internals to keep your 1991 Chevrolet Blazer rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Engine Internals Brands To Make Your 1991 Chevrolet Blazer Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1991 Chevrolet Blazer demands trusted brand parts and products to keep it running. Many trusted brands of Engine Internals make up Advance Auto Parts’ inventory, and all are ready to help make your Blazer the best it can be. Be sure to browse some of our top Engine Internals brands and parts.

Popular Spectre Engine Internals

We carry Spectre parts in our stock across Crankshaft Bolts categories, plus more. For a 1991 Chevrolet Blazer, our most popular Spectre Engine Internals include:
Chevrolet Small Block V8 Harmonic Balancer Bolt Kit
from $7.99
(1)
Chevrolet Small Block V8 Harmonic Balancer Bolt Kit
Crankshaft Bolts

Top 1991 Chevrolet Blazer Engine Internals from Sealed Power

Sealed Power products are another trusted brand when it comes to Engine Internals for your 1991 Chevrolet Blazer. Popular Sealed Power parts include:
Engine Connecting Rod Bearing Set
from $76.99
(4)
Engine Connecting Rod Bearing Set
Standard Rod Bearing Sets
Engine Piston Ring Set
from $84.99
(2)
Engine Piston Ring Set
Standard Piston Rings
Engine Connecting Rod Bearing
from $4.49
(2)
Engine Connecting Rod Bearing
Standard Individual Rod Bearings

FAQs for 1991 Chevrolet Blazer Engine Internals

What are the most purchased Engine Internals for the 1991 Chevrolet Blazer?

Out of 96 Engine Internals for the 1991 Chevrolet Blazer, the most popular in our inventory are:
Ultra Seal: Harmonic Balancer Bolt/Washer Kit
from $13.29
(12)
Ultra Seal: Harmonic Balancer Bolt/Washer Kit
Crankshaft Bolts
Engine Connecting Rod Bearing
from $8.49
(1)
Engine Connecting Rod Bearing
Standard Individual Rod Bearings
Oil Seal
from $7.29
(2)
Oil Seal
Crankshaft Seals

What are the top-rated 1991 Chevrolet Blazer Engine Internals?

Top-rated Engine Internals for your 1991 Chevrolet Blazer based on customer reviews/ratings are:
Engine Crankshaft Main Bearing Set
from $55.99
(2)
Engine Crankshaft Main Bearing Set
“[…]”
Engine Connecting Rod Bearing Set
from $90.99
(1)
Engine Connecting Rod Bearing Set
“fit good and nice price”
Engine Piston Ring Set
from $87.99
(1)
Engine Piston Ring Set
“rebuilding engine restore compression and eliminate oil usage”