Best Head Gasket Sealer For V8: image
Top Pick

Is a blowout resistant silicone gasket that cures in 90 minutes. The product was developed by Permatex, which claims to have the fastest cure time of any silicone on the market. It has been tested and found to be safe for use in all types of vehicles including diesel engines. Notably, it also reduces fuel consumption by up to 70%. The product can be used with oil pans and other applications.

Value for Money

Permanently Seals Leaking Radiators and Cracked Head Gaskets Blue Devil Engine and Cooling Sealant is a permanent sealant that can be used to fix leaks in radiators, cracked or warped heads. The sealant has been tested on diesel engines and will not harm the engine’s internals. It also prevents corrosion of metal parts by sealing them up. Notably, blue Devil was first introduced in 1927.

Honorable Mention

Blown head gasket repair kit from Bar’s Leaks will fix it in less than an hour. The kit contains anti-freeze compatible sodium silicate sealing liquid and various gasket sealing particles that penetrate gaps and cracks to permanently stop leaks. It can also be used as a replacement for the original gasket. The kit is available at a cost of?5 lakh. Notably, this comes after a customer complained about the service.

Best Head Gasket Sealer For V8

Top 7 Best Head Gasket Sealer For V8

1
Why we chose it
  • Designed to perform under higher torque loads associated with engines that have closely spaced bolt patterns, such as those typically found in import vehicles
  • Withstands temperatures to 450F continuous, and 500F intermittent
  • Sensor-safe, seals instantly, forming a reliable, long lasting elastomeric rubber gasket that outperforms precut gaskets
  • Blowout resistant, allowing leakproof gaskets to be made and put into service in just one minute
  • Resistant to powertrain fluids such as ATF, oil, and coolant
Permatex 25238 The Right Stuff Grey Gasket Maker, 3 oz., Pack of 1: image
92%
customers recommend this product
4.6/ 5
Adhesion5
Easy to use3.7
Value for money3.3
2
Why we chose it
  • Package length: 4.394 cm
  • Package height: 24.206 cm
  • Package width: 8.610 cm
  • Product Type: AUTO ACCESSORY
K&W 401232 Permanent Head Gasket & Block Repair with Nanotechnology - 32 Fl Oz: image
80%
customers recommend this product
4/ 5
Mileage3.6
Value for money3.3
Easy to use3
3

K&W 401224 FiberLock Head Gasket & Block Repair – 32 Fl Oz

677 ratings | 18 offers | 677 Reviews
Price: $34.47$48.32
Why we chose it
  • Easy Pour and Go Formula!
  • “Contains 3 unique technologies. Military-Strength Fibers create multi-layer repair over cracks with a web-like weave. Nanotechnology permanently fixes the smallest cracks and crevices. Cool-X Conditioner lowers operating temperature as it circulates through cooling system.”
  • Works with all antifreeze or plain water.
  • Permanently fixes head gaskets, engine blocks, cooling systems, and cylinder heads.
  • Seals larger holes with less fluid loss than competitive products as proven by lab test (ASTM D6107)
K&W 401224 FiberLock Head Gasket & Block Repair - 32 Fl Oz: image
80%
customers recommend this product
4/ 5
Easy to use3.9
Value for money3.7
Mileage3.6
Top Pick
4
Why we chose it
  • Blowout Resistant
  • Ideal Applications Include Valve Covers, Intake Manifolds, Coolant Flanges, Oil Pans, Timing Covers, Heavy-Duty Truck and Fleet
  • Replaces Precut Gaskets
  • Strong and Fast Seal
  • An additional application nozzle is included in every package for multiple use convenience.
Permatex 25228 The Right Stuff 90 Minute Gasket Maker, Black: image
96%
customers recommend this product
4.8/ 5
Easy to use5
Leak proof4.9
Adhesion4.9
Value for money4.9
Easy to remove3.8
5

STEEL SEAL SSAMZ Head Gasket Repair

176 ratings | 1 offers | 176 Reviews
Price starts from: $1
Why we chose it
  • Warped Cylinder Head
  • Blown Head Gaskets
  • All Types of Head Gasket Failure
  • Now compatible with all types of antifreeze and any vehicle with a water cooled system
  • Steel Seal will work on all vehicles: cars, bikes, vans, pickups, 4x4s, tractors, lorries and boats.
STEEL SEAL SSAMZ Head Gasket Repair: image
72%
customers recommend this product
3.6/ 5
Easy to use3.9
Mileage3.5
Value for money3.5
6

Bar’s Leaks Block Seal Head Gasket Fix

1,133 ratings | 30 offers | 1,133 Reviews
Price: $23.21$49.46
Why we chose it
  • Repairs blown head gaskets
  • Stops block leaks
  • Seals cracked cylinder heads and blocks
  • Contains a combination of antifreeze compatible sodium silicate sealing liquid and various size gasket sealing particles which penetrate gaps & cracks and harden to permanently stop leaks.
Bar's Leaks Block Seal Head Gasket Fix: image
84%
customers recommend this product
4.2/ 5
Value for money4
Mileage3.7
7

BlueDevil 32oz Head Gasket Sealer w/Radiator Flush

170 ratings | 3 offers | 170 Reviews
Price: $64.95$64.99
Why we chose it
  • Permanently Seals Leaking Radiators
  • Permanently Seals Warped & Cracked Heads
  • Permanently Seals Blown Head Gaskets
  • Includes 32oz Head Gasket sealer and 32 oz Flush
  • Permanently Seals Leaking Heater Cores
BlueDevil 32oz Head Gasket Sealer w/Radiator Flush: image
76%
customers recommend this product
3.8/ 5
Value for money3.5
Easy to use3.2
Mileage3.1
Top Pick
Permatex 25228 The Right Stuff 90 Minute Gasket Maker, Black
Are you tired of waiting to road test a vehicle once the job is done? Ever had to hold a customer’s car overnight just to ensure your silicone applications fully cured? Well wait no longer – Introducing The Right Stuff 90 Minute Gasket Maker from Permatex. This superior product not only outperforms conventional pre-cut gaskets, but also cures in just 90 minutes. This is the only silicone on the market available in a squeeze tube that allows record return to service time. The Right Stuff 90 Minute Gasket Maker was formulated to provide a strong and fast high flex silicone seal that offers excellent durability.
Ranking the Brands
Permatex: 28.57%
CRC: 14.29%
K&W: 14.29%
STEEL SEAL: 14.29%
Bar’s Leaks: 14.29%
BlueDevil Products: 14.29%

Comparison Table

Сomparison: Permatex 25238 The Right Stuff Grey Gasket Maker, 3 oz., Pack of 1: imageСomparison: K&W 401232 Permanent Head Gasket & Block Repair with Nanotechnology - 32 Fl Oz: imageСomparison: K&W 401224 FiberLock Head Gasket & Block Repair - 32 Fl Oz: imageСomparison: Permatex 25228 The Right Stuff 90 Minute Gasket Maker, Black: imageСomparison: STEEL SEAL SSAMZ Head Gasket Repair: imageСomparison: Bar's Leaks Block Seal Head Gasket Fix: imageСomparison: BlueDevil 32oz Head Gasket Sealer w/Radiator Flush: image
Permatex 25238 The Right Stuff Grey Gasket Maker, 3 oz., Pack of 1K&W 401232 Permanent Head Gasket & Block Repair with Nanotechnology – 32 Fl OzK&W 401224 FiberLock Head Gasket & Block Repair – 32 Fl OzPermatex 25228 The Right Stuff 90 Minute Gasket Maker, BlackSTEEL SEAL SSAMZ Head Gasket RepairBar’s Leaks Block Seal Head Gasket FixBlueDevil 32oz Head Gasket Sealer w/Radiator Flush
ManufacturerPermatexCRCCRCPermatexSteel Seal LtdBar’s LeaksBlueDevil Products
BrandPermatexK&WPermatexSTEEL SEALBar’s Leaks
Item Weight4.9 ounces1.67 Pounds2.4 pounds3.84 ounces1.32 pounds1.5 pounds2 pounds
Is Discontinued By ManufacturerNoYesNoNo
SizePack of 132 Fluid OuncePack of 1
Product Dimensions3.4 x 3.4 x 9.54 inches1.5 x 3.81 x 8 inches3.15 x 1.57 x 7.87 inches9.5 x 2.6 x 2.5 inches

Products with 5 star rating

Tips and advices on YouTube

Do Head Gasket Sealers Actually Work (FULL 2yr TEST with Engine Teardown)
BlueDevil can do what, Head Gasket Sealer
How to Install BlueDevil Head Gasket Sealer

Other interesting articles about “Best Head Gasket Sealer For V8”

Looking for antifreeze? Our team of experts narrowed down the best antifreeze on the market. Read this review and save yourself time and money.
Start preparing for 8 days, 5200 miles and 17 track events of the best in driving fun!
Related Posts:

Leave a Reply

Your email address will not be published. Required fields are marked *