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Cometic Chevy BB Gen IV 396/402/427/454 H/G 4.320 inch Bore .098 inch MLS Head Gasket

Head Gaskets

Cometic Chevy BB Gen IV 396/402/427/454 H/G 4.320 inch Bore .098 inch MLS Head Gasket

Regular price $152.63
Sale price $152.63 Regular price $169.59
Cometic Chevy BB Gen IV 4.320in Bore .062 inch MLS-5 396/402/427/454 Head Gasket

Head Gaskets

Cometic Chevy BB Gen IV 4.320in Bore .062 inch MLS-5 396/402/427/454 Head Gasket

Regular price $141.28
Sale price $141.28 Regular price $156.98
Cometic Chevy BB Head Gasket 4.375in Bore .051in MLS 396/402/427/454 Head Gasket

Head Gaskets

Cometic Chevy BB Head Gasket 4.375in Bore .051in MLS 396/402/427/454 Head Gasket

Regular price $103.89
Sale price $103.89 Regular price $115.44
Cometic Chevy Big Block 4.320in Bore 0.043in Copper Round Bore Head Gasket

Head Gaskets

Cometic Chevy Big Block 4.320in Bore 0.043in Copper Round Bore Head Gasket

Regular price $131.11
Sale price $131.11 Regular price $145.68
Cometic Chevy Big Block 4.530in Bore 0.043in Copper Head Gasket

Head Gaskets

Cometic Chevy Big Block 4.530in Bore 0.043in Copper Head Gasket

Regular price $131.11
Sale price $131.11 Regular price $145.68
Cometic Chevy Big Block 4.630in Bore 0.043in Copper Head Gasket

Head Gaskets

Cometic Chevy Big Block 4.630in Bore 0.043in Copper Head Gasket

Regular price $131.11
Sale price $131.11 Regular price $145.68
Cometic Chevy Big Block Brodix Big Duke/Big Brodie Heads 4.31in Bore .080in MLS Head Gasket

Head Gaskets

Cometic Chevy Big Block Brodix Big Duke/Big Brodie Heads 4.31in Bore .080in MLS Head Gasket

Regular price $142.24
Sale price $142.24 Regular price $158.05
Cometic Chevy Big Block Brodix Big Duke/Big Brodie Heads 4.57in Bore .040in MLS Head Gasket

Head Gaskets

Cometic Chevy Big Block Brodix Big Duke/Big Brodie Heads 4.57in Bore .040in MLS Head Gasket

Regular price $90.53
Sale price $90.53 Regular price $100.59
Cometic Chevy Big Block Brodix Big Duke/Big Brodie Heads 4.57in Bore .060in MLS Head Gasket

Head Gaskets

Cometic Chevy Big Block Brodix Big Duke/Big Brodie Heads 4.57in Bore .060in MLS Head Gasket

Regular price $130.96
Sale price $130.96 Regular price $145.51
Cometic Chevy Big Block Brodix Big Duke/Big Brodie Heads 4.63in Bore .027in MLS Head Gasket

Head Gaskets

Cometic Chevy Big Block Brodix Big Duke/Big Brodie Heads 4.63in Bore .027in MLS Head Gasket

Regular price $90.53
Sale price $90.53 Regular price $100.59
Cometic Chevy Big Block Brodix Big Duke/Big Brodie Heads 4.63in Bore .080in MLS Head Gasket

Head Gaskets

Cometic Chevy Big Block Brodix Big Duke/Big Brodie Heads 4.63in Bore .080in MLS Head Gasket

Regular price $142.24
Sale price $142.24 Regular price $158.05
Cometic Chevy Big Block V8 Single Split Rear Main Seal

Gasket Kits

Cometic Chevy Big Block V8 Single Split Rear Main Seal

Regular price $82.61
Sale price $82.61 Regular price $91.78
Cometic Chevy Gen-4/5 Big Block V8 Timing Cover Gasket .031in Fiber - 10 Pack

Gasket Kits

Cometic Chevy Gen-4/5 Big Block V8 Timing Cover Gasket .031in Fiber - 10 Pack

Regular price $49.60
Sale price $49.60 Regular price $55.11
Cometic Chevy Gen-4/5/6 Big Block V8 Timing Cover Seal - 10 Pack

Gasket Kits

Cometic Chevy Gen-4/5/6 Big Block V8 Timing Cover Seal - 10 Pack

Regular price $55.59
Sale price $55.59 Regular price $61.76
Cometic Chevy Mark IV Big Block V8 Rear Main Seal 2 Pc Double Split Seal Wet & Dry Sump 86665

Gasket Kits

Cometic Chevy Mark IV Big Block V8 Rear Main Seal 2 Pc Double Split Seal Wet & Dry Sump 86665

Regular price $92.52
Sale price $92.52 Regular price $102.80
Cometic Chevy Mark IV Big Block V8 Timing Cover Seal Jesel Belt Drive Dual Lip Wet & Dry Sump 86622

Gasket Kits

Cometic Chevy Mark IV Big Block V8 Timing Cover Seal Jesel Belt Drive Dual Lip Wet & Dry Sump 86622

Regular price $69.95
Sale price $69.95 Regular price $77.73
Cometic Chevy Mark-IV Big Block V8 .031in Fiber Intake Mani Gasket Set

Intake Gaskets

Cometic Chevy Mark-IV Big Block V8 .031in Fiber Intake Mani Gasket Set

Regular price $26.78
Sale price $26.78 Regular price $29.76
Cometic Chevy Mark-IV Big Block V8 .039in Fiber Intake Mani Gasket Set

Intake Gaskets

Cometic Chevy Mark-IV Big Block V8 .039in Fiber Intake Mani Gasket Set

Regular price $26.78
Sale price $26.78 Regular price $29.76
Cometic Chevy Mark-IV Big Block V8 .047in Fiber Intake Mani Gasket Set

Intake Gaskets

Cometic Chevy Mark-IV Big Block V8 .047in Fiber Intake Mani Gasket Set

Regular price $26.78
Sale price $26.78 Regular price $29.76
Cometic Chevy Mark-IV Big Block V8 .047in Fiber Intake Mani Gasket Set

Intake Gaskets

Cometic Chevy Mark-IV Big Block V8 .047in Fiber Intake Mani Gasket Set

Regular price $26.78
Sale price $26.78 Regular price $29.76

About Pure Auto Performance

Pure Auto Performance started with a simple idea: helping people find quality parts they can trust without the stress and confusion that usually comes with upgrading a car. We’re enthusiasts just like you, and we know how much pride goes into every build. Whether it’s improving a daily driver or working on a long-term project, the right part can make your car feel brand new again. That’s why we put care into everything we offer, choosing products that genuinely make a difference on the road.

We also believe car parts should be more than just nice to look at they should last, perform well, and fit the vision each driver has. Some customers prefer clean, subtle upgrades, while others love bold changes that completely transform their vehicle. No matter the style, our goal is to make the process easy, honest, and enjoyable. At Pure Auto Performance, we’re here to support you at every step so you can build a car that feels right for you. This brand is more than a store. It’s a community of people who love driving and want the best for their cars.

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30 Days Free Returns
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24/7 Customer Support
High Quality Parts