Gaskets & Sets - Timing Cover Gasket

Standard Jacketed Header - Big Block Chevy Jet Drive 36" Wide
Starting From:
$2,299.99
This Part has options, please click the button below to order.

Lightning Big Block Chevy Jet Drive 36" Wide Standard Jacketed Header

310-40 + Option(s)

Standard Jacketed Header - Big Block Chevy Jet Drive 36" Wide

These headers are designed to be a replacement for Jet manifolds. However, they terminate approximately 8" aft of stock manifolds and are projected to meet the exhaust tips providing they are in the stock location. Headers will have about 1/2" clearance between header and tall Moroso valve covers. Headers come complete with bolts, gaskets, water fittings, pet cocks, etc. (less 4" hose and 4" hose clamps). Factory oil filter requires relocation.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of your engine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but the actual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaust gas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it gets reduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openings consider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330 hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain up to 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes are then mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while the exterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option they are able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.


Lightning Exhaust Dry Headers for Big Block Chevy Applications (Quote Only)

Starting From:
$0.00
This Part has options, please click the button below to order.

Lightning Exhaust Dry Headers for Big Block Chevy Applications (Quote Only)

310-Dry-Headers + Option(s)

NOTE: All Lightning Headers are now built to order by quote only. Please select your options below and we will have a price and turn around time quoted to you as soon possible. Please make sure your contact information (e-mail address and phone number) are correct when placing an order for a quote. 

All orders of Lightning Headers will require you to provide measurements, see these diagrams:

Lightning Jet Headers
Lightning Mercury Headers
Lightning Generic Headers

Please select all the options below you wish to have on your headers. By ordering this item you are asking for a quote only. 

FREE GROUND SHIPPING TO THE LOWER 48 UNITED STATES!


Lightning Exhaust Headers for 460 Ford Applications (Quote Only)

Starting From:
$0.00
This Part has options, please click the button below to order.

Lightning Exhaust Headers for 460 Ford Applications (Quote Only)

310-Headers-460 + Option(s)

NOTE: All Lightning Headers are now built to order by quote only. Please select your options below and we will have a price and turn around time quoted to you as soon possible. Please make sure your contact information (e-mail address and phone number) are correct when placing an order for a quote. 

All orders of Lightning Headers will require you to provide measurements, see these diagrams:

Lightning Jet Headers
Lightning Generic Headers

NOTE: All 460 Ford Lightning Headers use adapters to mount to engine.

Please select all the options below you wish to have on your headers. By ordering this item you are asking for a quote only.

FREE GROUND SHIPPING TO THE LOWER 48 UNITED STATES!


Lightning Exhaust Headers for 8.1L / 496 Applications (Quote Only)

Starting From:
$0.00
This Part has options, please click the button below to order.

Lightning Exhaust Headers for 8.1L / 496 Applications (Quote Only)

310-Headers-496 + Option(s)

NOTE: All Lightning Headers are now built to order by quote only. Please select your options below and we will have a price and turn around time quoted to you as soon possible. Please make sure your contact information (e-mail address and phone number) are correct when placing an order for a quote. 

All orders of Lightning Headers will require you to provide measurements, see these diagrams:

Lightning Jet Headers
Lightning Mercury Headers
Lightning Generic Headers

Please select all the options below you wish to have on your headers. By ordering this item you are asking for a quote only. 

FREE GROUND SHIPPING TO THE LOWER 48 UNITED STATES!


Lightning Exhaust Headers for Big Block Chevy Jet / V-Drive (Quote Only)

Starting From:
$0.00
This Part has options, please click the button below to order.

Lightning Exhaust Headers for Big Block Chevy Jet / V-Drive (Quote Only)

310-Headers-BBC-Jet + Option(s)

NOTE: All Lightning Headers are now built to order by quote only. Please select your options below and we will have a price and turn around time quoted to you as soon possible. Please make sure your contact information (e-mail address and phone number) are correct when placing an order for a quote. 

All orders of Lightning Headers will require you to provide measurements, see these diagrams:

Lightning Jet Headers

Please select all the options below you wish to have on your headers. By ordering this item you are asking for a quote only. 

FREE GROUND SHIPPING TO THE LOWER 48 UNITED STATES!


Lightning Exhaust Headers for LS Applications (Quote Only)

Starting From:
$0.00
This Part has options, please click the button below to order.

Lightning Exhaust Headers for LS Applications (Quote Only)

310-Headers-LS + Option(s)

NOTE: All Lightning Headers are now built to order by quote only. Please select your options below and we will have a price and turn around time quoted to you as soon possible. Please make sure your contact information (e-mail address and phone number) are correct when placing an order for a quote. 

All orders of Lightning Headers will require you to provide measurements, see these diagrams:

Lightning Jet Headers
Lightning Mercury Headers
Lightning Generic Headers

Please select all the options below you wish to have on your headers. By ordering this item you are asking for a quote only. 

FREE GROUND SHIPPING TO THE LOWER 48 UNITED STATES!


Lightning Exhaust Headers for Mercruiser Big Block Chevy (Quote Only)

Starting From:
$0.00
This Part has options, please click the button below to order.

Lightning Exhaust Headers for Mercruiser Big Block Chevy (Quote Only)

310-Headers-BBC-Merc + Option(s)

NOTE: All Lightning Headers are now built to order by quote only. Please select your options below and we will have a price and turn around time quoted to you as soon possible. Please make sure your contact information (e-mail address and phone number) are correct when placing an order for a quote. 

All orders of Lightning Headers will require you to provide measurements, see these diagrams:

Lightning Mercury Headers

Please select all the options below you wish to have on your headers. By ordering this item you are asking for a quote only. 

FREE GROUND SHIPPING TO THE LOWER 48 UNITED STATES!


Lightning Exhaust Headers for Small Block Chevy Applications (Quote Only)

Starting From:
$0.00
This Part has options, please click the button below to order.

Lightning Exhaust Headers for Small Block Chevy Applications (Quote Only)

310-Headers-SBC + Option(s)

NOTE: All Lightning Headers are now built to order by quote only. Please select your options below and we will have a price and turn around time quoted to you as soon possible. Please make sure your contact information (e-mail address and phone number) are correct when placing an order for a quote. 

All orders of Lightning Headers will require you to provide measurements, see these diagrams:

Lightning Jet Headers
Lightning Mercury Headers
Lightning Generic Headers

Please select all the options below you wish to have on your headers. By ordering this item you are asking for a quote only. 

FREE GROUND SHIPPING TO THE LOWER 48 UNITED STATES!


Timing Cover Gasket Set GM 8.1L
Your Price:
$47.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Timing Cover Gasket Set GM 8.1L

676-9-61604

Timing Cover Gasket Set
Replaces: Mercruiser / Volvo / Crusader
For: GM 8.1L
Our outdrive mounting gaskets are more tear resistant than the OEM and other aftermarket competitors and feature our exclusive “anti-stick” coating for easy removal the next time they need replaced.


Timing Cover Gasket Set Mercruiser 27-14250
Your Price:
$3.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Timing Cover Gasket Set Mercruiser 27-14250

676-9-61600

Timing Cover Gasket Set
Replaces: Mercruiser 27-14250, 27-34897@2
For: SB Chev 1963-95, 4.3L V6 1983-92
Our outdrive mounting gaskets are more tear resistant than the OEM and other aftermarket competitors and feature our exclusive “anti-stick” coating for easy removal the next time they need replaced.


Timing Cover Gasket Set Mercruiser 27-34213A2
Your Price:
$13.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Timing Cover Gasket Set Mercruiser 27-34213A2

676-9-61603

Timing Cover Gasket Set
Replaces: Mercruiser 27-34213A2
For: GM 120/140
Our outdrive mounting gaskets are more tear resistant than the OEM and other aftermarket competitors and feature our exclusive “anti-stick” coating for easy removal the next time they need replaced.


Timing Cover Gasket Set Mercruiser 27-49953
Your Price:
$2.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Timing Cover Gasket Set Mercruiser 27-49953

676-9-61602

Timing Cover Gasket Set
Replaces: Mercruiser 27-49953
For: GM 120,140,160/165,2.5L,3.0L/LX 1963-up
Our outdrive mounting gaskets are more tear resistant than the OEM and other aftermarket competitors and feature our exclusive “anti-stick” coating for easy removal the next time they need replaced.


Timing Cover Gasket Set Mercruiser 27-54529
Your Price:
$9.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Timing Cover Gasket Set Mercruiser 27-54529

676-9-61601

Timing Cover Gasket Set
Replaces: Mercruiser 27-54529, 27-49110@2
For: BB Chev 427,454,482,502 1966-92
Our outdrive mounting gaskets are more tear resistant than the OEM and other aftermarket competitors and feature our exclusive “anti-stick” coating for easy removal the next time they need replaced.


Timing Cover Seal Mercruiser 26-56866
Your Price:
$19.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Timing Cover Seal Mercruiser 26-56866

676-9-61611

Timing Cover Seal
Replaces: Mercruiser 26-56866
Fits: Ford V8 5.0L/302
Mallory Marine offers better late model coverage for outboards than most other aftermarket companies including coverage for import engines such as Yamaha, Nissan / Tohatsu and Suzuki in addition to the most common domestic models. Every gasket sealing application is unique in its own way that's why our gaskets are manufactured from the latest in high tech materials to achieve the best performance for each specific application.

    Outboard Gasket Features
  • Head gaskets with Stainless Steel fire rings
  • Silicone beading in critical hard to seal areas
  • Advanced micro-pore technology materials in many applications for ultimate performance


Timing Cover Seal Mercruiser 26-8219471
Your Price:
$19.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Timing Cover Seal Mercruiser 26-8219471

676-9-61612

Timing Cover Seal
Replaces: Mercruiser 26-8219471
Fits: GM BB
Mallory Marine offers better late model coverage for outboards than most other aftermarket companies including coverage for import engines such as Yamaha, Nissan / Tohatsu and Suzuki in addition to the most common domestic models. Every gasket sealing application is unique in its own way that's why our gaskets are manufactured from the latest in high tech materials to achieve the best performance for each specific application.

    Outboard Gasket Features
  • Head gaskets with Stainless Steel fire rings
  • Silicone beading in critical hard to seal areas
  • Advanced micro-pore technology materials in many applications for ultimate performance


Timing Cover Seal Mercruiser 26-97335
Your Price:
$23.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Timing Cover Seal Mercruiser 26-97335

676-9-61610

Timing Cover Seal
Replaces: Mercruiser 26-97335
GM 2.5L, 3.0L, 4.3L, 5.0L, 5.7L
Mallory Marine offers better late model coverage for outboards than most other aftermarket companies including coverage for import engines such as Yamaha, Nissan / Tohatsu and Suzuki in addition to the most common domestic models. Every gasket sealing application is unique in its own way that's why our gaskets are manufactured from the latest in high tech materials to achieve the best performance for each specific application.

    Outboard Gasket Features
  • Head gaskets with Stainless Steel fire rings
  • Silicone beading in critical hard to seal areas
  • Advanced micro-pore technology materials in many applications for ultimate performance