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View All JEGS Cast Iron Exhaust Manifolds

JEGS Exhaust Manifolds for GM LS Cast Iron

Part Number: 555-30140

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$329.99

$199.99

ON SALE - $130.00 OFF

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JEGS Exhaust Manifolds for GM LS Cast Iron $199.99

Exhaust Manifolds

GM LS (except LS7 & LS9)

Collector Diameter: 2.250 in.

Raw Cast Iron

Sold as a Pair

Includes Gaskets

Details
Overview
Reviews
Q & A

JEGS 30140 Details

LS Exhaust Manifold

Note: Fitment issues may occur with models equipped with air conditioning. Modification to brackets may be required. Not compatible with 2004-2006 GTO starters/bellhousings.

Specifications:

Manufacturer's Part Number:

30140

JEGS Cast Iron Exhaust Manifolds are designed to fit close to the engine block and provide years of leak free performance. The tucked-in design directs exhaust to the exit port for improved flow and allows you to route exhaust tubing close to your frame/floor pan for maximum ground clearance. These manifolds are intended for most GM LS engine swaps where durability, quiet operation, and a leak-free seal is desired.

Features:

Recommended for engines up to 500 horsepower
Tight design provides universal fit for most popular chassis
Free-flowing for catalytic converter efficiency
Cast Iron to provide endurance and corrosion resistance
2-bolt exit flange
Raw or ceramic finish
Can be used with OE gaskets & fasteners

I don't see flange gaskets in the pictured details. What type of gasket does this 2-bolt style flange use? What part number, and do you offer it? Thanks, Scott

Asked by: york10

This works with the factory manifold gasket - https://www.jegs.com/i/Chevrolet-Performance/809/92202326/10002/-1

Answered by: Rusty B

Date published: 2018-05-06

thanks Rusty ; would this be a direct fit , bolting to existing exhaust .

Asked by: oldschool1900

They may, but there are many different exhaust systems on these application. You will need to check.

Answered by: Rusty B

Date published: 2018-04-04

i have a 1996 caprice police package, will these fit ?

Asked by: oldschool1900

Yes, if you have an LS engine in your Caprice.

Answered by: Rusty B

Date published: 2018-03-29

Will these fit a 2005 Silverado LS standard cab 5.3 liter 

Asked by: Btucker52

Yes, this could work on your truck.

Answered by: Dean R

Date published: 2017-12-19

I've got a 2000 Silverado Z71 LS w/5.3. (325 ci)3 door pickup. Will these work with my application. It has 2.5" dual exhaust connected to 3" inlet 2.5" outlet w/45° angle bends pipes w/polished stainless steel tips coming out each side of rear!

Asked by: Custom LS

These will not fit 2000 Silverado,

Answered by: Jegs Tech Bob

Date published: 2017-08-23

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Some parts are not legal for use in California or other states with similar laws / regulations

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JEGS Exhaust Manifolds for GM LS Cast Iron

Part Number: 555-30140

JEGS 30140 Details

Specifications:

I don't see flange gaskets in the pictured details. What type of gasket does this 2-bolt style flange use? What part number, and do you offer it? Thanks, Scott

thanks Rusty ; would this be a direct fit , bolting to existing exhaust .

i have a 1996 caprice police package, will these fit ?

Will these fit a 2005 Silverado LS standard cab 5.3 liter

I've got a 2000 Silverado Z71 LS w/5.3. (325 ci)3 door pickup. Will these work with my application. It has 2.5" dual exhaust connected to 3" inlet 2.5" outlet w/45° angle bends pipes w/polished stainless steel tips coming out each side of rear!

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JEGS Exhaust Manifolds for GM LS Cast Iron

Part Number: 555-30140

JEGS 30140 Details

Specifications:

I don't see flange gaskets in the pictured details. What type of gasket does this 2-bolt style flange use? What part number, and do you offer it? Thanks, Scott

thanks Rusty ; would this be a direct fit , bolting to existing exhaust .

i have a 1996 caprice police package, will these fit ?

Will these fit a 2005 Silverado LS standard cab 5.3 liter&nbsp;

I've got a 2000 Silverado Z71 LS w/5.3. (325 ci)3 door pickup. Will these work with my application. It has 2.5&quot; dual exhaust connected to 3&quot; inlet 2.5&quot; outlet w/45&deg; angle bends pipes w/polished stainless steel tips coming out each side of rear!

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Customer Care

Help

JEGS Online

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Will these fit a 2005 Silverado LS standard cab 5.3 liter

I've got a 2000 Silverado Z71 LS w/5.3. (325 ci)3 door pickup. Will these work with my application. It has 2.5" dual exhaust connected to 3" inlet 2.5" outlet w/45° angle bends pipes w/polished stainless steel tips coming out each side of rear!