Unrivaled Customer Service
And Expert Tech Advice!  
Same Day Shipping Before 11 PM ET
My Cart
Shop By Vehicle
Shop By
Close Menu
Shop By Vehicle
Top Categories
All Categories

Top Categories

All Categories

Free Catalog
E-Mail Signup
My Account
Track Order
Gift Certificates

JEGS Exhaust Manifolds for GM LS Cast Iron

JEGS 30140


jegs shipping
FREE Shipping
Easy Returns
Easy Returns
Lowest Price Guarantee
Lowest Price Guarantee
ON SALE - $130.00 OFF
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

  • 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.


    Manufacturer's Part Number:

    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.


    • 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
    • y_2018, m_8, d_14, h_24CST
    • bvseo_bulk, prod_bvqa, vn_bulk_2.0.8
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_5
    • loc_en_US, sid_10001_10001_3836344, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs
    Items You Need
    Items You May Also Consider
    Some parts are not legal for use in California or other states with similar laws / regulations