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Product Summary

1.75" Centerline of Holes, .38" Material Thickness

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    Key Specs

    MFG. Part #91680914
    BrandSpeedway Motors
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    Need To Know

    Quick and Easy Returns

    Return Policy

    Speedway Motors 91680914 Details

    As featured on Classic Truck’s Week to Wicked. Watch the transformation here!

    These EGR exhaust block-off plates are intended for use on non-pollution controlled, off-road vehicles only.

    • For GM LS engines
    • Hardware and O-ring are included
    • Measures 1-3/4" center-to-center on bolt holes

     

    CARB Warning

    For race/ off road use or for use on pre-1966 vehicles.

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

    Speedway Motors 91680914 Specifications

    KEY SPECS
    MFG. Part #91680914
    BrandSpeedway Motors
    GENERAL
    Centerline of Holes1.75"
    Material Thickness.38"
    Gasket(s) IncludedYes
    Hardware IncludedYes
    Material TypeAluminum
    FinishNatural
    Sold in QuantityEach
    Notes.38 INCH THICK,1.38 INCH WIDE,2.50 INCH LONG. 1.75 INCH HOLE CENTERS.

    Ratings & Reviews

    4.8

    11 Reviews

    Overall Assessment

    Customers praise the product for its excellent fit, great finish, and good quality. Reviews highlight the product's functionality, particularly for LS swap in C10, emphasizing its ease of installation, even without removing headers. Customers appreciate the product description and use information, claiming that it helped with the perfect installation. Its appeal and practicality are underscored by comments such as 'fits good’ and 'fit like a glove'. It is seen as value for money given its superior features. However, one aspect to improve could include providing more and higher-quality hardware such as longer bolts, lock washers, and nuts.

    4.8

    11 reviews

    5

    9

    4

    2

    3

    0

    2

    0

    1

    0

    Filter by Ratings

    I liked the quality of the parts.

    5.0

    5 months ago

    Monte

    Washington State

    Verified

    I used these parts for capping off the exhaust manifold fittings for the factory AIR injection system as that system has now been taken out on my 1999 Corvette. The one issue is that these parts are a little bigger than factory flange fittings on the exhaust manifolds therefore they only bolt up correctly on one side of the bolt holes. Can still be used but will have to seal off the other side.

    Would Recommend

    Good product

    5.0

    2 years ago

    T

    Texas

    Verified

    Solid product

    Would Recommend

    Nicely finished part

    5.0

    2 years ago

    Ben

    San Jose CA

    Verified

    Using on LS swap in C10

    Works great!

    5.0

    3 years ago

    D

    Ar

    Verified

    Great fit.

    Would Recommend

    Perfect fit

    5.0

    3 years ago

    Lorenzo

    El Paso

    Verified

    Although it took me while to find what I needed on Google, when I finally came across SpeedwayMotors, I knew I had what I needed. Great description of product and its use and I was able to install perfectly without removing headers or any problems. Definitely would recommend when deleting EGR from LS engines

    Would Recommend

    Great product

    5.0

    4 years ago

    Kirby Hallock

    Mansfield,ohio

    Verified

    Really nice piece for the price

    Would Recommend

    Its a baaaaaaaadddd boy i tell u what

    5.0

    4 years ago

    Dorito

    Texas, cali

    Verified

    It fits good

    Would Recommend

    i would buy again if needed

    5.0

    7 years ago

    old guy

    southern indiana

    Verified

    fit like a glove

    Would Recommend

    I'd buy again!

    5.0

    8 years ago

    Juan

    Salt Lake City , Utah

    Verified

    Works and looks great.

    Would Recommend

    NOT BAD

    4.0

    8 years ago

    JIMBO

    NEW ORLEANS

    Verified

    IT WOULD HAVE HAD 5 STARS IF IT HAD MORE HARDWARE FACTORY MANIFOLDS ARE TAPED AND THREADED MY NEW HEADERS ARE NOT. WILL HAVE TO FIND LONGER BOLTS THAT HAVE A CONCAVED HEAD AND LOCK WASHERS AND NUTS. BUT THE PLATE ITSELF IS TOP NOTCH. I KNOW IM WHINNING I WILL MAKE IT WORK

    Would Recommend

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    Showing 10 of 11 reviews

    Fitment

    • GM LM4

    • GM LS2

    • GM LSA

    • GM LM7

    • GM LQ9

    • 6.2 Chevy LS V8

    • GM LM7

    • GM LQ9

    • 6.2 Chevy LS V8

    • GM LM7

    • GM LQ9

    • 6.2 Chevy LS V8

    • GM L76

    • GM LC9

    • GM LMG

    • GM LY5

    • GM LY5

    • GM LM7

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • GM LS1

    • GM LS1

    • GM LS2

    • GM LS4

    • GM LS4

    • 4.8 Chevy LS V8

    • GM LM7

    • 4.8 Chevy LS V8

    • GM L20

    • GM LM7

    • GM LY2

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ9

    • GM LQ4

    • GM LM7

    • GM LQ4

    • GM LQ9

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LM4

    • GM LMG

    • GM LY5

    • GM LM7

    • GM L59

    • GM LM7

    • GM LC9

    • GM LMG

    • GM LY5

    • GM LC9

    • GM LMG

    • GM LMG

    • GM LY5

    • GM LQ4

    • GM LMG

    • GM LY5

    • 4.8 Chevy LS V8

    • GM L59

    • GM LM7

    • 4.8 Chevy LS V8

    • GM LMG

    • GM LY5

    • 6.2 Chevy LS V8

    • GM LC9

    • GM LMG

    • GM LC9

    • GM LMG

    • GM LMG

    • GM LY5

    • GM LH6

    • GM LS2

    • GM LM4

    • GM LM4

    • GM LM4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LQ4

    • GM L20

    • GM LC9

    • GM LMG

    • GM L33

    • GM L59

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L20

    • GM LM7

    • GM LY2

    • GM LC9

    • GM LMG

    • GM LM7

    • GM L59

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • 6.2 Chevy LS V8

    • GM LH8

    • GM LH8

    • GM LS1

    • GM LS1

    • GM LS2

    Customer Impersonation Script