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Product Summary

Gasket(s) Included, Hardware Included

  • Air block-off plates are intended for use on non-pollution controlled, off-road vehicles only
  • To be used for GM LS engines only
  • Includes hardware, gaskets and o-rings
  • Includes LS Air Block Off Plate, LS EGR Exhaust Block Off Plate, LS EVAP Delete Plug, LS EGR Intake Plug
  • Versatile design for an easy installation

Comes as a Kit

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Key Specs

MFG. Part #91604001
BrandSpeedway Motors
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Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 91604001 Details

These air block-off plates are intended for use on non-pollution controlled, off-road vehicles only. To be used for GM LS engines only. Includes hardware, gaskets and o-rings.

  • (1) LS Air Block Off Plate
    • Centerline of Holes: 1.50"
    • Material Thickness: .38"
  • (1) LS EGR Exhaust Block Off Plate
    • Centerline of Holes: 1.70"
    • Material Thickness: .38"
  • (1) LS EVAP Delete Plug
    • Stem o/d that extends into engine is 0.479"
    • Stem overall length is 0.375"
  • (1) LS EGR Intake Plug

Speedway Motors 91604001 Specifications

KEY SPECS
MFG. Part #91604001
BrandSpeedway Motors
GENERAL
Gasket(s) IncludedYes
Hardware IncludedYes
Sold in QuantityKit

Ratings & Reviews

5

12 Reviews

Overall Assessment

Customers praise our product for its quality, design, and practicality. They mention it works exceptionally well for LS conversions, aspirating it with consistency and effectiveness. They also commend on the product simplicity, stating that it makes tasks easier, performs as expected, and generally provides excellent value for money. Consumers also acknowledge the ease of installation, illustrating the product's superior usability compared to other brands.

5

12 reviews

5

12

4

0

3

0

2

0

1

0

Filter by Ratings

Prouduct works as intended

5.0

14 days ago

Eagle

Friendswood, TX

Verified

Easy installation

👍🏻👍🏻👍🏻

5.0

4 months ago

RD

Lou,Ky

Verified

👍🏻👍🏻👍🏻

Would Recommend

Worked as advertised for my Ls swap

5.0

a year ago

Josh

Wyoming

Verified

Needed block offs for unused sensors

Would Recommend

Great product

5.0

2 years ago

Sam

Dickson,tn

Verified

I would buy again

Worked great

5.0

2 years ago

Project Blue Jacket

Texas

Verified

LS conversion in my 83 Monte Carlo

Would Recommend

I would buy this product again

5.0

3 years ago

Ken Dog

Macon Mo

Verified

Product worked out just fine. No problems

Would Recommend

Great design, works as described.

5.0

4 years ago

Why do I need a nickname

Main ST USA

Verified

Perfect product. Does the job for less than some other brands.

Would Recommend

Fast shipping

5.0

4 years ago

Mc

Nola

Verified

Parts came quick and everything was right

great product

5.0

4 years ago

GHE

DFW, TX

Verified

These block off plates make things a breeze

Would Recommend

YOU HAVE TO GET THIS!!!

5.0

5 years ago

DC

Colorado

Verified

I used this product it works great!!!

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Showing 10 of 12 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 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 LS2

Customer Impersonation Script