Products to Compare (max of 3)
Compare These Parts

Speedway Tech Talk - LS Block Off Plates

Add Article To List

Most people get rid of the emissions when swapping an LS motor into their ride. Speedway Motors offers aluminum block off plates for the EVAP (91680916) and EGR (91680915). In the early days of swapping LS motors, one common way to block off the big EGR port was to go to the local hardware store and pick up an expansion plug. With this good looking aluminum plug you no longer have to see that out of place piece from the kitchen aisle on your motor. Also, these 2 plates come with the correct bolt and O-ring to complete the install.

If you have stock exhaust manifolds, there are 2 plates to pick from; 91680914 and 91680913. Depending on what your LS came out of, you will want to measure the center to center distance of the bolt holes on the manifolds. Item 91680914 measures 1.75” and 91680913 is 1.5”. These plates also come with bolts and a gasket to complete the project.

Products Featured in this Article

Related Articles

How to Install a Wrap-Around 5 Point Harness Tech Talk
This video is a step-by-step guide on how to properly install a wrap-around 5 point harness seat belt. Joe and Kyle also talk about the benefits of the Speedway Motors 5 point harness seat belt combo.
Speedway Tech Talk - Keeping it Classy with Motor Meters
by Pat Orth - Posted in Tech
Speedway Motors employee Pat joins us once again. This time Pat is talking to the Model A and Model T owners, specifically in regards to Moto-Meters and accessories.
Speedway Tech Talk - Beef Up Your '67 - '72 GM Truck
by Pat Orth - Posted in Videos
Pat talks about our 67-72 pickup rear end housing and some of the options we have for it.
Speedway Tech Talk - GPS Your Speedometer
by Pat Orth - Posted in Videos
Pat talks about our GPS module that generates a speed signal to your electronic speedometer.
Speedway Tech Talk - "Speedy" Bill Shotgun Scoop
by Pat Orth - Posted in Videos
Pat show how our Speedy Bill shotgun scoop kit looks installed.
Speedway Tech Talk - CPP '63-'72 Chevy C-10 Mounts
by Pat Orth - Posted in Videos
Pat talks about a few motor mounts we offer for your 1963-1972 Chevy C-10.
Speedway Tech Talk - Rajah Wires for Your Flathead
by Pat Orth - Posted in Videos
Pat talks about our red solid core spark plug wire and rajah ends.
Speedway Tech Talk - Valve Cover Oil Filler Cap
by Pat Orth - Posted in Videos
Tired of pulling your breather to pour oil in your system? We've got you covered.
Speedway Tech Talk - Maintaining Your Headers
by Pat Orth - Posted in Videos
Maintaining your headers is an important part of any hot rod. Pat gives some tips and demonstrates how well Purple Metal Polish works for keeping your headers looking great.
Speedway Tech Talk - Side Mirror with LED Turn Signal
by Pat Orth - Posted in Videos
Our side mirrors with LED turn signals are a quick upgrade you can make to your car to set it apart.