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Ls1 Custom Air Filter Housing


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The LS1 conversion were doing here at the shop is off to the upholstery shop and will be completed in the next several weeks. One of the things that bugged everyone here was the air filter choices for this conversion. No one really had an assembly that looked similar to a factory style set up. The KN style cone filter hanging out in front of the radiator was just not in keeping with the rest of the build . I thought I'd post a couple of pics on our solution to the problem.

 

After everything is in place there are only one or two locations that are suitable to hold the air filter assy. We decided to use the front section of the l/fender inner apron. We used a KN # 3130 filter and some intake ducting from JCI . The large holes in the core support that many run the ducting through are large enough to flow a good amount of air into the engine compartment . We decided to mount the filter directly behind these factory holes in the l/side of the core support.

 

The front section of the l / inner apron needs to be reshaped slightly with a rubber mallet to give just a little extra clearance for the filter to angle down into the corner of the compartment.

 

To make a filter housing was not that difficult . First a construction paper box was made to fit everything together. Its much easier to fine tune shapes and brackets with scissors , paper and masking tape than to continually reform metal to you get it to fit. Once the pattern shapes were established. They were transfered to some 20 guage sheetmetal and cut to fit. There was a small amount of welding necessary mostly to the rear edge of the box. The side and top panel spent some time on the english wheel since they needed some forming to contour around the support, radiator hose and filter. Once all was formed and welded together a final test fit was done before refinishing with a textured coating and semi gloss black paint. We used many of the factory mounting holes and nuts. The test drive of the assembly checked out well.

 

 

 

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We got a little carried away and decided the top of the LS1 needed a little different look also.

 

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Finished and installed

 

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