Also, this guide does not cover the supercharged LSA and LS9 intakes, since they’re an integrated part of the supercharger assembly. The LS7 is the lone wolf in the entire lineup, with a wider bolt pattern and larger intake ports, so there’s no interchangeability. The earlier engines had cathedral-port cylinder heads while the latter generation sported rectangular-port heads. Though these are aftermarket manifolds, they demonstrate the difference between rectangular port (left) and cathedral port designs.įoremost is the difference between Gen III and Gen IV.
#Ls1 intake manifold how to#
According to author Will Handzel’s excellent book, How to Build High-performance Chevy LS1/LS6 V8s, those stands were needed to control resonance produced from the flat floor, so there obviously was a learning curve with this new material. Cut open one of these intakes and you’ll find three pillars supporting the flow tubes over the base. It was lightweight and flowed well, given the dimensional restrictions placed on the engineers when the C5 Corvette was designed. The first manifold for the LS1 Corvette engine was constructed from about eight pounds of injected nylon.
#Ls1 intake manifold update#
We’ll certainly update it as readers identify mistakes and help verify the correction.Īmong the numerous innovations introduced with the LS engine line was the use of composite intake manifolds for both the car and truck versions of the V8. We checked them out with a reliable parts source and the comment that came back said, “This shows ZERO OEM applications in the GM catalog, however it is a good part number.” There may be an occasional discrepancy due to new or discontinued parts numbers, but this list as close to complete and accurate as any other directory available online. In fact, just as this story was completed, two more numbers (8901737363) were discovered on an internet forum. Again, this guide will help identify intakes at swap meets, junkyards or even checking out listings online.Ī note of caution: this list was compiled from a variety of sources and is not guaranteed to be all-inclusive. Sometimes a salvage yard engine will be missing an intake, or perhaps the goal is to build a LS engine from scratch. With millions of LS engines installed in production GM vehicles over 16 years, there are plenty available for swaps into older cars and trucks. There’s even a V6 version of the LT small-block. That’s when the LS family was replaced by the current Gen V LT engine group, again, designed for use across the car, SUVs and pickup segments. LS engines were produced for cars and trucks from 1997 through the 2013 model year. Everything else changed, including the cylinder block deck height, the firing order, and the connecting rod length. In fact, there’s very little in common between Gen II and Gen III/IV LS engines other than a few dimensions like the 4.40-inch bore spacing and a 2.10-inch rod journal. It does not store any personal data.Millions of LS engines were produced and are now favorites for swaps into early model cars and trucks. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
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