WebFeb 13, 2012 · INTERNAL ENGINE MODIFICATIONS - 5.3 with flat top pistons & 706 heads with valve job - Building a 5.3 and thinking about flat top pistons with the stock 706/862 heads. If i get some 2.0 intake valves from say a 317 and have a performance valve job done is this a good plan and what will the CR be? WebMar 21, 2024 · The 5.3L LS Engine Family The 5.3L LS, or Vortec 5300, is primarily a truck/SUV engine that spanned both the Gen. III and Gen. IV versions of the GM LS …
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WebApr 27, 2016 · GM has produced so many variations of the LS engine that it will make your head spin. All of these engines are the same family, use compatible parts, and use similar engine codes. LS1, LS6, LS4, LS2, LS3/L99, LSA, LS9, and LS7 are the main ones you need to know. There are also many other LS-based engines out there such as various … WebJul 25, 2011 · 5.3 to 5.7 ls1 there is a book titled "how to build high performance chevy ls1/ls6 v-8s" by Will Handzel that explaines this in great detail including GM part numbers for needed parts.The 5.3 cast iron block needs to be bored to 99 mm.but the block should have enough "meat"to allow machining that far. Jul 24, 2011 #9 ctchap70 Veteran Member over the air radio
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WebMar 4, 2024 · It’s worth noting that the 5.3-liter displacement V8 first made an appearance in generation three of GM’s small-block engine family. This is due to the fact that these … WebFeb 11, 2024 · The LM7 5.3 Vortec engine has aluminum cylinder heads with an iron block and runs on gasoline. It has a 9.5:1 compression ratio and the heads use the LS-style cathedral intake ports and oval exhaust ports, with 1.89” intake and 1.55” exhaust valves. The LM7 uses two different camshafts. WebJun 22, 2024 · FiTech sells a stand-alone harness that uses its self-learning ECU and software to control a Gen III or IV LS engine. However, the harness is intended to plug into EV1-style injectors that are not the same … over the air outdoor tv antenna