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  1. Chevy LS4 Engine Specs · Help Center - Summit Racing

    Chevy LS4 Engine Specs LS Family: Gen. 4, 5.3L, Aluminum Block, Car Engines The LS4 was used in GM cars between 2005-09. It is unique because it was the only LS engine used in …

  2. Upgrading the LS4 Engine · Help Center - Summit Racing

    Upgrading the LS4 Engine What can I do to get more power out of my engine? The LS4 is very unique in the LS family of engines. It was only used in front wheel drive (FWD) cars. On a …

  3. Can I use an older GM automatic transmission with an LS engine?

    The LS4 was used in FWD cars and uses a metric, 60 degree, Chevrolet V6 bellhousing. For details about the LQ4 and LR4 engines, see Mating a GM Automatic Transmission to an Early …

  4. LS4 / 4T65E-HD Swap - fieroguru - Pennock's Fiero Forum

    Aug 29, 2014 · The LS4 belt is something like 3" closer to the engine, so the alternator would be about 3" deeper into the space for the intake. In the name of simplicity and cost, I want to keep …

  5. Chevrolet LS Gen. 4 Aluminum Block Torque Specs · Help Center

    Gen. 4, Aluminum Block, LS Engines The following specs apply to RPO codes: LS2 LS3 LS4 LH6 LC9 L92 Etc. **Click the blue links in the table for more detailed information**

  6. 400 hp ..3800 vs ls4 - Pennock's Fiero Forum

    Jul 5, 2014 · The LS4 is very easy to get 400 HP out of, but it's a more difficult install, and can be more expensive to acquire the engine and trans. If you want to go manual, it's also going to be …

  7. Help with a LS4/F23 swap - Pennock's Fiero Forum

    Feb 27, 2021 · The LS4/F23 is definitely less common than the LS4/F40, but in theory it should be easier/cheaper swap based on price for the transmission and you "might" be able to reuse the …

  8. LS4 / F40 swap - fieroguru - Pennock's Fiero Forum

    Mar 14, 2013 · LS4 flexplate, .400” LS (x) crankshaft spacer (off the shelf item for under $50) and a highly modified aluminum flywheel from a C4 LT1/ZF6 application. The end result is a 14 lb …

  9. LS4 engine/LS2 intake - Pennock's Fiero Forum

    Nov 19, 2015 · The LS2 and LS4 have the same heads stock, so yes, it will fit. I am using the LS2 intake on my swap, and fieroguru also use the LS2 intake on his swap. If you are keeping the …

  10. LS4 starter location - Pennock's Fiero Forum

    Oct 30, 2013 · The 4 speed (and Isuzu, and getrag with external release lever) can't use my starter mount bracket, or the stock LS4 starter location for that matter, due to the clutch …