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GM High Feature engine
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=== LF4 === The ''LF4'' is a higher-performance variant of the LF3 for use in the [[Cadillac V-Series#ATS-V|Cadillac ATS-V]] and [[Cadillac CT4#CT4-V Blackwing|Cadillac CT4-V Blackwing]]. Changes to the LF3 include: * Turbochargers with low-inertia titanium-aluminide turbines and vacuum-actuated wastegates for more responsive torque production * Compressors matched for peak efficiency at peak power levels, for optimal track performance * Patent-pending low-volume charge-cooling system that optimizes packaging efficiency and maximizes boost pressure * To compliment the quick spooling turbochargers, lightweight titanium connecting rods that reduce inertia of the rotating assembly were used on all ATS-V models, while only manual transmission CT4-V Blackwing models featured titanium connecting rods. 10-speed automatic CT4-V Blackwing models featured steel connecting rods.<ref name="TitaniumRods">{{cite web |title=Only Some Cadillac CT4-V Blackwing Engines Have Titanium Rods |url=https://gmauthority.com/blog/2021/04/only-some-cadillac-ct4-v-blackwing-engines-have-titanium-rods/ |website=GM Authority |publisher=GM |date=April 2021 |access-date=30 March 2025}}</ref> * Peak boost increased to {{convert|18|psi|bar|abbr=on}}, from {{convert|12|psi|bar|abbr=on}} * Higher-flow fuel injectors * Oil pan baffling for better oil flow at high cornering speeds<ref name="2016 Cadillac ATS-V Coupe and Sedan: 455 M3-Baiting Horsepower!">{{cite web|title=2016 Cadillac ATS-V Coupe and Sedan: 455 M3-Baiting Horsepower!|url=http://www.caranddriver.com/news/2016-cadillac-ats-v-coupe-and-sedan-photos-and-info-news|website=Car & Driver|date=18 November 2014|publisher=Car & Driver|access-date=19 November 2014}}</ref> Applications: {| class="wikitable" style="font-size: 90%" |- ! Year(s) ! Model ! Power ! Torque ! Dyno chart |- | 2016โ2019 | [[Cadillac V-Series#ATS-V|Cadillac ATS-V]], [[Cadillac ATS-V|Cadillac ATS-V Coupe]] | {{convert|464|hp|kW PS|0|abbr=on}} @ 5850 RPM | {{convert|445|lbft|Nm|0|abbr=on}} @ 3500 RPM | [https://web.archive.org/web/20161002061131/http://gmpowertrain.com/images/product_images/engines/2016_36L_(LF4)_ATSV_052015.jpg 2016 link] |- | 2022โpresent | [[Cadillac CT4#CT4-V Blackwing|Cadillac CT4-V Blackwing]] | {{convert|472|hp|kW PS|0|abbr=on}} | {{convert|445|lbft|Nm|0|abbr=on}} |}
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