en-us Thu, 04 Jun 2026 17:34:38 GMT 184745882 https://media.racingjunk.com/ls-lt-complete/184745882/3.8l-whipple-supercharged-427ci-ls.html As shown in this ad's video, our flex-fuel, 3.8L Whipple-supercharged, 427ci LS delivered an awe-inspiring 1,427 horsepower (6,700 rpm) and 1,284 lb-ft of torque (4,800 rpm) on E85. The dyno sheets are in the photoset. The pump gas version looks identical and pushes out 1,335 horsepower (dyno chart in photoset). Whipple superchargers are known for their explosive throttle response which comes from their internal bypass, extreme low-end torque and no lag. Their internal liquid-to-air…

]]> Engines: GM/Chevrolet: LS & LT complete Wed, 03 Jun 2026 07:50:04 GMT 184464074 https://media.racingjunk.com/ls-lt-complete/184464074/1-270-hp-whipple-supercharged-ls-for-airboats-off-road.html PHOTOS & VIDEO SHOW OPTIONAL POLISHED FINISH and VARIOUS 4.5L WHIPPLESUPERCHARGER MODELS in ON & OFF-ROAD CONFIGURATIONS Off-roading and watersports come in a lot a flavors, but there are common themes of quality, durability and power for the engines. - They need to be able to operate in difficult environments, - withstand a serious beating time after time, and - generate lots of torque at low rpm to get those props spinning or big tires kicking up dirt, mud and sand. Whipple…

]]> Engines: GM/Chevrolet: LS & LT complete Tue, 02 Jun 2026 07:50:02 GMT 184139641 https://media.racingjunk.com/ls-lt-complete/184139641/1-200-hp-3.0l-whipple-supercharged-pump-gas-ls.html Whipple’s 3.0L twin-screw supercharger for LS engines offers higher boost and lower air inlet temperatures compared to its 2.9L predecessor. The first one on our dyno hit 1,206 hp and made more than 1,000 lb-ft of torque from 3,400 to 6,100 rpm. See that 427 cubic inch beast perform in this ad's video. Others may try mounting one of these superchargers on a stock block designed for half the power we are making. Good luck! Our build recipe has been beefed up by upgrading the block to a Dart…

]]> Engines: GM/Chevrolet: LS & LT complete Tue, 02 Jun 2026 07:50:02 GMT 184640148 https://media.racingjunk.com/ls-lt-complete/184640148/630-hp-ls3.html Fully built race engine. By CRD out of NC. Original cost was $28,000. 11:1 compression. Used only 15 hours. Was built for a series that we no longer compete in. Perfect condition. Could trade for 5.3 LS parts (plus cash) or gooseneck trailer.

]]> Engines: GM/Chevrolet: LS & LT complete Tue, 02 Jun 2026 07:45:11 GMT 184797782 https://media.racingjunk.com/ls-lt-complete/184797782/370-ls-boost-engine-1000-hp.html Super clean low use gen 3 6.0L LS Boost engine. All machine work and assembly done by C2 Competetion Engines in PA. Just pulled pan for inspection bores and bottom end still look like brand new, Comes Turn key intake to Pan with all accessories and sensors, NO INJECTORS! $3800 picked up in york PA or i can freight ship it 6.0L Gen 3 iron Block, .030" over Wesico Forged pistons Weisco ring pack gapped for boost Tool steel wrist pin Gen 4 I beam rods, BTR rod bolts OEM crank, balanced and…

]]> Engines: GM/Chevrolet: LS & LT complete Tue, 02 Jun 2026 01:36:50 GMT 184797774 https://media.racingjunk.com/ls-lt-complete/184797774/ls-408-turbo-engine.html GM Iron block 408 stroker (Short block only, heads not included) Callies 4" stroke crank Callies 6.125 H beam rods Diamond pistons w/Trend pins 10:3 compression Bullet cam ground for supercharger (cam card in hand) Melling oil pump ARP hardware Johnson lifters King Coated Main Bearings Clevite Coated Rod Bearings Rings gapped for 20-25lbs of boost. Everything including the block are brand new.

]]> Engines: GM/Chevrolet: LS & LT complete Tue, 02 Jun 2026 01:14:24 GMT 184062972 https://media.racingjunk.com/ls-lt-complete/184062972/720-hp-408ci-hydraulic-roller-ls-street.html NOTE: PHOTOSET INCLUDES PICTURES OF OPTIONAL SERPENTINE SYSTEMS Are you looking to build an awesome resto-mod with great throttle response and all the power you can realistically put to street tires? How's 720 horsepower and well over 600 torque? Your ride is going to be a cruiser, so it needs to have street manners, be utterly reliable and low maintenance. Chances are your hood will be up a lot at car shows, so the engine needs to look great. You are looking for Plug & Play so as to avoid…

]]> Engines: GM/Chevrolet: LS & LT complete Mon, 01 Jun 2026 07:50:03 GMT 184756428 https://media.racingjunk.com/ls-lt-complete/184756428/700-hp-old-school-looking-fuel-injected-408ci-ls.html Pro Touring builds seek to combine modern performance with epitomized aesthetics. LS swaps are the overwhelming favorite power plant in this genre. They are relatively easy installs and deliver great $/hp in a small, lightweight package. Aesthetics are subjective. For purists, the typical LS looks out of place under the hood of their 1960-something Chevy. This engine is intended to bridge the aesthetic gap while still delivering tons of power with the reliability of fuel injection. The air…

]]> Engines: GM/Chevrolet: LS & LT complete Sun, 31 May 2026 07:50:03 GMT 184688117 https://media.racingjunk.com/ls-lt-complete/184688117/680-hp-408ci-hydraulic-roller-ls-street.html NOTE: PHOTOSET INCLUDES PICTURES OF OPTIONAL SERPENTINE SYSTEMS Are you looking to build an awesome resto-mod with great throttle response and all the power you can realistically put to street tires? How's 680 horsepower and 560 torque? Your ride is going to be a cruiser, so it needs to have street manners, be utterly reliable and low maintenance. Chances are your hood will be up a lot at car shows, so the engine needs to look great. You are looking for Plug and Play so as to avoid any…

]]> Engines: GM/Chevrolet: LS & LT complete Sun, 31 May 2026 07:50:03 GMT 184603169 https://media.racingjunk.com/ls-lt-complete/184603169/3-000-hp-427ci-twin-83mm-turbo-ls-fueltech-600-ems.html This is a custom flex-fuel engine intended to run on ethanol and gasoline. Since it is a custom build, you have a lot of available options to best suit your needs. For example, the pricing indicated here includes a tricked-out FuelTech 600 engine management system. Prefer Holley or Emtron? Want a different intake manifold? Aluminum rods? No problem. Actual pricing will of course depend upon options selected, so the final appearance may vary from that seen in the photos. As mentioned above,…

]]> Engines: GM/Chevrolet: LS & LT complete Sun, 31 May 2026 07:50:03 GMT 184421654 https://media.racingjunk.com/ls-lt-complete/184421654/1-151-hp-370ci-d1-x-procharged-ls-complete-.html ProCharger introduced us to their new D1-X Accessory Drive at PRI 2022. They sell it as complete a complete system thereby eliminating the grief of trying to make it work on your own. Our immediate thought was that we could build it using a liquid-to-air intercooler sandwiched in a Holley intake manifold. That would make it plug-and-play. No issues of how to stuff a big air-to-air intake under the hood somewhere. We liked what we saw and ordered one on the spot. We picked the 10-rib version over…

]]> Engines: GM/Chevrolet: LS & LT complete Sun, 31 May 2026 07:50:03 GMT 184153425 https://media.racingjunk.com/ls-lt-complete/184153425/4-500-hp-turbo-or-procharged-462ci-billet-ls-engine.html NOTE: THESE ARE CUSTOM BUILDS. AD PRICING IS INDICATIVE ONLY. ACTUAL PRICING DEPENDS ON OPTIONS SELECTED This billet long block uses a highly optimized, but well-proven LS architecture. The parts are from manufacturers of proven quality, but replacements can be sourced from alternate vendors if the need ever arises. This mitigates the risk of total reliance on a single vendor with their own exotic engine design and sole-source, proprietary parts. Proven conventional architecture also beats…

]]> Engines: GM/Chevrolet: LS & LT complete Sun, 31 May 2026 07:50:03 GMT