Engine of the Week is presented by
In this recap of December’s performance engines, we take a look at a Whipple-supercharged 388 cid LS7 engine built by Mad Cap Racing Engines; a twin-turbo 427 LSX engine built by Niemcewicz Racing; a 1970s LT1 engine built by 955 Automotive; and a methanol-injected, 427 cid Small Block Ford engine built by Hartwig Performance Engines, LLC.
[andoto-embed-video id=”gCcGclfdZGeLN”]
This Late Model Engines build is centered around Concept Performance’s new LTR block, which is the first aftermarket as-cast aluminum Gen V LT block.
The Chevrolet LT engine family from General Motors is rooted in the early ‘70s, when the LT1 was featured in the Corvette and Camaro Z28. After a 20-year hiatus, GM reintroduced the platform in the early ‘90s. The “LT1 350” came out in 1991, and was distinct from the high-output Gen I LT1 of the 1970s. It displaced 5.7L (350 cu in), and was a two-valve per cylinder pushrod design. The LT1 used a reverse-flow cooling system, which cooled the cylinder heads first, maintaining lower combustion chamber temperatures and allowing the engine to run at a higher compression than its immediate predecessors.
Lead times are no longer months upon months as they were in the middle of 2020 and throughout 2021, but the situation is still of some concern, and it’s forced engine builders to get creative at times.
LS swaps are popular for many reasons, but there are a lot of variations and details to sort through – more of them than you may expect – and many of them are associated with the intake manifold.
Whether you’re scouring junkyards, ordering cores, investigating factory options, looking at aftermarket cast iron or aluminum blocks, or spending big bucks on billet LS blocks, you’ve probably noticed it’s been harder to find exactly what you want for the foundation of your LS build than it historically has.
Closed-loop control can be programmed to either add or subtract up to a certain percentage of fuel in order for the engine to reach the target air/fuel ratio.
Choate Engineering Performance, located in Bolivar, TN, does a ton of diesel engine remanufacturing and custom engine building. We were recently visiting the shop and got the run down of Choate’s 6.7L Powerstroke build. It’s our Diesel of the Week! Related Articles – Jason Sack’s Turbocharged 429 cid LSX Engine – Kill Devil Diesel’s 7.0L
It’s tough to beat the lines and looks of a Chevy Nova. Jason Sack’s 1969 Nova is certainly up there in terms of coolest-looking, and it doesn’t hurt that it has 2,200+ horsepower under the hood courtesy of a turbocharged and nitrous-boosted 429 cid LSX engine! See for yourself!
Jason Sack had arguably one of the nicest Novas we saw during Sick Week 2023. The car’s beauty had some sort of gravitational pull as we walked passed it in the pits. Naturally, we gave in and stopped to have a chat with Jason Sack about his 1969 Nova and its turbocharged 429 cid LSX
The team at Kill Devil Diesel does some amazing work surrounding all light-duty diesel engines, but the Poplar Branch, NC-based shop specializes in Ford Powerstroke work. As such, they do a ton of trick stuff on 6.0L Powerstrokes, and we got a first glimpse at a billet 7.0L/6.0L Powerstroke build for Charlie Fish of KC
