![]() ![]() We are standing at the control panel of Thomson Automotive's SuperFlow HP/TQ: Compression: LS1: 5. Even the best heads were only up by 25 hp or so, the gains offered by ported LS7 heads would be … Order both at the same time to save on shipping! NOTE: GM Clutches are exempt from all Free Shipping promotions. Custom Max Horsepower: 450 hp 5600 rpm Max Torque: 500 lb-ft 3400 rpm. The LS7 454 is a "Mythical Engine", "This option was listed in the Corvette shop specs, but only one was "officially" made. Hmm interesting: You have one vehicle that is in both lists - Saturn Sky Redline. With a blank canvas, we set out to design a better-suited port and valve size arrangement for the 4. 7-8 years ago, Thomson Automotive built a 1,000hp LS7, using the LS9 blower. Given this situation, cam upgrades for LS applications have become hot sellers. The car, a Monaro coupe (known as the Pontiac GTO in the U. In addition to reaching the magic number This calculates the boost (psi) to achieve a nominated horsepower target based on your engines specifications and maximum rpm. About 500+ hp for starters!! Just look at the 454 LS7 as a stroked 427 L-88!!! Same spec's if I remember right except for the stroke. Cons, makes a touch less torque and higher up in the rpm band. 050 hydraulic cam netted a gain of 99 hp. In comparison, at that same rpm the Mast LS3-based 427 kicks out a staggering 907 hp. More performance crate … And while the engine was rated at 290 hp at 5,800 rpm, it’s true output was believed to be beyond 300 hp, with 7,000-rpm capability. Chasing the big tuna just got easier with the introduction of a 627-horsepower outboard … The GMPP LS7 (PN 19165058) crate engine retails for $14,195, and the TSP 418 in crate-engine trim is approximately $9,607, making the latter a great choice for the F-body, GTO, or G8 enthusiast Bottom Line. ![]()
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