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18 Photos 01. We had on hand a GM Performance Parts 454 HO crate engine, a mill that is mild in compression ratio at 8.6:1, but features large rectangular port cylinder heads. The basic combo.

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Max Brake Horsepower: 450 @ 5600 rpm (Chevelle and Camaro) Max Torque: 500 @ 3200 rpm (Chevelle) 500 @ 3600 rpm (Camaro) Stroke: 4.00 Bore: 4.251 Compression: 11.25 Firing Order: 18436572 1971 LS5 with 4 Barrel Carb Max Brake Horsepower: 365 @ 4800 rpm Max Torque: 465 @ 3200 rpm Stroke: 4.00 Bore: 4.251 Compression: 11.25 Firing Order: 18436572

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To accomplish that goal, we turned to Trick Flow Specialties for one of their complete top-end kits (PN TFS-K413-580-560). The kit included gaskets, valvetrain and camshaft, fasteners, and a set.

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We build a 700hp 454 engine for $2,403. View Gallery 7 Photos Related Video Click to Unmute Richard Holdener Writer Jun 7, 2010 It seems a certainty that Chevy guys would rather eat dirt than.

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In 1987, the 454 switched from a carburetor to fuel injection, bumping power to 255 horsepower and 405 lb.-ft. of torque. The final variant of the Chevy 454, known as the Vortec 7400, first became available in 1996 and would remain available until 2001 in some vehicles.

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What Is A 454 Big Block Engine? A 454 engine is a big block of power, and it has seven ("hepto") cylinders and four ("quad") pistons. These specifications are commonly found in heavy trucks, but any car aficionado will tell you that this setup was originally created for muscle cars, such as Corvettes.

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4 454C10 4018 posts · Joined 2004 #4 · Jun 12, 2009 Yes, fairly low hp due to a very small cam, restrictive intake, and restrictive exhaust. But the torque is pretty good at extremely low rpms which makes it seem more powerful than it is. Nothing a mild cam, intake, carb, and a set of header won't fix.

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Conservative calculations would suggest at least 500 hp consumption by the blower. This would suggest at least 2200 hp. Fuel flow calculations easily support these suppositions. I run it fat and safe, very little cadmium burned off the plugs, 11 years and counting with only periodic freshening.

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In 1987, a new 454 Mark IV hit the market with EFI, exclusively in trucks. Gen V. Sizes: 454ci; Years: 1991-1995;. Builders say a stock Gen V block will handle 650 to 750 hp, depending on pump.

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History. To some, the Chevrolet 454 big block was the right engine at the wrong time. Building on the popularity of its 427-cubic-inch engine, General Motors introduced the 454 in 1970—one year before emissions standards were tightened and just three years before the gas crisis hit with full force.It was not the ideal time to introduce a large cubic-inch big block tailored for performance.

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Chevy 454 Engine Specs Specs for the 1970-1976 big block 454 cid engine are as follows: Engine: Chevrolet 454 Big Block Displacement: 454 cid (7.4L) Block/Heads: Cast Iron Configuration: 90° V8 Bore x Stroke: 4.25″ x 4.0″ Compression Ratio: 10.25:1, 11.25:1, 8.2:1 Firing Order: 1-8-4-3-6-5-7-2 Engine Weight: ~685 lbs

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Indeed, the AHRA ASA Class record holding Chevelle LS6 for the 1970 season posted a best of season trap speed of 106.76 mph (171.81 km/h) "1970 ASA LS6 454 Records" , which suggests something on the order of 350 "as installed" (SAE Net) HP for a 3,900 pounds (1,800 kg) car and driver combination.

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Stock 1975 454 cam specs.. I bought a 1975 454 and I'm wondering what the stock cam was/is for that year, all help is greatly appreciated . Mine-1969 El Camino 454 T-400 (Project) Build thread coming this winter Dads-1969 Dart GT Convertible 340 4 speed (Project) Save Share.

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(April 2021) The Chevrolet "big block" engine is a term for a series of large-displacement, naturally-aspirated, 90°, overhead valve, gasoline -powered, V8 engines; that were developed and produced by the Chevrolet Division of General Motors, from the 1950s until present.

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We Build A 700HP 454 For $2,403 without braking the bank. View Gallery 19 Photos Related Video Click to Unmute 00:02 / 02:00 Richard Holdener writer Nov 20, 2014 It seems a certainty that Chevy.

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kahl_454 Discussion starter 42 posts · Joined 2009 #1 · Dec 27, 2009 Hi, I am about to repower with a 454 (Block # 14015445. Head # 353049) that I believe to be stock.