- The Buick 455 V8 engine was produced from 1970 to 197612. It had a 4.31-inch bore and 3.90-inch stroke2. The engine had a 90° V8 configuration and produced 360 bhp of power at 4600 rpm, and maximum torque of 691 N·m at 2800 rpm3. The compression ratio was 10:1 or 10.5:1 (1970), 8.5:1 (1971-1974), and 7.9:1 (1975-1976)1. The dual-snorkel 455ci big-block was offered in two varieties: the 350-hp four-barrel and the Stage 14.Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.Specs for the Buick 7.5L big block V8 are as follows: Engine: Buick 455 V8 Displacement: 455 cu in (7.5L) Configuration: 90° V8 Bore x Stroke: 4.3125″ x 3.90″ Compression Ratio: 10:1 or 10.5:1 (1970) 8.5:1 (1971-1974) 7.9:1 (1975-1976)musclecarclub.com/buick-455-engine-guide/Buick produced its 455-cubic-inch V-8 from 1970 to 1976. The 455 came to be after General Motors lifted its ban on equipping intermediate cars with V-8s larger than 400 cubic inches. Based on the 400 and 430 V-8s, the Buick 455 had a 4.31-inch bore and 3.90-inch stroke.itstillruns.com/history-buick-oldsmobile-455-engine…This powerplant features overhead valve valve gear, a 90 degree V 8 cylinder layout, and 2 valves per cylinder. It produces 360 bhp (365 PS/268 kW) of power at 4600 rpm, and maximum torque of 691 N·m (510 lb·ft/70.5 kgm) at 2800 rpm. A 4 speed manual transmission transmits the power to the driven wheels. Its stated weight at the kerb is 1768 kg.www.carfolio.com/buick-gsx-455-stage-i-140415At Buick, the dual-snorkel 455ci big-block was offered in two varieties: the 350-hp four-barrel rated at 350 hp and 510 lb-ft of torque (the version found in the Mecum auction example above), and the Stage 1, which featured larger valves, a choppier camshaft, slightly more compression (10.5:1 vs. 10:1), and the same stump-pulling 510 lb-ft of torque.www.motortrend.com/features/1970-buick-skylark-…
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Buick 455 Engine Guide - 7.5L V8 Specs, Performance, Reliability
Configuration: 90° V8. Bore x Stroke: 4.3125″ x 3.90″. Compression Ratio: 10:1 or 10.5:1 (1970) 8.5:1 (1971-1974) 7.9:1 (1975-1976) Firing Order: 1-8-4-3-6-5-7-2. Max Horsepower: 350-370 HP @ 4600. Max Torque: 510 lb-ft @ 2600. We’ll talk about certain specs more in-depth when we cover the history of … See more
Buick 7.5 V8 engines were in the following years and models: 1. 1970-1976 Buick Electra 2. 1970-1976 Buick Estate 3. 1970 Buick Wildcat 4. 1970-1976 Buick LeSabre 5. 1970-1976 Buick … See more
Specs for the Buick 7.5L big block V8 are as follows: Engine: Buick 455 V8 Displacement: 455 cu in (7.5L) Configuration: 90° V8 Bore x Stroke: 4.3125″ x 3.90″ … See more
With much of the background info out of the way let’s jump into Buick 455 reliability and problems. We’ll then move onto the most exciting info – … See more
The big block Buick 7.5 engine came out during an exciting period for muscle car enthusiasts. It was a time when huge V8’s – like the Chevy 454, … See more
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Specifications for 400,430 and 1970 Buick 455 Cubic …
WEBBuick 400-430-455 Engine Specifications and Blueprinting . General Specifications for the 1968 400/430 and 1970 Buick 455 Cubic Inch Engines. The following information has been directly complied from …
WEBApr 29, 2021 · Base versions of the motor produced 350hp and 510 lb-ft of torque, while the 'Stage 1' package offered larger valves, a higher compression ratio, and a choppier cam …
Unveiling the Power: 1971 Buick 455 Engine Specifications and …
WEBMar 12, 2024 · The 1971 Buick 455 engine features a V8 configuration, meaning it has eight cylinders arranged in a V shape. This design allows for smooth power delivery and …
- Compression Ratio: 8.5:1
- Engine Type: V8
- Displacement: 455 cubic inches (7.5 liters)
- Horsepower: 315 hp
Buick 455 Stage 1 Engine: Specs, Configuration, and Maintenance …
WEBMar 15, 2024 · Engine Configuration. The Buick 455 Stage 1 engine features a V8 configuration, meaning it has eight cylinders arranged in a V shape. This configuration …
- Compression Ratio: 10.5:1
- Engine Type: V8
- Displacement: 455 cubic inches (7.5 liters)
- Horsepower: 360 hp
WEBOct 10, 2022 · In terms of power, the regular-spec 455 was conservatively rated at 350 hp, yet the torque it could produce was unmatched. With 510 lb-ft (691 Nm) attainable as low as 2,800 rpm, it delivered...
WEBJul 15, 2021 · In 1968 Oldsmobile debuted the Rocket 455, an engine that was part of a family of 3 (with 400 and 425 cubic inch engines sharing a similar architecture). Offering between 310 and 400hp, and pushing out …
1974 Buick 455 Engine: Detailed Specs and Maintenance Guide
WEBMar 13, 2024 · Engine Configuration. The 1974 Buick 455 engine was a powerful V8 engine that was part of Buick’s renowned big-block engine family. It featured a …
WEBJan 6, 2021 · In 1970, Buick replaced the 400 and 430 wholesale with a 455 cubic-inch V8 that could be optioned with more than 510 pound-feet of torque from the factory. For its …
1970 Buick GS 455 specs - Muscle Car Drive
WEBAt the heart of GS 455 and GSX was a new 455 cubic inch V-8. Horsepower was rated at 350 or 360hp for the Stage 1. Production / Performance. GS 455 - 8,710 hardtops and 1,416 convertibles. GSX …
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