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CATEGORIES (articles) > Engines > Chrysler > Chrysler RB engine overview

Chrysler RB engine overview

The RB engine is a big-block V8 engine from Chrysler. It first appeared in 1959 and was a raised-deck (taller) version of the Chrysler B engine. The big-block RB lasted until 1978. All RB engines have a 3.75 in (95 mm) stroke, with the bore being the defining factor in engine size. Bore center distance is 4.84". All RBs are oversquare, but the sheer size of the engines means that torque is not lacking.


There were just a few 383 RB engines made with a 4.031 in (102 mm) bore, so they are often confused with the 383 B engine. This engine was only produced from 1958 to 1960 and used a RB(raised block).


The 413 RB had a 4.1875 in (106 mm) bore and was produced from 1963 to 1973. Used in trucks from 67 through 73.


Not to be confused with the famous 426 Hemi, the 426 RB Wedge was a wedge-head RB big-block with a 4.25 in (108 mm) bore. It was produced from 1963 to 1966.Actually, the 361 and 413 engines were used in Dodge medium and heavy duty trucks untill discontinuation of the product line in 1975.


440 RB V8 in a 1971 Plymouth 'Cuda

The massive 440 RB was produced from 1966 until 1978, making it the last of the Chrysler big-blocks. From 1966 to 1971, it was conservatively rated at 375 hp (280 kW) with a single four barrel and from 1969 to 1971, 390 hp (291 kW) with three two barrels. Both motors could produce 425 to 435 hp (317 to 324 kW). The 440 was known as the Magnum in Dodges, the Super Commando in Plymouths and briefly as the TNT in Chryslers.

The 440 was used in the following vehicles:

  • Chrysler 300 letter series
  • Chrysler New Yorker
  • Chrysler Newport
  • Chrysler Town and Country
  • Dodge Coronet
  • Dodge Charger
  • 1970-1971 Dodge Challenger
  • Dodge Daytona
  • Dodge Monaco
  • Dodge Polara
  • 1969-1971 Dodge Super Bee
  • Imperial
  • Plymouth Barracuda
  • Plymouth Belvedere
  • Plymouth Fury
  • Plymouth GTX
  • Plymouth Road Runner
  • Plymouth Superbird
  • Plymouth VIP
  • Jensen Interceptor

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CATEGORIES (articles) > Engines > Chrysler > Chrysler RB engine overview

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