Chrysler A engine
The Chrysler A engines (not LA) are older small blocks and look the same on the
outside to each other. The blocks are different in deck height, but
share some internal components with the LA block. The cylinder heads
and intake are different.
- 277 in³ (4.5 L) 1956 3.75 in (95 mm) bore and 3.12 in (79 mm) stroke
- 301 in³ (4.9 L) 1957 3.91 in (99 mm) bore and 3.12 in (79 mm) stroke
- 318 in³ (5.2 L) 1957-67 3.91 in (99 mm) bore and 3.31 in (84 mm) stroke
- 4.7* -- 1999 Grand Cherokee, Charger R/T (CNG), next-gen Rams
- 5.2 (318) -- Polara, Monaco, Coronet, Charger, St. Regis, Magnum,Mirada, Challenger, Dart, Aspen, Fury, VIP, Belvedere,Satellite, Road Runner, Barracuda, Valiant, Scamp, Duster,Volare, Cordoba, LeBaron, Newport, New Yorker, Gran Fury,Imperial, Grand Cherokee, Grand Wagoneer, Diplomat, Demon,pickups and SUVs thru 2001.
241 8 v90 55 3.44 in (87 mm) 3.25 in (83 mm) Plymouth (this is right, see Dodge)
260 8 v90 55 3.56 in (90 mm) 3.25 in (83 mm) Plymouth
270 8 v90 56 3.63 in (92 mm) 3.25 in (83 mm) Plymouth
277 8 v90 56-57 3.75 in (95 mm) 3.13 in (80 mm) Plymouth
301 8 v90 57 3.91 in (99 mm) 3.13 in (80 mm) Plymouth called 301, but is 299.6 in³ (4,909 cm³)
303 8 v90 56 3.81 in (97 mm) 3.31 in (84 mm) Plymouth Fury
318 8 v90 57-66 3.91 in (99 mm) 3.31 in (84 mm) Plymouth only 57-58
326 8 v90 59 3.95 in (100 mm) 3.31 in (84 mm) Dodge Coronet
Plymouth used 318 poly and 350 wedge (B) in 58, 318 and 361 in '59, '60.
303 came out first, in 56, then 301.
The 301 and 303 may also be 'A' engines, based on bore and stroke, (and probably the 277), but don't know about the 241, 260 or 270.
The 241 and 270 appear to be poly-head versions of the Dodge Hemi (see below) bore and stroke are the same.
