Quote:
Originally Posted by Ronald G. Stephenson
The 313 was a Chrysler Canadian engine, and the ubigutious 318 were manufactured by the millions. Your 340 is a small block Chrysler out of he same family, but is what is referred to as an LA engine.
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The 340 is NOT the same family of engine as the 313 and 318 engines used by Bristol.
The 313 and 318 engines used by Bristol were "A" series engines, with a polyspherical cylinder head chamber. The engines are commonly referred to as "Poly" engines.
Chrysler then moved on to produce the "LA" series engines which had a wedge shaped head chamber. There are few, if any, interchangeable components between a 318 Poly and a 318 "LA" or wedge head engine.
Unfortunately, the "LA" series engine is commonly referred to as the "A" engine which causes much confusion.