Do you know how to rebuild or replace an engine?
No one is born knowing how to rebuild or replace an engine, and there’s no reason you can’t learn the same way anyone else has – by doing it! This article cannot cover every possible variation without becoming a textbook. But at a high level, one of the earliest decisions you’ll need to make is:
Can a car engine be rebuilt with original Pistons?
Generally, if the wear is less than 20/1000 of an inch, the original pistons can be reused, over 20/1000s will require the engine to be bored and oversized pistons to be used. Remove the ridge on the cylinders near the top of the bore with a cylinder reamer (rimmer).
What’s the best way to install a stat engine?
Place ‘stat in a pot of boiling water on the stove to be sure it will open. To avoid any air pockets which would cause overheating, with thermostat removed, fill the block with distilled water then re-install the stat.
What’s the difference between a 340 and 318 engine?
Valve covers for 340 engines were different than 318 valve covers. Since the 340 carb was a 4 barrel, it was wider and the carb linkages caused interference with the spark plug wires, so they raised the drivers side wire holder up about 2.5″ higher than the 318, to clear the linkages.
What was the production year of the Mopar 340?
1972-73: cast crank, 3462387, 3658393, or 3751841 (some 1974-86 cast cranks use the same 3462387 casting number as the 1973 340 crank); service part number 3751162. Chronology of the Mopar 340 V-8 engine (Stephen Havens and Michael Volkmann) 1968 – 340 released, rated at 275 horsepower, with: forged crank.
What was the valve number on a 1970 Mopar 340?
Some of the 1970 340 Six-Pack engines had heads with a U or O casting letter in addition to the J, but they were still the same part number (the T/A head had the intake valve pushrod holes drilled in a offset location). Valve covers for 340 engines were different than 318 valve covers.
How many carburetors are in a Mopar 340?
A six-barrel version (with three two-barrel carburetors) brought higher-performance heads, new valve covers, and material added to the bulkheads to allow for four-bolt main bearing caps.