What was the valve lift on a 1970 Mopar 340?
What was the valve lift on a 1970 Mopar 340?
1970-71 engines were painted orange; they changed to blue very late in the 1971 model year; the camshaft on automatics had a 268° intake and 276° exhaust opening duration, with 44° overlap (manuals had 276° intake, 284° exhaust, 52° overlap). Valve lift was 0.430″ intake, and 0.445″ exhaust.
What was the horsepower of a 1971 Dodge 340?
For the 1971 cars, the 340 (and the 360) came with the “J” type heads, using a single casting, with different machining for the different sized valves. 360 heads were used in the 1970 340 Six-Pack AAR/TA, which had the same size valves. * 1971 press release stated 305 lb-ft net at 2800 rpm, 1971 brochure listed 310 @ 3200.
When was the last time Dodge made a 340?
1973 – The cast crank had a different number than the 1972 counterpart, because it was shot-peened for greater strength. 1974 – The 340 did not re-appear for 1974, ending an era. Instead, the 360 four-barrel (E58) was provided, with the 1973-340 cam, carb, and intake.
What was the horsepower of the Chrysler 340?
Coming off the starting blocks in the Dart GTS and Formula S Barracuda’s, the 340 made everyone stand up and pay attention. The horsepower rating was set by Chrysler at 275bhp thru to ’71, but with the ’72’s being detuned slightly to 240 net bhp.
1970-71 engines were painted orange; they changed to blue very late in the 1971 model year; the camshaft on automatics had a 268° intake and 276° exhaust opening duration, with 44° overlap (manuals had 276° intake, 284° exhaust, 52° overlap). Valve lift was 0.430″ intake, and 0.445″ exhaust.
1973 – The cast crank had a different number than the 1972 counterpart, because it was shot-peened for greater strength. 1974 – The 340 did not re-appear for 1974, ending an era. Instead, the 360 four-barrel (E58) was provided, with the 1973-340 cam, carb, and intake.
What kind of engine does a Dodge 340 have?
The four-barrel carried over without changes, while a new Trans Am (T/A) version, dubbed Six-Pack on Dodge and 6-Barrel on Plymouth, debuted. This 1970-only 340 had: “J” casting cylinder heads were unique to the T/A, with unique pushrod holes to allow for oversized porting on the intake runners
What kind of head does a Mopar 340 have?
I own three 340s; one engine has genuine X heads and the other two have AAWJ 360 with the 1.88 intakes removed and the 2.02 stainless valves and the intake runners worked to match the larger foot print X head gasket outline.
