The biggest factors regarding times back in the day were the tires. My '69 Mach 1 Cobra Jet had F70-14's...super skinny compared to today's even Eco box cars. My '70 Boss 302 Mustang had F60-15's. Wider but nothing compared to today's tires. Add in the difference in construction and rubber compounds..Bingo. BTW my Boss 302 which was hard pressed to break into the 13 sec 1/4 mile would gap Hemis, 440 6 packs, 454 Corvettes you name any big block on street tires from a dead stop for at least 1/8 + mile when an average driver was behind the wheel. The tires would go up in smoke in a flash...5,000 rpm starts drop the clutch comparatively low wheel spin then the low and I would be gone. The sound of dual Carters 4 barrels sucking air as they went by near/past the 1/4 mile mark was a sound to behold
Originally Posted By: Snagglefoot
Originally Posted By: Chris142
Originally Posted By: PimTac
Unfortunately when I hear Dodge Demon I think of the Dart. The engine dying in left hand turns was the epitome of the 70’s.
The 340 was quite the street contender! Many big blocks go beat by a 340 at a stop light race.
Originally Posted By: xxch4osxx
Originally Posted By: Chris142
Originally Posted By: PimTac
Unfortunately when I hear Dodge Demon I think of the Dart. The engine dying in left hand turns was the epitome of the 70’s.
The 340 was quite the street contender! Many big blocks go beat by a 340 at a stop light race.
My father told me stories about those 340's showing up big block powered cars. I'm guessing they must have put out quite a bit more HP than they were advertised at.
This was true but was party due to the torque curve on the engine and vehicle weight. A 71 340 Dodge Demon had a quarter mile time of 14.56 sec. A 71 Dodge Charger with a 440 had a quarter mile time of 14.5 seconds, so a tuned 340 Demon could beat a 440 Charger.
But to put this all into context, the new Demon can do the quarter in 9.65 sec. To add insult to injury, my 2005 Ford Taurus SE can keep up to a 71 340 Dodge Demon in the 0 to 60. Our memory of the glory years gets a bit foggy with time. They old muscle cars were actually wimpy compared to the modern ones.