67-69 Barracuda differences

"As the pony-car class became established and competition increased, Plymouth began to revise the Barracuda's engine options.

In 1967, while the 225 slant-6 was still the base engine, the V8 options ranged from the 2-barrel and 4-barrel versions of the 273 to a seldom-ordered 383 cu in (6.3 L) "B" big-block, the latter available only with the Formula S package.

In 1968 the 273 was replaced by the 318 cu in (5.2 L) LA engine as the smallest V8 available, and the new 340 cu in (5.6 L) LA 4bbl was released. The 383 Super Commando engine was upgraded with the intake manifold, camshaft, and cylinder heads from the Road Runner and Super bee, but the more restrictive exhaust manifolds specific to the A-body cars limited its output to 300 bhp (224 kW)"

From http://en.wikipedia.org/wiki/Plymouth_Barracuda#1967.E2.80.9369

I've owned 5 different 67 Abodies, 4 Barracs and 1 Dart. all 273-2bbl. I have never personally seen one with a 318.

Grant