1919 Pierce-Arrow Model 38 Five-Passenger Touring The “Dual Valve” designation points to something genuinely unusual in early engine design. Beginning in 1918, Pierce-Arrow adopted a four-valve-per-cylinder T-head…
1919 Pierce-Arrow Model 38 Five-Passenger Touring The “Dual Valve” designation points to something genuinely unusual in early engine design. Beginning in 1918, Pierce-Arrow adopted a four-valve-per-cylinder T-head…