. "0.07" . "8.5:1, 8.6:1, 9.0:1" . . . . "Mazda OHV engine" . "0.082" . . . "0.068" . "PB" . "0.076" . "0.068" . "Mazda OHV engine" . "0.046" . "DB" . "I-head" . . "VA" . "OHV engine" . "RA" . "'''PB'''" . "AA" . "0.054" . "later" . "0.074" . "0.058" . . "Mazda-designed OHV engine family" . "SA" . . "TB" . . . . . . . "0.094" . . "DA" . "early" . "UA" . . . "0.064" . "0.054" .