Mazda Speed 3

For A Bodies Only · matthon · 26 Sep 2026

383 dual quad efi tunnel ram, A833OD 4 speed, 3.23 Sure-Grip. Background For years, ran an original a-body bb radiator with the Hayden clutch and Delray 18" fan, NO shroud. Northeast, car never strayed far from 180 in all weather and driving conditions. I switched to timing control, then 160. Note: my understanding was the engine builder put in a 180 thermostat, when I later swapped to electric fans I discovered in fact it was a 160. 2025 Power Tour line of traffic, 90+ out, car got up... Read more