The Engine Rebuilder Issue 05 - Summer 2026 | Page 34

COOL IT DOWN

Insight

Old cars overheat. That’ s what many of us have come to expect. But Aaron Radiator knows that, with upgraded cores, original classic car radiators can be more than up to the task of keeping temperatures down

Since the Sixties, many classic cars have had problems overheating in modern and busy road conditions. The main problem is the efficiency of the original radiator and fan system. Up until the Seventies, most classic car radiators used a Cellular Film core. This is very robust and durable; many cars still have the original film cores even though they may be over 50 years old. The issue is that it’ s not a particularly efficient design.

Even relatively new radiators, like those with plastic tanks, need to be copied and remade in alloy
34 The Engine Rebuilder Issue 05