Originally Posted by TJP
Originally Posted by 71birdJ68
Chrysler made millions of cars back then that didn't have any trouble with cooling. Do you have a factory 7 blade fan and the correct water pump and is it a factory shroud? What is the engine tune like? Glen Ray uses cooling tubes which are similar to what big truck use, that is one reason they cost more. Bob is the best in the business.


AGREED 100%,
So what's the difference? The efficiency of the majority of today's replacement cores. They are not ALL created equal as the bean counters and "improved" manufacturing processes over the years have slowly degraded the efficiency in the chase of profit.
While discussing 1-2-3-4 rows there are several other variables, IE: tube thickness. the number of fins per inch, the thickness of those fins, louvered fins, staggering the rows, the methods used to manufacture the cores. All of these and a few more affect the efficiency. beer


This is a completely accurate and more detailed response than mine... there is more than just adding the inches....like dimpled tubes and these things mentioned. Somebody else mentioned air flow, which is also important. You need coolant flow and air flow to cool the engine

70 Roadrunner convt. street car 440+6, NOS, 4-spd, SS springs '96 Mustang GT convt. street car '04 4.6 SOHC, NOS, auto, lowered "Officer, that button is for short on-ramps"