JLR Posted September 25, 2023 Share Posted September 25, 2023 (edited) I've been told that the two-core radiator fitted to the Spitfire Mark 3 and 4 (1964-1980) - see for example https://tinyurl.com/2s3z82t4 can be fitted to a 1970 13/60 as a wider upgrade, subject to the removal of the steel fillets that secure the original. Does anyone have any experience of making that substitution? With thanks. Edited September 25, 2023 by JLR Quote Link to comment Share on other sites More sharing options...
Clive Posted September 25, 2023 Share Posted September 25, 2023 They are totally interchangeable. Though in original format, the wider rads had a thinner core than the later, narrow rads. Modern replacements seem to have the extra core. Quote Link to comment Share on other sites More sharing options...
glang Posted September 25, 2023 Share Posted September 25, 2023 Something to consider is why you would want to increase the size and whether its necessary? Theres various posts on here to support both cases but I would suggest using the wider unit principally increases cooling while driving and indeed, as has been found, can over cool in winter. On the other hand a wider rad probably wont help much when not moving along as some of the coolant will be able to pass through radiator tubes that no longer have airflow from the standard engine fan. So if, as is often the case, you want more cooling under these conditions you would probably need to go to two electric fans so the entire core receives airflow... Is your existing radiator in good condition? Quote Link to comment Share on other sites More sharing options...
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