Anybody have any experience with MMR's 455478 Head Coolant Modification? I haven't been able to find any reviews on it, so I thought I would ask here in this forum, being how a lot of you guys go with the coyote option. I'm putting the engine in a 49' ford f1 where things are very tight and cramped in the engine compartment and thought it would help in keeping engine temps more manageable. So after saying all that, any experience with the part? Thx.
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