I run a stroked big block with an aluminum cross-flow radiator, 160 thermostat, plastic flex fan, mechanical high volume water pump, and aluminum shroud.

Because of the motor plate I only have 2.75" of space between the radiator and the water pump pulley so I'm not able to fit an HHR electric fan, and a clutch fan probably won't fit.

This combo has honestly been awesome in the Fall and Spring but today was the true test, 87 degree's here in Akron Ohio with humidity and heavy traffic. This combo survives at speed but the gauge quickly moves up at stop lights. It's never gone over 178 degrees but today it was 220 by the time I got it home, as it climbs a little higher at each stop light.

Should I remove the thermostat and let it flow freely? Is there a better setup that will fit? I normally hack up the core support on A-body cars so the radiator can be moved towards the front of the car more but this car is way too nice to cut-up if I don't have to.

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1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual