When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Dumb question incoming. Ive got a 71 no ac 350.
background: wasn’t running when I purchased it, and as far as I know hasn’t ran in about 18 years. I’ve got the engine pulled and decided to pull the heater core out from the engine bay, not through the dash. Got it pulled out and there is a flap that is closed behind the core. What controls that flap? It seemed pretty stuck in place.