My 65 F-100 has 13". I buy longer refills & cut them to the proper length.

Took a heater core from my '65 F-100 today to Biltmore Iron in Asheville, NC and received $3.60 (3 lbs @ $1.20/lb). The radiator from same truck brought $18 (18 lbs @$1/lb). I run a '66 radiator now because i couldn't find a '65 around these parts years ago, fits fine, i just had to drill some holes...

What a shame ! Looked to be a decent old truck before the morons damaged it. The front grill looked in fine shape. They would have no problem selling it at a reasonable price here in NC. I get at least 2-3 offers every year to buy my '65 beater, the same color as that one & not nearly as good a ...