Re: 67 sm to bb heater core conversion
While Luwi67 is technically correct, if you want to go cheap you can turn the SBC heater core upside down and punch/drill (I used Greenlee dies) some holes in the box located off of the SBC heater core in that position. Don't forget to use a grommet where the hoses interface with the box.
That's what I did before I got the correct items. It's not correct but it works.
67 Camaro: 454/TH400/4.10 12 bolt. Lots of options: PS/PDB/PW, tilt, tach, gauges and more. K-K + 797-Z...
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