67 BB Radiator Missing Holes

[Bill Becker]

I have a Harrison radiator (may be an early service replacement)with no A/T fittings. On the right edge of the right tank is embossed HARRISON, below that is FILL COLD. On the rear side of the same tank is embossed FILL COLD and on the third rung down is a sideways "G". The top and bottom "rails" only have the rectangular holes (9/16 x 3/8 and 1/4 x 3/8), No round holes. Most reference books I've seen also show the four round holes. However, I've also seen some with only the rectangles. What is the correct configuration for a 67? Are there differences between 66-67 BB radiators? (excluding L88s) Does anyone know exactly where the holes are supposed to be located?

Thanks in advance Bill Becker Holeless 67

[Mark L.]

Re: 67 BB Radiator Missing Holes

I believe the radiator you have is for a 66 BB. All but very late 66 radiators did not have the round holes. There may be pictures of both of these either in the Dobbins or Adams books. As a side note I spoke to a former Harrison employee about why the difference and he believes it was related to new hangers that were used in the manufacture of the 67 radiators. BTW, you can always put holes in the plates to make them 67 however there may be someone out there who needs the 66 plates. They are removeable if/when you recore. Good luck.