Review on Spectra Premium 94610 Heater Core by Charles Alfian

Block base exact match but tubes do not match in position, curves or length to what I pulled out of my '82 Corvette. Each measurement is slightly different, that's enough to cause a problem. Since the aluminum tubes won't bend without tearing at the seam, I had to modify the plastic heater box with a Dremel. Once installed in the heater box, the pipes coming out of the car and going under the car were problematic as the bend radius of the heater core pipes pushed them against the firewall causing problems when trying to reattach the hoses. Overall we were able to get it working but expect some extra effort to put it all back together. I think you get what you pay for, it's cheap enough but not an exact OEM match.