BB Heater Core & Box

[YENKO DEUCE REGISTRY]

Went to install the heater core on Ben's Nova this past Saturday, and the repro core appears to be too large - the retaining brackets at the ends won't even come close to lining up! <<GRAEMLIN_URL>>/eek.gif I bought it from Ground Up, part # ACHKIT3. Anyone else run into this? Can you install the larger core without the brackets &amp; without issue?

Also the 'seal kit' appears useless, I'm inclined to install the unit without any of 'em and just use the strip caulk like factory....

[camarojoe]

Welcome to the world of repro garbage.

[miket1]

I got my 69 Camaro small block heater core from NAPA, it was an exact fit, ,don't know how their big block core is but worth a look.

[YENKO DEUCE REGISTRY]

So, the repro unit is apparently quite correct for a '67 BB car that has a larger heater box and thus a core that is 2.5&quot; wide. However, in '68 the box changed, and so did the core which is just 2.0&quot; wide. So, certain repro companies only sell the 2.5&quot; unit which might work in the '68-'69 heater boxes, but you can't use the retaining clips.

I found one site, Heartbeat City, that has notes regarding the differences between the 2 different sizes and the related applications. So, I'll be ordering one from them - more expensive than other sites, but I'll gladly pay it if it fits properly!

More to come....