Im changing my car to a bigblock from the small block. my question is the heater box on the out side. I purchased the big block cover but there are still holes for the small block heater core.

What do i do for those holes weld a piece in or is there a kit to cover it up like the clutch hole on the other side?

thanks for any help



Btw i have a 69 v8 car with out AC

 

guess ill just weld the holes up then

 

How big are the holes? Are they bolt holes? What exactly are we talking about.

 

Buy a heater box gasket set from any supplier and it has a rectangular foam piece that goes between the inside heater box and the firewall. It blocks off the small block heater core holes.

 

oh ok so no need to fill them with metal. thats what i need to know thanks

 

No, all firewalls are the same- as for as BB or SB. The SB holes on a BB car firewall was plugged with foam.