Re: [oletrucks] ??Elongated hole in the firewall??

[VIKINGHILL@aol.com]

Hello,
That is so that the many varried aftermarket and chevy heaters  could be 
installed w/o cuttong any more holes in the firewall. You just punch a hole 
in the firewall pad and bingo another hole to run the circulation line 
through.
Casey
472nd thriftmaster
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959