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**Sandtrap9072** · 11-09-2013, 12:18 PM

So, my truck has had a big block 454 installed, my issue now is that the headers are leaking, turns out someone put sq port headers on oval port heads hense the leak. the headers that are currently on it are the 69110 headman headers. i want to replace the headers but the other issue is that the exhaust pipe coming out of the num 2 cyl hits the frame. I believe the engine towers are the orig sbc towers and the firewall has been beat back in some spots to make clearance. my question is has anyone just put a bbc in on the stock 350 towers and mounts if so what headers did you use? Any help would be great.

11-09-2013, 12:18 PM	#20
Sandtrap9072 Senior Member Join Date: Apr 2012 Location: Michigan Posts: 388	Re: Big Block Conversion in '72 Blazer ?'s So, my truck has had a big block 454 installed, my issue now is that the headers are leaking, turns out someone put sq port headers on oval port heads hense the leak. the headers that are currently on it are the 69110 headman headers. i want to replace the headers but the other issue is that the exhaust pipe coming out of the num 2 cyl hits the frame. I believe the engine towers are the orig sbc towers and the firewall has been beat back in some spots to make clearance. my question is has anyone just put a bbc in on the stock 350 towers and mounts if so what headers did you use? Any help would be great.