Heat Passage block off - General Engine (Non-Gen Specific) - Firebird Nation

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Heat Passage block off


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5 replies to this topic

#1 Freddiezee

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Posted 05 May 2020 - 12:20 PM

Can someone tell me a mfg. that sells/makes a heat passage block off for my 455? The gaskets don't cover the ports.

 

Thanks,

Fred Z.



#2 tjs

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Posted 05 May 2020 - 03:48 PM

You must have bought the wrong gaskets.They are pretty year specific with the heat passages changed with some years.Tom



#3 JOE68

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Posted 05 May 2020 - 03:57 PM

I made my own.  I used gasket as a template and cut them out.   then I coated them with high heat paint for extra protection



#4 Freddiezee

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Posted 06 May 2020 - 08:51 AM

Thanks for the replies. These Pontiacs are all new to me. Been doing Chevy's all along. After reading quite a lot I understand about the gasket situation. And if I read this correctly the rectangular port above the square heat port does nothing and doesn't need to be blocked if I choose not to - correct? It does not open into the head - correct? If that is the case, what can I use to fill the rectangular port for the sake of appearance? This is a 72 engine and I am putting an Edelbrock manifold on it.

 

You have all been a great help.

 

Thanks,

Fred Z.



#5 Freddiezee

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Posted 07 May 2020 - 04:31 AM

Any engine Guru's



#6 tjs

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Posted 07 May 2020 - 06:19 AM

Look at 7280 Edelbrock gasket set.I think that is what your needing.Tom






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