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03-14-2019, 06:42 PM | #1 |
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Exhaust Heat Passages
What material is best to block exhaust heat passages on iron heads, SBC?Also, what is best procedure to accomplish from intake side, thanks, Tony.
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03-15-2019, 08:46 AM | #2 |
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Re: Exhaust Heat Passages
I haven't done any in a while ,but I used to use old cast pistons ,busted them up and melted in a iron pot on a turkey fryer burner . skim off the dross before pouring.
Make sure you have enough to do the fill in one pour . It helps to preheat the head casting as well to prevent the pour from shocking the casting and keeps the aluminum from chilling before the fill is complete. I used furnace cement and chimney packing to dam the crossover in the port side and filled from the manifold side . Be safe , take your time.
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Tom Goldman 1500 SG , 1506 STK |
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03-15-2019, 12:35 PM | #3 |
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Re: Exhaust Heat Passages
thanks Tom, Tony
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