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Use a new head gasket for a template. The larger hole should be 1/4", and the smaller one should be 3/16".
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∙ 13y ago
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350 vortec heads on a 400 small block?
You must drill the steam holes in the heads to coincide with the ones in the block or it will overheat QUICK!!!
Putting 1999 Vortec onto 1984 engine?
it will work I have vortec heads on a 72 400 small block, I had to get the heads reworked for the 400s water ports or steam port and a vortec type style intake will be needed
Will 350 heads fit a 400 block?
350 heads will bolt to the 400 block. They will need to be drilled for the "steam ports" in the 400 block.
Can you use 350 aluminum heads on a 400 motor?
Yes. For street use you should drill the steam holes using a head gasket as a template.
Why do i have to drill steam holes into the engine block when installing heads.?
The Edelbrock head have extra holes that connect to the main water passages. I believe the steam holes help prevent any sort of vapor locking in the water jackets surrounding the cyllinder sleeve. Must allow the steam to escape up to the cyllinder heads. Apparantly older 289 and 302's didn't have these. Just don't break off the drill bit like I did!
What is a steam drill?
A steam drill is a type of drilling machine that is powered by steam. It is commonly used for drilling holes in rocks, especially in mining and tunneling operations. The steam drill revolutionized drilling processes by increasing the speed and efficiency of drilling operations.
What did John Henry beat?
He beat a steam drill
Who used the steam engine to drill for oil?
Drake
Who invented the steam engine oil drill?
edwin drake
Who used a steam engine to drill for oil?
Venango Rigs
What invention helped John D Rockefeller?
The steam Drill
Who invented steam engine oil drill?
edwin drake
