400 with 350 parts?
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from Summit... https://www.summitracing.com/int/parts/tfs-30410003/overview/
"These heads only fit engines with a 4.000 in. bore or larger. Requires drilling steam holes into head on 400 c.i. applications. "
"These heads only fit engines with a 4.000 in. bore or larger. Requires drilling steam holes into head on 400 c.i. applications. "
Yeah it's a kit and I was wondering if I would have to do it to those heads I'm pretty sure that the same as the ones you showed me though
it doesn't got to a kit either....
https://www.google.ca/search?q=https://www.summitracing.com/parts/tfs&ie=utf-8&oe=utf-8&client=firefox-b&gfe_rd=cr&dcr=0&ei=rquUWvn5Kqbz8weZr4CIAg
but if those are the heads they look really good for that price
Seems like one of are club members built a 400 and welded up the holes and has been racing it for a few years with no problems. 😎
Maybe so but I don't know why you would spend the time to heat up a cast iron block just to weld up some steam holes when you can just drill 6 holes in each head in a matter of minutes and keep it as GM originally designed the steam holes to work.
He's also running a Internal balanced crank so he can run a 350 flywheel and balance. 😎
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