Aluminum slant block

CNC-Dude said

No, this is actually a better, different approach. The blocks already have sleeves in them...The method I presented has been around for over 30 years and has allowed the sport compact guys to achieve over 1000 HP out of their early open deck Honda 4 cylinder blocks....

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I proposed a Darton sleeve idea a while ago when discussing all-out Slanty projects. I suppose it could solve an Al-U-minimum block as well, but unlike a Honda the head bolts aren't deep-block, they are deck/outer wall. That would present a challenge, but I'm interested in the solution.