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#1
03-01-2022, 11:29 PM
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455 Sonic Check Results
I finally got an update from the machine shop that’s working on my 455. The sonic check came back, and the verdict is.. so so. Most of the thrusts appear marginal, but there’s concern on the forward sides of 3 cylinders. This block has been subjected to some butchery. It had a sleeve, and then popped a crown off a KB hypereutectic and cracked the sleeve :/ so it needs a sleeve to replace the sleeve. It currently has a 4.18 bore, machinist says the remaining bores have some issues, recommends an overbore to 4.21. On cyl 3(marked on the sheet as 4) that will only leave ~0.060” on the bottom, and and cyl 5(marked 6) will have ~0.080” on the mid and bottom. What do you guys think? Is my block junk?
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67 LeMans, 326, M20, 3.31 12 Bolt Last edited by Joe-Touring; 03-01-2022 at 11:36 PM. |
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