blown engine

fryzia23

Earlier this year while running on the track, the engine started to knock heavily. After finishing up my garage setup with proper lift, finally pulled the pan and found bunch of metal pieces. Could anybody confirm this would be a bearing? I'm getting used long block from 2017 with 15k miles this weekend and contemplating how deep should I go with my build. I'm running GTM supercharger stage 1.5 with 513whp and 387whtq. Gonna be basically full track car from now on. All the work would be done myself unless I need machined parts.

Scenario 1:
Boundary engineering oil pump gears with their cover(not sure which shim spec should I go with)
New water pump, upgraded Oil gallery gaskets new seals etc.
Race fuel tune or E85 and see how it holds up as I think the culprit is most likely oil gallery gaskets failure but wont know for sure until I tear the engine down. Running on uprev so leaning towards race fuel since E85 is not supported.

Scenario 2
All the above, tear down of "new" long block, inspect crankshaft and block for any damage. If good, clean up the block and upgrade to race main and rod bearings, stock bore and 11.1 CR wiseco pistons with K1 or brian crower connecting rods. Most likely stick with stock OEM hardware for bolts and head gaskets.

Would it be a bad idea go with the 2nd option without grinding/polishing the crank and doing extensive engine block machine work? Maybe just bare minimum to clean and inspect the block.

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