426 inch+ small blocks

Petzschler said

just look at the clearances on an LS engine. everything is tighter then a nun's asshole. also, look at oiling system & take a closer look at
the pistons they use. if one tried to run clearances like that on a LA block
it'll fry itself pretty fast. bottom line, you can beAt on a 500+hp 427cid
LS series engine and it'll last for years & years. try doing that with an LA
stroker. not dissing mopar.. but facts are facts.

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Do you have a 500 + hp LS that your beating on right now, that gives you first hand experience on how it can outlast a older stroker? plenty of these new engines develop piston slap, you should be able to tell us why they do since you looked into how they clearance the newer engines, tell us for instance how the piston is sized to the bore..
There are thousands of strokers mainly the old 350/383 chevys that have over 100K