The "Throw Away 318"

AJ/FormS said
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BTW; the 340 had forged slugs that weighed in at 745 grams IIRC, and I don't recall hearing anybody ever talk about how slow-revving their first-gen 340 was. Well, the factory cam wasn't good for much over 5500 anyway, and the factory springs barely made it that far..... Oh but don't diss the mighty 340! somebody will want to kick yerazz...
Click to expand...

Actually, 340's had cast pistons, and with stock cam and springs will pull to 6,500 easy. Horsepower for any engine is air flow through the carb, intake and heads and out through the exhaust.