273 said

If you look the 400 hp 318 combos really no different then what it takes to make a 400 hp 340/360, a 318 just at a higher rpm 5900-6200 rpm peak hp vs 5400-5700 rpms for 340/360.

400-425 hp 318's

https://www.motortrend.com/articles/0810phr-chrysler-318-engine/

https://www.motortrend.com/articles/ccrp-0401-mopar-318-engine/

https://www.motortrend.com/articles/318-small-block-build/

477hp 318

https://www.motortrend.com/articles/0901phr-mopar-318-magnum-engine/

282hp 318

https://www.motortrend.com/articles/mopp-0312-318-long-block-bolt-ons/

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