Big horsepower 318 builds

justinp61 said

I'm not sure 230-240° in a 318 will get you 500hp, a solid roller may get it close. I posted my 340 earlier and it wasn't 500hp with a 236/242° hydraulic cam. Even with ported Edelbrocks I shifted it at 6400, anything earlier or past 6600 and it slowed down.

If I were building this engine I'd be looking at cams in the 250-260° range and around .600" lift, most likely a solid roller.

Your mileage may vary.

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In that eg.. I stated don't worry about hit 500 hp Just use Trick Flow/318 combo and cam it to be somewhat streetable and make big power. But the the ford 302 and the 5.3l LS in those videos I showed did made 500 hp on 230-240 cams the chevy 302 did have way more cam but did make 543 hp and the 4.8L LS had the smallest cam something like 225 but did come up a bit short. All these engine peaked in 6700-7300 rpm range. The 250-260 would be more suited for Trick flow heads but I think you'd be making way more than 500 hp which is great but it would be a total race engine, Toolmanmike never said it had to be streetable :)