300 HP out of a 318, is it possible with bolt ons?

madjak.06 said

One day I'll take the time to port the heads, find some hypereutectics, steeper cam, all the goodies!!! Thanks for everyone's responses, for now I'll continue to shoot for 270-300 HP at the crank :thumbsup:

Click to expand...

Here's a couple of 400 hp 318 builds, see what heads can do down the road if you choose.

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

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

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

Here's a similar 400 hp 360 for comparison

https://www.motortrend.com/how-to/59l-magnum-engine-make-mine-a-5-9/

If you look at the main difference between these 400 hp 318 vs 360 between peak Torque and HP is rpm, 318 = 4900-6200 rpm 357-400 hp (could argue this 318 has a slightly better under the curve), 360 = 4200-5600 rpm 336-400 hp, would have vary similar power curves, Stall to Shift points if stalled and gear right.


VS