318/360 Crank/347 running on Dyno
usually if you step away from normal you take a bit of heat.
Kudos to the builder!
...3.90 x 3.62 has been good enough for the Corvette for many years!
I built this engine using the parts I did for primarily 2 reasons.
1. To see what all the hype was about these '302 heads
2. To see just how a 'teen would respond to the stroke of a 360.
Summary:
1. '302 heads do have a nice chamber--that's no big deal on a mild low compression build. I could and have milled open chamber heads to perform as well or better. Anyone actively seeking and going out of their way for these heads--needs to understand that Magnum heads and their variants are
FAR superior. If there was a class of racing that specifically listed these '302's as
THE only casting to use I still
WOULDN'T use these heads. I would EDM a fake casting number into a set of Magnums.
2. The added stroke and piston speed did just what you would expect to the 318. It added cubes which added torque production. In fact I have pulled this engine down to 2200 rpm and it still made 340+ ft/lbs and carried over 350 ft/lbs all the way to 4600 rpm. I know this engine would be a bloody good daily driver which is exactly what I built it for.
It was a neat experiment for sure. Maybe I should do another one with '302 heads and then switch heads to Magnums and then switch manifolds and then switch cams and then......You get the picture. Thanks for the interest and positive responses guys, but if you want big power then start with a 360. If you want even bigger power then build a stroker. If you want any kind of power use Magnum heads/NOT '302 castings. If you want an awesome smooth economical 318 based build with torque everywhere then copy this build. J.Rob