Brainstorming Ideas for 400-450 hp 360 Build
What if I started with a good running magnum 5.9. Keep the bottom end stock and just get good heads, cam, intake and carb? Put the money into good flowing heads?
IMO, this is a great way to go about it inexpensively.
(And what I have also done and am doing now myself.)
The first thing you need to check is the cylinder bores for wear. The engine should still show the cross hatching. If there good, probably, it still worth the check, the mains and rod bearings should be in good shape. Look for the lowest mileage 5.9 you can. These can normally be found at a good price.
IMO, skip the Hyd. roller in favor of a solid roller and solid roller lifters if the wallet allows of course.
Move to a aluminum cylinder head and port it.
Even a moderate cam (like a 230 or 236 @.050) will make 400+hp easy. Use a cam with a good lift to take advantage of the cylinders improved head flow. Check for valve to piston clearance! If you clear, let’er rip!
You can finish the engine off with;
A 750 carb
RPM intake
Headers - 2-1/2 pipe exhaust.
Upgraded distributor & coil
Get your gears and converter to match and it’ll be a great street runner.
Been there done that, on the second time around now. The only draw back is the compression ratio. It can be a little low, depending on your cam choice and ultimate goal.
Here is a thread to look at. Admitting his combo is t great, he still does well. Scroll down some and find it in post #4.
Click here —>
Won my first race in a while Saturday night