The 302 Ford blocks are notorious for splitting at 500 - 550 hp and so is the new 360 Chrysler Magnum blocks.

Do you know why?

 The answer is simple it is your intake manifold causing all of your problems along with cap walk. What happens is when you bolt up a 302 Ford and 360 Chrysler Magnum manifold your bolts will go straight down and what this does is puts a wedge into your blocks. When you start creating decent horsepower and your caps start moving inward they will egg-shape and cause the cap to lose its register. When this goes unattended for a period of time it will put stress on the hardware holding your cap in place. This will push the stud or main bolt over enough to crack the stud housing.

Once this occurs the wedge in your block that was put there by the intake manifold will automatically split the block in half because of the weak design. If you look at a small block Chevy the intake design is totally different. When they install the manifold the bolts go in at an angle putting a pre load into the block and pulling it together.

The Bessel Block support design puts a .003" pre-load in your block (basically pulling the block together like the small block Chevy does) and is held in position with dowel pins and cap screws. Simply put, the Bessel Block support system overwhelmingly increases the blocks stability. These are precision block supports which are designed from the center line of the camshaft. The supports must be installed with a bridge-port or CNC machine. Come with all hardware and instructions.  (U.S. Patent Pending)