Cheepy Three-Sixty build
One of the earliest decisions in an engine build is the piston selection. This can be kinda tricky when your engine family has a scant piston selection and becomes even trickier when the compression heights offered are in the basement. Having a set of Sealed Power H405CP .020" on hand made this choice easy. Before decking a quick sonic test confirmed yet again that the "early 360's were cast with the 340 cores so the cylinder walls are extra thick" is a MYTH. While the cylinders were quite consistent they are no thicker than an average LA 318/340/360.
Zero deck--The math went like this:
Stroke 3.58/2=1.79
Rod Length =6.123
Comp HT =1.637
Zero deck =9.550
After decking the block height measured 9.549"-9.5495". The rods being used will be Magnum rods recon'd with ARP rod bolts so they will wind up .001-.002" shorter which puts the piston pretty close to zero deck. J.Rob
One of the earliest decisions in an engine build is the piston selection. This can be kinda tricky when your engine family has a scant piston selection and becomes even trickier when the compression heights offered are in the basement. Having a set of Sealed Power H405CP .020" on hand made this choice easy. Before decking a quick sonic test confirmed yet again that the "early 360's were cast with the 340 cores so the cylinder walls are extra thick" is a MYTH. While the cylinders were quite consistent they are no thicker than an average LA 318/340/360.
Zero deck--The math went like this:
Stroke 3.58/2=1.79
Rod Length =6.123
Comp HT =1.637
Zero deck =9.550
After decking the block height measured 9.549"-9.5495". The rods being used will be Magnum rods recon'd with ARP rod bolts so they will wind up .001-.002" shorter which puts the piston pretty close to zero deck. J.Rob