witm were do you find the eagle heads, also you mite conseader of set grinding your crank & going with a set of 1.85 or 1.88 rods, you can get a set of real good rods on e-bay, if you need any help with this let me know,there was a set of lentzs 1.88 x 6.2 that didnt sell for $90.00 + $13 freight 2 days ago, i run these in my 850 hp circle track r3/w9 engine,also putting them in our new xr2 397 were building,later my freind