I'm building a 400 (+.060) block, with a 4.250 stroker crank, making a 468.
I bought a partially assembled short block, cam and crank were installed.
pistons, rods, rings were still in boxes. block was already bored, but not decked, and I am getting new cam bearings installed, my machine shop guy wants to re-balance the rotating assembly with the balancer and flywheel. and he is going to fit the rings (Mahle, forged flat tops, 9.7 to 10.3:1 depending on how much we deck the block, and the thickness of the head gaskets.
I ordered Edelbrock D port heads, CnC'd to 310 CFM from Kauffman, i expect those late may or early june.
the cam that came with this stroker kit is a Butler Grind Comp cams BP8022SP
.510/.520 lift 281/287 duration. 112* lobe separation.
When i put a couple used LS2 lifters in it (from an 05 GTO) and rotated the cam, the dogbones lifted about .030, and it looked like the full bottom of the lifter hit the lobe a little lifting the wheel from the lobe.
I have some 2148s showing up to try, but I wanted something factory reliable and lightweight instead of the heavy link-bar type lifters.
I do NOT plan on taking this engine past 55-5600, but I want a smooth operating valve train.
Frank
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