This is the block I have been racing the last few years. 1979 E58 motor originally. Sonic checked around .2 on the average. Lifter bore pic shows the holes located in the middle of the bosses. Block is about a 1/2 fill and 4 blt Milodon caps. Blower motor making about 650 HP. No problems so far. 4" stroke and .040" over.

lifter bores.jpg4blt mains.jpg
Last edited by Crizila; 06/07/16 01:01 PM.
Fastest 300