Quote: The 5.7 being a 3.92" bore and the 6.1 being a 4.05" bore, do you see any real drawbacks using a 5.7 block besides the obvious lower cubes? Was wondering if there would be an issue with airflow around valves, especially if stepping up to larger valves like in the 6.1 heads or the newer Apache 6.4 heads.
If you look at what Bischoff did with the 5.7 in the Engine Masters, I'd say it's not nearly as bad as if it were a wedge deal. I know the EM stuff is very trick, but I have a hard time believing you couldn't make 700+HP with a high compression, large cam'd stroker 5.7. I'm sure the larger bore engine will be easier to get more power out of, or easier to hit a certain HP #....I know I wouldn't mind having an aluminum 4.125 bore block to go in the duster!! But we'll focus on the 5.7 blocks for cost and availability reasons.
