What’s the difference between the 6.2 vs 6.4 short block for forced induction?

Some guys buy a street or street/strip car and others prefer to build one. Doing a proper build isn’t cheap but if you use the right combination of parts it can be very rewarding. I wouldn’t use that pro charger but there are prolly a lot who would

A couple of things worth mentioning: The 6.2 block is better than the 6.4 (high nickle and more metal/less water jacket). Getting rid of the MDS adds to the build price and so does upgrading the lifters if you start w a 6.4
I have no idea what all is upgraded in a HC trans (if anything other the converter) but if your car is not gonna see a well prepped track does it matter?

Xylander said:

A P1SC or P1X head unit won't make 200hp on 5psi. You'd need around 7-9psi for that (7 if you find a way to greatly increase the charge air cooling by way of something like a race intercooler)

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Check out Jannetty racing. Stock scatty (turbos and intercooler installed) at only 4.2# of boost think it made over 650/650 wheel? Stock is around 425/425. 50% gains w only 4.2#. Do not believe you will see that w a centrifugal supercharger : )