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The 5.7 (non-VVT) blocks are a good choice. Just be sure to sonic test the bores. It took me 3 blocks to find one I felt was acceptable. There was obviously quite a bit core shift when these were made.

As far as boost limits on stock head bolts and gaskets - we've taken a completely stock 6.1 engine to 28psi with no sign of head lifting. This doesn't mean I'd build a purpose built engine with this configuration - just relaying the strength of the stock setup. Go with head studs and Cometics.

Modern Mopar Forum is a good place for full tilt Gen III Hemi info if you don't mind the drama.

Here's a link to a thread on pushing a stock 6.1 to the limits:
http://modernmoparforum.com/topic/12184-...e-photos-added/




What I'm looking to build wont use much boost.. maybe
15-20 psi max.. it'll be a stand alone injected with
either a single or twins with intercoolers.. just
a street/strip ride that will only run 10.0 in a
2900# Rampage... I'll most likely get the engine in
and running then mock up for the turbo/s and see what
will fit... nothing fancy for power




You wont need boost to run 10.0 at that weight with a Gen III Hemi. We have a customer with a 3700 pound 4 door, 7L running 10.30 NA. There's several others out there doing the same or close and many daily drivers weighing 4200#'s running high 10's NA.



Yeah I know but when I can get to a few tracks I
want to turn it up to see hat it can run.. mainly
the turbo will be for looks and some fun... plus I
want to run on 87 octane for the street and some 93
at the track... it wont run much boost.. MOST of the time