It was a Race Only Engine, to utilize the Conversion Heads which the Customer already had, and wanted to use.
They can produce very good power.
I'll post up the Dyno Sheet if anybodies actually interested, but as I said it was "Race", and probably not relevant at THAT HP level to a street application.
It would probably bust your car in Half, if it ever hooked, unless it was seriously modified.
As far as costs concerned, it's gonna depend upon "what" a Guy wants ?
If a Guy simply wants the "Eye Candy" associated with the HEMI appearance utilizing a "stock" Wedge Block, then I suspect there may be "some" cost savings namely in the "Block Itself" area only ?
But, thats about it, and minimal at best ?
The StageV Conversion Heads and Kits were a product targeted "back in the Day" when HEMI Blocks were "unavailable" new, and extremely scarce used.
if a Guy wanted that HEMI look, there were few options, so the idea of being able to MAKE a Hemi using the Wedge Block, made good sense ?
Some things to keep in mind when considering the Stage V Conversion Head Route on a "stock" Wedge Block these Days.
* Block lifter Gallery must be clearanced to accept the Modified Pushrod Angles, COST added to the Stock Block
* although the Stock 3/8" Oil Pickup may be used, 1/2" is a good idea, given the HEMI Heads can ZING past 6K before a guy knows what happened.
* if using a stock 440 Crank, Heavy Metal will be required to Balance at the Higher Bobweight Calc.
* still uses HEMI Pistons, and if you are looking for "off the Shelf" units, they will probably have the "stock" HEMI 1.031" pins.(wedge are 1.094")
They will have a different Comp Distance because of the 6.86" Hemi Rod Length vrs the wedge 6.76"
* From the above, easy to see the WHY ? HEMI Rods will need to be purchased ? Length and Pin Dia.
* Expect Bobweights in the 2550 gram range, hence as stated an EXPENSIVE Balance job on a stock Wedge Crank.
* Oil drainback lines(4) will need to be plumbed back to the Pan, as the Wedge Block has no provision, which can complicate Chassis installation when routing.
* For a "street" application, it is highly advisable to simply circumvent the standard HEMI Rocker Oiling issues, Restrict, then go to a Pushrod Oiling System(Chevy Style), or, build Exhaust Pushrod cup Oilers with an Intake Shaft Feed.
Those are just a "few" of the issues off the top of my Melon.
As for the World Aluminum Block, I do not like them "as delivered", and encountered numerous Machining "issues" requiring correction for service.
Even the Main Studs, which are CHINESE, are Mated to "ARP" Nuts to try and fool guys into thinking the studs are ARP as well !
they snap in half under Load stretch testing ! Makes for "interested" phone conversations with World Products, who MAKE the MOPAR Blocks !
I'll NEVER understand WHY a Company would put "ARP" Nuts, on a CHINESE Main Stud ? SNAP !
The StageV Conversion Heads DO look "neat" though.