
Originally Posted by
400HPONGAS
Pat303 as Ive built many 308/304 5 litre strokers from 350 to 550HP Ill spec up and cost say a nice mild (400HP/400ft/lbs/4000rpm engine)
First get a VN to VT Block and heads , easily obtained for around $500
355 STROKER hIT ,Made up of NEW CRANK,Rods,Pistons (Flat top 383 chev Hypereutectics Final comp 11:1),Rings ,Bearings,Gaskets , In SCAT,EAGLE,COME ,depending on your savvy $1500 to $2000.
Machining " Bore , DEck plate Hone . Line bore Mains, ARP 2000 mainstuds .Deck block to Zero , fit cam bearings , deck heads to 52 CC Chambers $1200 .
CAm , Solid 222 /220 Backsplit 108 LCS in at 6 degrees advanced .500 Lift . $230 for Cam !!. Pocket port , and Newen valve angle job , Port work $1000, Stainless (std 1.94 inlets) valves .Crower/Iskederian springs locks and lash caps , Solid lifters , Romac Timing gear and grade 3 iwis chain $500 A nice set of YT Platinum roller rockers $1000 . All up , for a No compromise motor , that will easuly do 500HP (with a bigger cam) thats $6000 . Then depending on whether you want to Run EFI or Straight LPG (Dual fuel is a Joke and is not worth the effort) Say anothe $!000 for inlet manifold/throttle body setup . The Bunch of Bananas on a standard EFI 5litre is a Disaster By the time you get the adapter plates/mounts/various changes to Radiators and a Exhaust system , you wont get much change out of $10.000 fitted .
So for $10.000 you cab equal a $200,000 Rangie .with 500HP and do it Naturally asoirated instead of Supercharged . The 355 stroker will eat the Rangie motor even with the Supercharger !!! PS for a extra $1000 id definately use the 383 or even the 396 crank , true torque monsters . ! (Easy 500HP/500Ft/lb/5000 RPM . )
Now when upgrading one of the Rover based engines , please ensure you do actually replace everything with new , and by the way that had better include at least a set of Wildcat heads and welded in Liners !!!
And for those Power nuts , fit a set of Dash=9 alloys (Now thats 50 KG off , jeez only weighs 40KG more than the Rover POS)fully ported with 2.080 inlets and Viola 600HP , dont forget the COME 4 Bolt double register mains
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