[Milepost]

Originally Posted by BruceWilkie

BTW

IMO going to a 301 deck height block you really dont need to raise the cam tunnel. Its already same place as our standard deck and I dont think you could run a stroke long enough to require it with the short deck height. More material for roller cam bearings would be a plus though. Big advantage to shorter deck is shorter lighter rod and good compression height on the pistons to cut recip weight. Cast in bosses to accomodate 6 head bolts would be nice as well. Shorter deck allows intake design that has shorter runners which favor higher rpm. A smaller main journal would be a plus but I think with oil path improvements we could get by with a 3" main.

I think its time we went LS huntin'!

I agree Bruce. Main reason for raising the cam tunnel is to allow a 60 MM roller cam core. Extra head bolts should be pretty easy to add (like the Mopar R3 blocks). 3" mains are probably okay up to 8500-8800 RPM but 2.5" mains and priority main oiling would allow us to hit 10,000+rpm without major oiling problems. BTW a 3.75" stroke / 4.350" bore = 446". Add some 510-520 cfm "pro stock" style heads and watch the BBC crowd cry foul!!