I crunched the numbers for my BBC 468 with dd2000, and was surprised at the results. This was using real flow numbers for the heads, and actual cam math, going conservative with all other values. I came out with 597 HP/577 TQ, but would be happy with 550 HP/500 TQ real world. We'll find out next summer. I'm going to schedule some dyno time in Salem, OR next summer prior to hitting the track, so we can find out just how accurate this dd2000 program really is.

Motor:
-1974 454 cid 2 bolt block .060 over
-GM forged steel crank
-GM forged steel rods
-SRP forged billet pistons 12.7:1
-SRP chrome moly rings
-Lunati solid 292/301, 259/267 (@ .050), .625/.625, 3500-7200 rpm’s
-Cloyes true roller timing chain
-Melling oil pump
-GMPP rectal aluminum heads
-2.19/1.88 Manley Severe Duty race valves, 11/32 stem
-Crane Gold roller tipped rockers
-Crane one piece pushrods
-Edelbrock Victor Jr. rectal intake
-Moroso seven quart oilpan
-Jegs SFI approved dampner
-Jegs SFI approved flex plate

http://webpages.charter.net/seanthomas/468ddyno2.bmp

Isnt there a dyno in Medford? I know for sure there is one in Eugene. Sorry to be off topic but it may save you some time 'n gas.

I think you will get more than 550hp/500tq out of that motor.
Looks like a solid combo. Then again dyno numbers seem to vary as much as dyno operators. But with 12.7:1, I think you will reach and surpass the goal of 550/500.
I have a 10:1 somewhat smaller SR cammed rectangle 462 that made those #'s, so you should be a shoe-in.

Matt

Originally posted by Pony Hunter:
Isnt there a dyno in Medford? I know for sure there is one in Eugene. Sorry to be off topic but it may save you some time 'n gas. I believe there is one in Medford, but dyno time is pretty spendy. In Salem, 'Dyno Dan' Judy, at Judy automotive is very reasonably priced.