07NBSChevy

iTrader: (1)

So before I take my engine in to get it dyno'd I was wanting to see what you guys think it will do. I am hoping for 420+ HP, but will find out next weekend.

Specs on Gen4 LMG 5.3 Iron Block:
-Brian Tooley Stage 2 Truck 3-bolt Cam, 212/218 .553/.553 113+2 LSA
-LS7 Lifters, .081 Preload
-PAC 1218 Valve Springs
-PAC R511 Titanium Retainers
-PAC Lightweight Machined Valve Locks
-Straub/Smith Brothers Bronze Trunnion Upgrade with ARP Rocker Arm Studs
-243 Heads, TSP-PRC Stage 1 Ported, Milled 0.00975" to 63cc Chambers, LS6 Hollow Stem/Sodium Filled Valves
-Cometic 3.910" Bore, .045" Compressed Thickness Head Gaskets
-ARP Head Studs
-Comp Cams 5/16" .105 Wall, 7.350" Pushrods
-Stock NNBS Truck Intake
-LS3 90mm Throttle Body, inside has been polished (If that makes any difference).
-Stock 33lb. FlexFuel Injectors
-Short Block is pretty much stock with flat top pistons, I did do ARP Rod Bolts and ARP Main Studs and had it line bored
-Melling 10295 Oil Pump, LS2 Timing Chain, LS2 Dampener
-ARH 1-3/4"x3" LongTubes
-0.038 Quench, 10.5:1 Static Compression, 8.5:1 Dynamic Compression, Blackbear 91 Octane tune.
-AC Delco 41-110 Spark Plugs, .040" Gap Setting
-Mobil 1 Extended Performance Synthetic 5w30 Oil and Filter (If this actually makes a difference haha)

I know I can not expect to much out of a small cammed 5.3 but I am excited to see what this little guy can do, especially in a 5400lb 4x4 Truck with a 5" Lift, 34" tires, and 4.56 gears. This will be my Tow Rig for when I do get my 2004 Torch Red C5Z.

G Atsma

Looks like you might have to actually dyno it and let us know in the dyno section seeing as how nobody can/will speculate on power. I am curious myself and hoped someone might chime in with at least an educated guess. Oh well.

madmike9396

iTrader: (29)

I'm going to guess it easily breaks 400 crank hp.

G Atsma

Sounds realistic... with that cam should have a decently civil idle too...