Precision Race Components Stage 2.5 5.3L Cylinder Heads,Texas Speed & Performance Custom-Grind 233/239 R.2 Camshaft: 233/239, .600"/.605", 113 LSA, Texas Speed & Performance Chromemoly 7.40" Pushrods, Rollmaster Double-Roller Non-Heat-Treated LS1/LS6 Timing Set, Standard Bearing Texas Speed & Performance Modified LS6 Oil Pump, Basic GM Heads & Cam Kit: Head Bolts, Head Gaskets, Timing Cover Gasket, Front Crankshaft Seal, Balancer Bolt, Water Pump Gaskets 160* thermostat and under drive pulleys with ls6 intake 3800tc and 3.73gears

with that setup my car made 385rwhp/380rwtq untuned and through an unloked convrter before my rod bolts went on its first pull

so now im looking at putting this same setup on a zl402 iron low compression block till i get a super charger my question is what kind of numbers should i put down?

p.s. sorry for long post

 

How low of compression? That will have a lot to do with your power output. Personally I wouldnt even waste the time/money dynoing a motor that is built for a supercharger but doesn't have it installed yet.

 

well the motor will be 9:1 but thats not based with my heads which are 62cc so im not sure what the final comp ratio will be if any one know how to find that out please let me know
here are specs on motor

Built entirely from brand-new parts.
Sold outright, no cores required!
GM LQ9 iron 6.0 liter block (includes block plugs)
4.000" Eagle 4340 forged steel crankshaft, balanced to rotating assembly
4.000" Ross 2618 forged alloy pistons with -28.50cc dish (includes new rings and full-float pins)
402-CID displacement
Eagle 6.125" H-beam rods
Includes new, factory-installed cam bearings; Clevite rod and main bearings
9:1 compression ratio (nominal; ultimate compression ratio will depend upon heads and gaskets used)

 

t t t

 

my question is how much hp will i make while my new engine is in NA form

 

t t t

 

It's really too hard for people to answer, simply because people dont build lower than stock naturally aspirated motors since it doesnt make any sense to do so.

 

well i finally got everything together and on the dyno
and the car made 406rwhp/446rwtq with a unlocked
fuddle 3800tc and 3:73 gears with an 8.5:1 compression ratio but i need to get bigger injectors and ill make some more power but i need to break the motor in a little more before i can do that,but now my problem isnt power its traction lol oh yeah ive decided i will turbo the car but not till some time in the near future