450rwhp in a F-body???
head and cam setups go from mild to wild
450 is a strong head and cam package. If you are looking for #'s like that, i would look at some AFR heads, a pretty good sized cam, and the fast 90/90 intake.
btw, I think MS3 + bottle is an awesome way to make power if you're into that sort of thing but then again spray is even less "motor" than turbos or blowers.
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Sound steep? Look at this list:
-AFR Cylinder Heads
-Camshaft
-Underdrive Pulley
-Ported LS6 Oil Pump
-Double Roller Timing Set
-Hydraulic Roller Lifters
-Cometic Gasket Set
-GM Gaskets and Bolts
-ARP Head Studs
-Mezeire Electric Water Pump
-NGK Spark Plugs
-MSD Spark Plug Wires
-SVO 30lbs Fuel Injectors
-Air Intake
-FAST LSX 90mm Intake Manifold & NW 90mm Throttle-Body
-1-3/4" Longtube Headers
-Catback exhaust or True Duals
Sure, you can go with cheaper heads and leave off the FAST and save 2k+, but you really shouldn't skimp on anything or omit what I posted. Not if you want to do it right. If you already have headers/intake/exhaust, then you can subtract a good 1k or more depending on what you purchased. Still, after subtracting those items, you're down to around $5,000.
My thoughts exactly. I see a number of folks making ~415-425whp with modest heads and a nice chunky cam, a little more massaging of the intake w/ a 90/90 setup, TB, fatter LT's etc.. and it's not so far off IMO.
also, i bought the heads (barely used), cam, 90mm throttle body, pacesetter headers, 85mm lid off of this site and save alot of money. you can find alot of good deals on here.
Sound steep? Look at this list:
-AFR Cylinder Heads (Nice, but could go with heads half the price and achieve 450rwhp)
-Camshaft
-Underdrive Pulley
-Ported LS6 Oil Pump
-Double Roller Timing Set (Could go with a single ls2 chain and save >$100)
-Hydraulic Roller Lifters (Don't need, but a good idea)
-Cometic Gasket Set (Definatly don't need to spend $200 on gaskets when you could get GM MLS for <$80)
-GM Gaskets and Bolts (Not sure what this is for if you already have cometics and arp studs)
-ARP Head Studs
-Mezeire Electric Water Pump (definatly a waste of money if you are only trying for 450rwhp)
-NGK Spark Plugs
-MSD Spark Plug Wires
-SVO 30lbs Fuel Injectors
-Air Intake
-FAST LSX 90mm Intake Manifold & NW 90mm Throttle-Body (Ls6 with ported throttle body will get the job done and save $1500)
-1-3/4" Longtube Headers
-Catback exhaust or True Duals
Here's my list:
All gaskets (thunder) - $230
ARP Head Studs - $235
PRC springs & TSP Pushrods - $370
Cam - $350
Underdrive Pulley - $190
Ported LS6 Pump - $130
LS2 Timing Chain - $35
NGK Plugs and MSD Wires - $70
SVO 30# Injectors - $300
Lid - $100
Ported TB - $75
LS6 Intake - $450
Pacesetter LT's - $375
TSP Duals - $410
Patriot Stg. 2 "ls6 style" heads - $1300
Comp 850-16 Lifter $180
You could probably save another $300 by buying the gaskets you need individually and using the GM bolts and gaskets supplied by patriot.
That right there should net you ~450rwhp. Keep in mind that if you went FI you are going to need half of the stuff on this list anyhow to be effecient.
That's a total of $4,800 with the studs and gaskets or $4,500 using stock GM stuff which is perfectly fine. A far cry from $8,000. And it's still done right.

If you wanted to skimp here and there you could get this done for <$4,000 but I wouldn't want to go to bed at night wondering if my lifters, oil pump, injectors, or stock gaskets will hold on.








