OttawaLS1

Goal: 420-450rwhp

Budget: $2500 (give or take a little)

Mods so far: Hooker LT headers, Hooker ORY, Magnaflow catback, 3.42 gears, 3200 stall TC, air lid, NGK plugs, 160 t-stat, Predator, tranny cooler, LCA relocators, Z06 wheels

How can I reach 420rwhp (minimum) without forced induction and possibly without heads?

Was thinking: Futral F10 Cam, Holley/Ling intake, Manley ChromeMoly 7.400 Pushrods, Manley Valvesprings and Ti Retainers, Rollmaster Double Roller Chain, HS Roller Rockers, TR Ported LS6 Oil Pump, Shaner S3 Ported TB (thanks Blacker for the list ). This will eat up about $1800 or so.

Any other suggestions in addition or to change any of these?

TA TED

As most will probably tell you, your gonna need heads to see those type of numbers normally aspirated. I'm shooting for that range myself. Your only other option would be laughing gas.

Sheomet

Might want to consider the TRex cam. I think Thunder got around 450 hp out of it on stock heads.

OttawaLS1

The t-rex cam was an option... but it would need serious tuning, and also he said I would need 4.10 gears and a high stall converter... making my car not highway friendly AT ALL!

I thought about the nitrous too, but now here in Canada all the refillers have gone since it's illegal now

JoSeY

The Trex has made 400+ on more than one car....get all your bolt ons, a good tuner and put in the cam....with the newer cars and depending on how many miles you have on the car swapping chains and oil pump might be a waste. I'm hittin 440 right now thru a big converter.....I've had 100-150 shot of gas on mine since aout 50K....@ 85K I put (See Sig) in the car....I have over 110,000 and I'm still on stock chain and oil pump....idle 45psi WOT 70-80psi...

Oh....and the car still see's 100 shot all the time....