ok, before i get the "do some searching" reply, i have searched and read but i'd like to get some real world opinions. I'm looking at maybe getting a cam and some heads, or a cam and some head work. Considering the mods in my sig what do you guys think would be a good cam for some mid 400rwhp numbers and solid 11sec runs? Like i said i was researching and have looked into llyod elliot and such, i'm just getting some opinions.

Thanks Chris

 

are you wanting a good solid daily driver that sounds good? if your gonna do head work i would go with the cc306 or gm 847 those two will definatley put you into the 400 hp range. however, im partial to the cc 503. i put it in my car with the factory heads and it sounds great and runs well. and it plays well with the stock bottom end rpm range. if you rev the 306 or 847 to their full potential on a stock bottom end you will be asking for trouble. period. i spun a rod bearing with the 503 but i had over 100,000. id say you should be able to hit 400 with the right supporting mods, a good dyno tune and a cc306 or a 847. with factory heads, a cc503, my listed and newest mods im hitting 370rwhp

 

thanks for the input. i was looking maybe into the gm847. i'm going to call thunder racing monday and talk to gene, see maybe what they think. as long as it sounds good and breaks 400rwhp i will be happy.

 

The 847 will NOT break 400rwhp without heads and once you give it heads it will want to spin high enough to put the stock shortblock in jeopardy. Stock heads choke it so it does not need as much RPM with them but good heads will have it peaking over 6500 meaning with a good valvetrain you are going to need all the rpm capability of the pcm.

IMO your best bet would be to copy this setup. PROVEN and reliable.
http://ls1tech.com/forums/lt1-lt4-mo...s-429rwhp.html
Cam is smaller than the 847 duration wise.
MPH suggests this thing has low 11s in it at least with traction.

 

Well if it was my money I would at least call up or check out

www.advancedinduction.com

they will Do a full cnc job and give you a custom cam for $1900 plus your head cores . also if you get the 200cc and send in your intake.

get the Street/Strip Ported Intake w/ Corrected Geometry


100% CNC Ported Intake & Exhaust runners
100% CNC Unshrouded & Re-contoured Chambers
100% CNC Competition F1/Cup Quality Valvejob (TIR < .00012")
Re-Machined Intake & Exhaust Flanges & Valve Cover Rails
PCD milled to ensure flatness, surface finish & achieve desired chamber volume (52-56cc)

200cc lt1 heads

Genuine Pacalloy 1220 "Beehive" Springs
Ai Custom Machined & Hardened CrMoly Locators
Genuine CompCams Machined & Hardened 10deg Retainers and Locks
Custom Manley Stainless Pro-Flo Valves 2.00" Int/1.56" Exh w/ Steel Jacketed Viton Seals
Both Pressure and Hardness tested to ensure the casting's integrity & ability to seal
Core must be casting number 10207643 or 10128374
Ai 8620 Induction Hardened Billet Core Custom grind camshaft included!

they also have 190cc for 1400.

 

dont get stuck in the "heads must flow a lot to run good" hype. Look at old camel hump heads, they blow ***** but run good. I know a person with small valve heads flowing 27x running 10.80s.

 

thats what i said wasnt it? if your looking for more than 400 rwhp on a n/a motor you need to have heads.

 

thanks for all the input. i was planning on getting some afr heads. I talked to thunder once about maybe getting a topend put together and they suggested while i got the cam and heads to put some arp rod bolts in it. it sounds like a plan. i have an extra lt1 at the shop with lower miles i may get the work done to then drop it in.

 

get the ARP rod bolts, and new bearings, and you'll be good to go for a while.

 

Find an actual case of AFRs working on a stock shortblock, NOT just the bench racers screaming how good they are actual documented in car results on a 350. Better yet find them as cast too or factory ported.

I am not talking all out race 383+ with professional port jobs that is a big investment there.

 

I would do that and Le2's/847 cam. I dont remember who but 6-8 months back someone put down 440/390 at the tire with that combo. He had all the supporting mods but regardless those are dam good numbers for the topend hes running.

If it was me it would only be LE/AI to pick from. Mainly based off the results in recent years.

 

id personally go with eric bradby ive seen what his porting can do with less CFM than lloyds or phils, but they too do good work. Its all personal preferance, and who makes you feel the msot comfortable.

 

reamo04 do you have any contact info for eric bradby? google search got me nothing. thanks.

 

thanks for all the suggestions. i would like some contact info for eric bradby as well.