i want to get 400 hp out of my motor. i dont think the stock block can handle that much hp. what all do i need to do to get that much out of my motor with out any power adders??my motor has 130,000 miles on it. thanks

 

ur probably going to have to go with something larger than a 302 if you want to do it without a power adder, or your car is going to run like a dragster. This article i read said they got 405hp out of a stock 302 with AFR 165 heads and 1.7rr with a carb setup, im assuming its flywheel hp. not sure how tho when many combos with a cam and those heads dont get much more than 300rwhp...

 

a good head cam intake upgrade will bring you to 350

 

really that high? what combos make 350whp on a 302?

 

that's during the best conditions and a really good tune

i'm looking at the combination of canfeild heads, TFS2 cam, and a CHP spyder II intake with a bucn hof upgrades to fuel and MAF and stuff like that

 

347 stroker kit, good heads, big cam, rr, hi-po intake, long tube headers, fuel upgrade, bigger injectors, high compression.

 

your chances are pretty slim gettin 400 rwhp out of a stock block and not cracking it in tha first couple hundred miles. for that high i'd go with a aftermarket block. you'd prolly have to go with a stroker kit and to stay small block and come that close you would have to have pretty high compression and make a lot of top end power. this wouldn't be very streetable i wouldn't think though. if you take a 331 or 347 with a little dicking around 300-325 rwhp should be around the range.

 

dss 347 with a 8.5:1 CR, trick flow r heads and intake, stage 2 cam .. all you're fuel upgrades, vortec @ 9 psi and a good tune should get you around 400 rwhp right? and total cost will be up around what .... 6K-ish!?

 

He said no power adder so scratch the vortech idea, also the stock block would most likely hold up for awhile. Over on stangnet.com int he forums there is a guy that has been running the stock block hard with 552 hp on a 302 for well over a yr now. So it is possible to get 400 rwhp but out of a 302 without power adders i think your screwed.

 

Its def possible to run 400RWHP on a stock 302 block. There are a billion people running that. I wouldnt take it past 500rwhp.