Just wondering ^. Is this possible without going solid roller or sheetmetal intake? Would it be street driveable?

 

No. No. No unles you have 20gs to spend

 

Ok, about how much HP/TQ would some ported AFR LT4's with 847 cam/ custom cam with 383 produce? Again, just curious.

 

Defenitly without the sheetmetal intake. Probably not without a solid roller.

Drivability would depend on the person.

 

What do you consider driveable? Some thing making 500 at the wheels na, is going to a fairly wicked motor. With a HYD roller cam car, it could happen. It would take a lot of cubes, with a lot of compresion, very well worked AFR heads and a cam that is large and designed to work with the heads. It would also take a lot of header as well. The intake manifold would have to be well worked with a monoblade or some thing of the like. It can be done, but I wouldnt drive it a 100 miles a day in traffic.

 

Just about anything is possible if you're got more money than you know what to do with, but it's easier to build a 400 rwhp NA stroker and add a hundred shot of N2O. Doing it that way it would be infinitely more driveable as well as more budget friendly.

 

500 rwhp is going to take a solid roller or race gas compression. Pick your poison.

I agree with the above, shoot for 400rwhp (easy) and spray it.

 

Turbo/Super/Juice are the only ways you are gonna drive a motor producing that much HP daily. Just because you can control the amount of power you get, actually delete the super, a turbo or juiced car with 1000+ hp can be driven daily and is very tame, but not an NA motor, if its even possible with an LT1 (lt1 meaning LT1 heads/LT1 intake)

 

large displacement LS1... sad but true.

 

I'd do the pray thing, just a well built forged 383, that can take a 250 shot on race gas

 

Someone agrees with me!! Ha ha, I've got em fooled now...

If you haven't already killed your stock LT1, invest in a supercharger and call it a day. As long as you keep the boost levels reasonable it should last for a while and easily make 400 rwhp. Plus you can add it to a stroker and get your 500 rwhp in the future. The biggest benifit being that you don't have to constantly refill bottles.

 

Get rid of the stock heads. Period. Or anything like them. There's already a few members on this board who have broken 550rwhp with the LT1. But they had heads radically different than what you'd bolt on.

Mindgame hit 568rwhp on a NA 383 with about 11:1 compression using pump gas(solid roller and LT4 intake). And he said it idles about like a CC306 in a 350. But he has converted GenI heads. Jim hit 647 crank hp using RR 23* AFRs and custom intake. Both are "street" machines, if you will. And one member has SB2.2s on his LT1...I wonder what that one will do (said to make near 700rwhp when done ) .There are a couple more that did it, but they don't say much about it.

500rwhp NA is plenty possible on our cars. It just depends on the route you choose to take to get there. Better heads are a MUST though so get ready to put up some $$$. And a solid roller might be a must, not too sure as hyd rollers are getting a lot better.

 

Sure you can do it.. all you need is $ .

 

that guy with the LT1 in his RX7 made 640 at the flywheel, with AFR LT4 units, sheetmetal intake, and pump gas.

 

So basically we will rephrase the question to, "Is 500/600rwhp possible on a smallblock chevy engine?, and then put it in a 4th gen FBody?"