Ok.. So after getting screwed by an internet company under my latest idea (building a 408ls w l92 heads) i've gotten kinda burned out. Also the aftermarket isn't quite that big yet for them. Especially the L92 heads. So i figured i'd ask some of you guys for you opinion. Its helped me out in the past so why not?? #1. I alread have a 383 in my camaro. So install a forged crank ,pistons and rods to handle the D1sc and call it good. Its already a low milage motor but i've had problems with my p600b breaking cranks. D1sc is about 4000.00 and freshin up with forged stuff and cometic head gaskets 2000.00. So thats all togetherWill eventually need a 749pcm or stand alone in the future.$6000.00. #2. Already have a lq4 shortblock in the machine shop. Ill have to buy another stroker kit(damn dyno-flo) 2500.00 l92heads 1200.00 cam and such 800.00. and pcm with ls1 edit..approx 600.00 than those expensive headers 800.00 and accessorys 800.00. I already have the wiring harness and intake.The total there is approx 6700.00. So basically.. 383 pushing 550+rwhp and all parts are very easy to get. Or lq4 (new school) pushing 450+rwhp and more $$$.I'm really not on a super tight budget. Just want opinions. so...HELP!

I tend to lean towards N/A power (maybe just a bit dumb).. but my next project is a 427+ cube LSx based motor, so I am certainly biased..

Most folks on the LS1tech side of the world would be upset if they couldn't push 500rwhp on a 408.. that seems about the norm these days, some folks are pushing stock cube LS2s to almost 500rwhp also.. Support is coming up for those heads also, jesel shaft mounts can be had now also..

So one opinion for all aluminum, larger cube, LSx power.. You really can't lose either way..

What happened w/ dyno-flo?

A D1SC will make abit over 600whp on the 383 if done right. I'd go that way personally. I plan to do the same with my 383 later down the road when i'm tired of the n/a power

Yea..Thats what I was thinking as well. seems a lil easier and parts for a SBC are every where. But it still would be pretty cool to have a Ls stroker. As far as dynoflo goes..Headachs! Just dealing with my creditcard company now. They said couple more weeks... But tell me what you guys think! What would you do? Thanks!

L92 heads are good heads, and with the proper cam, that 408 will make great power. But not as much as the blown 383. Its all in what you want

iron block 6.0L base wont give you any weight savings over the 383 sbc. AN aluminum lsx would be worth the swap i think but not iron

LSx stuff is cool, but i think the blown sbc stuff is just as cool if not cooler. Nothing like that blower sound either.

You cant beat a blower setup for power everywhere. If you were building a 406 sbc vs a 408 LSX, i'd go lsx all the way. But blown small block is better than n/a lsx when it comes to power and streetability

get the 408LS motor, slap on a procharger f1/f1-R and send me a thank you check when you feel that power

Do the LSx swap now, and then boost it later when your budget permits.

If you really want old school with FI, do a turbo Buick V6! I've seen a few fast ones on this site...

LOL..That'd be insane! Maybe i just will

problem with that is, you'l have to build a fairly low compression 408 and set it up with a cam for boost now, which will mean alot less power/fun on the street in n/a form for the time being. maybe you can live with that, i'm not sure how long it will take you to go from 408 to boosted 408

Car craft & Hot Rod both had their own seperate fun with a 6.0/ L92 combo... Maybe that's where your inspiration came from? I don't have the issues right in front of me & am too lazy to find 'em at the moment but I think Car Craft made 480HP with the stock heads & then 560 or 70 something with the L92s. Maybe that was Hot Rod's L92 number... But then Hot Rod made something around 750 with their blown 6.0/L92 combo. I don't remember if either of them stroked their's...

I don't know if that helps your decision any... I don't know which way I eould go either. But I bet you can put an LS motor together for less than you quoted if you search around enough..
Another note: you may get a better idle quality & driveability out of the LS at the same power levels if that matters any to you. & I guess you're planning on being fuel injected & unless you're going with some megabuck aftermarket system on the gen 1 I'd say the LS injection system would be a lot better off.