ok, im buildin a 88 with a 383 and trin to get 450hp to tha wheels...1st i wanna know how this kinda power acts in tha street. does it have good street manners.....if u go WOT and hook will it pin u to ur seat and not let u move.......i just need some opinions from people drivin around with these kinda numbers.....thanx

 

383 with a "trin"? What is that?

 

450HP at the wheels out of a 383" SBC through an auto trans with proper converter (assuming auto) would make that a very healthy engine, which likely would not behave well on the street. Engine specs? No offense, but if you can't type a coherent post on the internet, building a 450rwhp SBC is a dream...

450rwhp is very livable, as I can drive my TA just about anywhere - and do, even in the rain and light snow. On standard street tires, traction begins at 80MPH, anything less and I'm sideways. Drag radials are a must for WOT acceleration in a straight line. All my passengers say that WOT pushes them back in the seat pretty hard, but I don't notice it at all

 

450 out of an LS1 is pretty easy and even easier with the tuneability. Hopefully he will chime in so we know if it's SBC or LTx, carb, TPI, MPFI and also if the "trin" means "t-trim" meaning supercharger. If it does then 450 to the wheels should be very doable and live fine on the street.

 

By "trin" do you mean "trying"? As in "Im trying to make 450 hp?"

 

Oh, that fits, good call. In that case, search for 450rwhp N/A and there are a million threads about it cause everyone wants to do it.

 

im trying to get 450hp to tha wheels sorry about that and i wanna drive it every day on tha street its a work in progress its a gen 1 block carbed......

 

Unless its supercharged or turbocharged, that won't happen. That's just too much power for a naturally aspirated, daily driven, pump gas SBC. You can make the power, no doubt, but you'll need to run a big cam even with really good heads. Then you'll have vacuum problems, stalling/surging/idle problems, cooling issues, and the fuel mileage will be horrible! If you were to put down around 400rwhp with a daily driven 383 SBC, most would be very impressed!

 

i dont get it i see ls1's do it often.....n/a motors putting 450hp down to tha wheels...........whats tha difference?

 

There are so many differences between a gen I SBC and an LS1 that trying to compare the two just isn't reasonable...

For Starters, the LS1 stock had over 300 hp at the tires...

Better intake
Better heads
Better fuel system
Better ability for tuning and powertrain management

The list goes on...

I'm not trying to knock the SBC any more than I would my own LT1, but the LS1 is just a better platform to start with....

 

Nearly 50 years of technological advancement! The SBC design originated back in the late 40s early 50s, while the LS1 was developed in the early 90s. Both were designed to do basically the same thing: produce more power, run smoother and more efficiently, and do it cheaper than its predecessor.

Don't get me wrong. You certainly can make 450rwhp from a 383 SBC. But it will not be daily driver friendly, even with loose standards as some have. Theoretically, a 10.5:1 383 using AFRs new 195cc Eliminator heads, a Performer RPM intake and 750cfm quality carb could make the power on a mid 230ish duration cam, could make really close to your goal, but fuel mileage will still suffer. Top of the line heads are A MUST! You'll never see good power and driveability with any of the lesser old school stuff.

I will not go into the differences between the SBC and the LS1, as there is TONS of information out there already, and we certainly don't need another thread like that here Do a search if you're really that interested.

 

any close guess of gas milage ........6-7 miles to tha gallon.....anyways im just lookin to build a fast camaro using what i have on hand.....a 350 block......i want it to be able to do low 11s on spray.........and have tha fastest ride at school(yes im still in high school)

 

You certainly won't need 450rwhp naturally aspirated horsepower if you're spraying to run low 11s. If you're running nitrous, say a 150 shot, 350rwhp NA from that 383 would be plenty.

350rwhp from a daily driven 383 should be downright easy. There are dozens of budget minded 450HP+ (crank HP rating) 383 buildups that will put you where you want to be. And in good tune with a reasonable gear, even a fuel thirsty Holley or Demon carb should be able to see 15MPG highway no problem.

And I totally understand the want to have the fastest car in high school! That's why I bought my Z28 and built it up. Back then my high 12 second car was king of the hill. Shame you have to run low 11s to be the quickest in your high school

 

based on that comment I would say you wont have to worry about the gas mileage all that much because if you are just looking to build the fastest car in school chances are you are in it for the fame and not the fun and will crash in less than a month being stupid. Just my $.02. If you are still going to do it, which you probably are, I am sure there are plenty of "11 second" cars in your school that probably run in the 13's realisticly, so build yourself a light car with good suspention and an engine with everything working together to give you a Lastly get somone with more experience to help you, because judging by your post you don't know much about building an engine. Most of all be safe!!

 

450 rwhp in a streetable Gen 1 SBC is more than doable. Jeg's and Summit both have crate engines in their catalogs that will best that on pump gas. There are a ton of companies on the net that offer these types of engines as well. I would go as far to say that it would cost less to build a 450 rwhp Gen1 SBC than it would to build a 450rwhp LSX engine. This same kind of technological advancement has also been applied to aftermarket Gen 1 products as well.
If all you want is to have an 11 second car then you don't need 450 rwhp to do it. Start reading around and visiting the 3rd gen section and you'll get all the info you need to accomplish your goals.