Thread: Sbc Power!!!

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Its been my dream to get the front end off the ground in my 78 nova.. im building a 383 stroker motor.. what are some good tips to help me achieve this goal...How much power is enough to achieve this with the right setup?

Thanks Justin

First off we need to know some more info on what parts you have on the 383 right now and what tranny you are using and any/all the other info as well. To lift the wheels off the ground takes a lot of power and the right set up for traction. Power doesn't mean nothing if you can't hook the tires to the ground... Good luck!

you could lift the tires, you need traction and lots of power, 4.11 gears will do it best. The Nova will need at least traction bars if it has rear leafs. You are going to have lots of things happen if you get the tires off the ground, being you need so much torque, that torque travles through the driveshaft and some of it is exzerted on the rear end and actully twist's the rear end up, and in affect also the entire body, what might happen is your gonna try to get your tires up, they do/ don't whatever but you get positive hookup, you could essentially crack the windshield from the flex. you will need frame stiffeners or a cage so it don't flex like that.

yes, i have that dream too. I want to do it with my 72 el camino though...I think it might be a little bit harder because the wheel base is longer....

The 383 motor has kb .100 dome pistons .060 over and h beam rods.. moly rings.. cam is undecided yet i want to go with a solid roller.. thats what the heads are set up for.. the heads are aluminum bowtie 049 heads with 55 cc chambers and 2.08 1.60 ferrea valves.. pretty ported out.. workin on polishing them.. ive been thinking about goin with the bowtie intake to match the .200 raised runners on the heads.. i have a 150 NOS kit but im not sure the silvolite pistons will take it for long.. i have hooker super comp headers and carb im waiting on also.. it should be pretty free flowing and being a 383 it hopefully will be able to pull some R's... My last pretty stock 383 pulled 6700 i was pretty impressed for what it was.. Im thinkin about tubbing my car and putting a 4 link in with a 6 point or bigger cage.. i think this will make it launch hard and straight compared to the unibody.. my trans in a th350 which i built myself and just put a kit in it and clutches.. took out a few springs to make it shift better and put on a stall.. well thats all i can think of for now.. thanks for showing interest..

Stroker_383

Originally posted by Stroke_this383
The 383 motor has kb .100 dome pistons .060 over and h beam rods.. moly rings.. cam is undecided yet i want to go with a solid roller.. thats what the heads are set up for.. the heads are aluminum bowtie 049 heads with 55 cc chambers and 2.08 1.60 ferrea valves.. pretty ported out.. workin on polishing them.. ive been thinking about goin with the bowtie intake to match the .200 raised runners on the heads.. i have a 150 NOS kit but im not sure the silvolite pistons will take it for long.. i have hooker super comp headers and carb im waiting on also.. it should be pretty free flowing and being a 383 it hopefully will be able to pull some R's... My last pretty stock 383 pulled 6700 i was pretty impressed for what it was.. Im thinkin about tubbing my car and putting a 4 link in with a 6 point or bigger cage.. i think this will make it launch hard and straight compared to the unibody.. my trans in a th350 which i built myself and just put a kit in it and clutches.. took out a few springs to make it shift better and put on a stall.. well thats all i can think of for now.. thanks for showing interest..

Stroker_383

You will need a lot of torque,gear,a much looser stall,and a trans brake.A tubbed car will make it easier.

Lots of weight in the trunk!

how much was that kit for your tranny???

Well.... Only thing I can say is I see you said NOS? Well anyway's, I wouldn't run that junk in a 383. If anything go with a supercharger/blower instead. Me myself I like naturally aspirated and if not then blown but that's about it. That nitrous stuff just costs too much money to keep the motor lasing and your motor wont last as long. That's my oppinion at least but I have never used nitrous, I just hear your motor wont last as long with it even if you have pistons and rods FOR nitrous.

The trans kit was some stuff i had laying around and if you have some access to a machine shop you just mill down you pistons in your trans to put more clutch discs in along with steels.. otherwise for a decent motor just get a shift kit which is under 50 bucks for a decent one..

Stroker

B&M is a decent shift kit. Don't need some top dollar one. Pretty much like my local tranny guy said, they are pretty much all alike besides some are for towing, others for strip...

I don't think I would want a shift kit for anything I'm gonna drive daily unless it served a purpose for towing or such.

They have shift kits for towing and then ones for strip and street. They don't shift much harder. Plus they say that a shift kit makes firm shifts which in turn makes the tranny last longer. Now that part I don't know if it's true, I heard it on Trucks, Horsepower TV, etc. A shift kit doesn't shift real hard or nothing, just a nice firm shift, I like em.

Originally posted by FMXhellraiser
They have shift kits for towing and then ones for strip and street. They don't shift much harder. Plus they say that a shift kit makes firm shifts which in turn makes the tranny last longer. Now that part I don't know if it's true, I heard it on Trucks, Horsepower TV, etc. A shift kit doesn't shift real hard or nothing, just a nice firm shift, I like em.

there are some shift kits that make better shifts and there not bad, but then theres the shift kits that are out and out hard shifting, and in turn neck snappers. If the clutches are snapping closed fast, I would assume that would be kind of hard on there physical stability, but not on the friction material, where as if there slipping a little, the friction material would wear out faster but there physical strength would stay ok.

Not sure... I never seen a shift kit that was neck snapping. That is what I wanted on my 66, I asked the guy to get me one that shifts hard and it does ok but not what I expected... My 85 has a shift kit in it and shifts a tad firmer from 1st to second but that's it....