Homeless2bNY

iTrader: (2)

.

hi everyone.

i see a lot of 383,408 and 427 stroker kits out there.

which is all well and good. but i want to go the other way and take it down to a 302 the likes tp spin fast. 8-9k rpm.

i saw one biuld in a mag like 7-8yrs ago and it made like 425hp. the idea always sounded good. and if i have to redo my LS1 thats what i wanna do.

if anyone knows of a kit that will do this, i thank you now.

Chrome355z

iTrader: (1)

You see the stroker kits out there becasue there is no replacement for displacement.

Build that 302 and you'll spend 10-15k easy with the valvetrain needed to spin 8-9k and you will get your *** handed to you by a 427 stroker built for half the cost.

People have brought this up in the past if you are willing to search. Dead issue unless you HAVE to stick with a certain CI for some class rules.

transamfreak01

iTrader: (8)

no way.. i would not go less cubes. why do u want to spin the motor high? you can have a ls1 w/e mild heads and cam put out mroe than 425hp. i say if u have the ls1 already and u want to change cubes then go 383 but the sotck cubes will be fine

04qsm-m6

iTrader: (4)

Me and my Dad have a 302 sbc in a 64 elcamino. Revs to beat hell lots of fun, but you have to have tall gears, dog down low till about 4000 then look out all hell breaks loose, but yeah to much money to spend with a lsx motor as said above....

Homeless2bNY

iTrader: (2)

ohh wow. very negative and set minded thinkers...but you are right about "no replacement"
just wanted to see if anyone knew of a kit off hand or what it took?

cause my therey was to fallow history.

cause all i need is "maybe" the crank out of a 4.8 truck and rods from a 6.0.
thats what they did the first time around so why cannt i do it again? just piece **** together and make it work. research is all i need to do right now.

And i really dont think it will cost me 10-15k(even though i'm willing to spend it) to biuld that motor.

i want it to rev and be a 302 cause thats kool to me. a little diferant too.
it not going to be a drag car.


so come on positive thinkers, wanna help me out or what? lol

jetlag

iTrader: (32)

SAM is spinning a 433ci to 9600rpms...

deelong4002

iTrader: (8)

buy a mustang???

But in all seriousness, why not build an LS1 to spin high r's. Just as possible. But you seem set in your plan, so have fun i guess. I'm not one to stiffle someones plans.

mike#9

iTrader: (3)

Not negative or close minded thinkers.....just realistic. And nobody is saying that it is impossible, just senseless unless you have to run smaller cubes as mentioned before.

And not to be an ***......but use spell check. LOL

kinglt-1

iTrader: (26)

Yep and alot of it.

ttranssam

iTrader: (10)

there were a few threads on this a while ago....like ls1 de-stroking and ****, and like said above yea...sure it can work but on a ls1 theres no advantage unless its a class thing, to go smaller and spin higher would be kind of pointless cus you can do the same to a stock cube ls1. i get what your saying about the bein different. but it will most likly feel like a turd

MelScrilla

iTrader: (2)

instead of destroking a 5.7 why not just buy a 5.3 or a 4.8 to start with and upgrade that. But like many said I would just upgrade a LS1 to do what you want instead of spending money to destroke it. That way you'll get the RPM's and the advantage of the cubes.

Homeless2bNY

iTrader: (2)

ok i know i no spel to good. but so what you know what i ment, so i dont bother with the checker.
Lol lets have fun here.

so IF my main goal was to get more revs out of my car, what would i need?

ttranssam

iTrader: (10)

donet yu hate when pople correct speling as if we were in school...but id say jesel rockers with morel lifters a afr rev kit and a balanced and built ls1...any ci and a patric g cam....i have a buddy with a ms4 cam thats spining that ****** to 7k

ttranssam

iTrader: (10)

ive always wanted to build a badass blown 4.8 just to geat the **** out of any 4.6 guy....show them up with our little ls guy

MelScrilla

iTrader: (2)

short version: a hellified valve train and rod bolts.

Long version: A solid roller cam is what you really need to turn lots of revs because it seems like at a certain point a hydraulic roller cam will float valves. I would also look into the best springs and light valves. Also some ARP rod bolts and consider upgrading to the L19's. Next I would suggest going with taller gears in the rear like a 4:10 in a auto or 4:30's in a M6. The gear will keep you up in the RPM's.

Next I would upgrade the intake because i dont even think a LS1 intake can breath enough once you get to 8k. A fast might not even be enough. A vic jr intake would probably support the rpms better than anything but a sheet metal intake. You will probably lose some low end power but if you looking to make rpm's I guess that wouldn't be much of a problem.

GMRL

If you take an LS1 with a bore of 3.905 and the crank from a 4.8 which is 3.26"
you get 312 inches.
If you take a 6.0 with a bore of 4.03 and the crank from a 4.8, you get 332 inches.

So you would need a 6.0 block with a crankshaft that has a stroke of 3.0" to make a 302.
I have no idea if anybody makes one in that size.

68Hybrid

I think this is a sweet idea

this motor idea would be awesome in a small classic car goin with a modern feel. Kinda european almost. A mustang buddy of mine is plannin on the same route-- he's hoping to build a 289 or 260 with stupid high compression and an rpm range that might touch 5 digits. far cry from the stroked windsor powering his car meow...

bitchin idea--run with it

Nimitz87

iTrader: (17)

oiling for those kind of high RPM motors are NOT cheap.

look to spend big money on a dry sump setup.

Chad

Chris@Straightline

iTrader: (1)

also, the factory doesnt work too well above 7800 so factor in a stand alone computer

Nimitz87

iTrader: (17)

ah yes forgot that.

so your looking at alot of big $$$$$$$$$$$ for something that isn't ideal...for the "different" factor.

also add in a sheet metal intake at that high of rpm.

so

intake (3,000ish)
BS3 (2,500)
Dry sump ( 2000ish)

that's not including the big money valve train, bottom end, etc.

Chad