I AM WANTING TO BUILD A CHEVY 302(ACTUALLY 310 .060 OVER) I HAVE ALL THE PARTS FORGED CRANK,RODS,SMALL JOURNAL 327 BLOCK, BUT THE PROBLEMS I AM HAVING IS FINDING THE CORRECT PISTONS I NEED PISTONS WITH 1.801 COMPRESSION HEIGHT BUT THE ONLY ONES I SEEM TO FIND IS 1.561 IM WANTING ABOUT 11.0:1 COMPRESSION ILL BE USING ALUMINUM HEADS. ANY HELP WOULD BE GREATLY APPRECIATED , I AM WANTING TO BUILD A CHEVY 302(ACTUALLY 310 .060 OVER) I HAVE ALL THE PARTS FORGED CRANK,RODS,SMALL JOURNAL 327 BLOCK, BUT THE PROBLEMS I AM HAVING IS FINDING THE CORRECT PISTONS I NEED PISTONS WITH 1.801 COMPRESSION HEIGHT BUT THE ONLY ONES I SEEM TO FIND IS 1.561 IM WANTING ABOUT 11.0:1 COMPRESSION ILL BE USING ALUMINUM HEADS. ANY HELP WOULD BE GREATLY APPRECIATED ,

 

You can order them from a Speed pro/ Sealed power dealer.
It will be "special order"
You won't find them advertized or on special much because of the low demand. Unless you are restoring a Z28 or just have to have a 302, A 350 or 327 will rev just as high and go faster.
The custom racing piston companies can /do make then for ya.
but probabily on a per order basis. (Ross JE Weisco).

 

REAOSN IM WANTING A 302 IS BECAUSE NOBODY HAS 1 ANDIVE ALWAYS LIKE TO BE UNIQUE AND I KNOW THE POTENTIAL OF THOSE LITTLE ENGINES I HAVE BEEN RESEARCHING THIS FOR AWHILE BUT CANT FIND ANYTHING ON THE PISTONS AND PLUS I LIKE THE WAY THEY REV , DONT GET ME WRONG I LOVE 327'S ALSO IVE OWNED A FEW OF THEM BUT WANTED TO TRY SOMETHING NEW AND THIS IS IT. IM LOOKING TO HAVE BETWEEN 500 - 550 HP IM THINKING THAT WILL MAKE MY LITTLE 89 FIREBIRD MOVE QUITE NICE IM HOPING FOR LOW 11'S HIGH 10'S IF NOT FASTER ILL BE USING 4.10 GEARS 2500 STALL 275/50/15'S ON BACK AND 225/60/15'S ON FRONT AND PLUS IM PLANNING ON GIVING IT A DIET HOPING TO GET IT DOWN TO ABOUT 3000 POUNDS WITHOUT DRIVER I THINK IHAVE A PRETTY GOOD LAID OUT PLAN. THANX FOR THE IMFO.
THOMAS

 

There are a few flaws in your plan.
You can build a 500/550 hp 302 (at high cost )
thats for sure. But she'll be a high winder...
A buddy of mine has a real 302 in his 60 vette.
This thing boogies. 10's. He launches the thing at 11,000 rpm.
and shifts at 12,000 rpm. This is typical of a 550 hp 302.
A 2500 stall converter and 4.10 gears are going to come up a
littl short.
Try a 7000+ rpm custom built converter and a set of 6.14 gears.
A lenco 5 speed. would be a lot better. How good are you at shifting a 5 speed?
Small high winding high horsepower motors make peak horsepower at very high rpm. They have a narrow power band.
Narrow power band motors need lots of rpm and lots of gears.
Like a 5 speed transmission.

They have no low end torque and very bad street manners.

That's Phisics so you'll have to "gear and converter" the car to
make use of the 302's power band or you won't accelerate very fast. Easier to work with Physics than work against it.
Costs less too.
Even a old Z28 302 in a 69 Camaro needed a real stiff gear to launch the car.
Most guys used 4.88 to 5.38 gears in their 69 Camaro's, at the drags.
Take anything away from what a lil 302 needs to boogie
and a 350/383/400 will eat ya for breakfest. At lower cost.
that is why no one has them.

Good Luck to ya anyways...

 

C&A and lunati come to mind for piston makers and any good maker could make you a special order set. you'll make more power out of a 350 with the same parts in it as you would a 302.