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Ross Racing Pistons Big Block Chevy Pistons

ROSS Racing Pistons are used in high performance and racing engines by knowledgeable engine builders the world over. They combine light weight, high strength, precision machining and premium materials to build a piston you can depend on for high horsepower, torque and reliability. We offer these superb pistons at very affordable prices.

Ross Racing Pistons Big Block Chevy Pistons

Ross Racing Pistons offers pistons in both stocking and custom sets. In most cases you can find a stocking set to fit your needs. If you do not see the exact piston specs you want in a stocking piston, we will be happy to help you with a custom piston design. Custom pistons can be made for just about any type of engine. Please e-mail us and we will be happy to assist you with a custom piston order. We offer discounted pricing, even on custom pistons so please contact us for assistance with your custom piston needs and we will be happy to help you and give you a great price quote.

ROSS includes forced pin oilers and double spirolox on all of their stocking pistons. Pistons are balanced to plus or minus 2.5 grams throughout the set. You can buy replacement pistons one at a time as needed. The valve pockets are designed to handle most camshaft applications. The skirt design allows the pistons to work properly under intense heat and tremendous side loads without scuffing or splitting cylinder walls. Most normally aspirated pistons are designed to operate at .004 piston skirt to cylinder wall clearance. All ROSS stocking pistons include aircraft quality pins that are heat treated and end ground to work in full floated or press fit applications.

Please feel free to use our compression ratio calculator to help you decide on the piston specifications you want.

Please click here for Ross 409 Chevy Pistons and 409 Stroker Pistons

454 and Stroker Flat Top Pistons Open and Closed Chamber

Ross Big Block Chevy 454 Forged Pistons Image

ROSS flat top Big Block pistons listed in this section feature special flat top forgings for maximum strength with minimum weight. Will work with open or closed chamber heads. Suitable for nitrous systems of 250 horsepower or less. Ideal for street and marine applications. Pins included are .990 diameter, 2.930 length, .150 wall, 149 gram weight, aircraft quality, and are retained by double spirolox or can be press fitted into rods. Pin location (compression height) used on this piston will give .017 deck clearance in new (9.800 tall) block. Ring grooves are 1/16, 1/16, 3/16. Compression ratio shown in chart based on a head chamber volume of 118 cc.

NOT FOR USE WITH FORCED INDUCTION SYSTEMS.

Please click on the part number in the list below for pricing or to order.

Pistons Listing

Part #

Bore

Stroke

Rod Length

Dome CC

Comp

Grams

C.H.

ros 83066

4.280

4.000

6.135

-3

8.5

603

1.648

ros 86066

4.310

4.000

6.135

-3

8.6

611

1.648

ros 85066

4.500

4.000

6.135

-3

9.2

643

1.648

9-1 Compression Open Chamber

ROSS 9 to 1 compression ratio Big Block pistons in this section feature special forgings for maximum strength. Will work with open chamber heads. Suitable for nitrous systems of 300 horsepower or less. Pins included are .990 diameter, 2.930 length, .150 wall, 149 gram weight, aircraft quality, and are retained by double spirolox or can be press fitted into rods. Compression ratio is based on 118 cc heads and .050 piston to head clearance (deck and gasket combined). Ring grooves are 1/16, 1/16, 3/16.

NOT RECOMMENDED FOR USE WITH FORCED INDUCTION SYSTEMS.

Pistons Listing

Part #

Bore

Stroke

Rod Length

Dome CC

Grams

C.H.

ross 83069

4.280

4.000

6.135

22

688

1.648

ross 88767

4.310

4.000

6.135

22

699

1.648

Moderate Compression Open Chamber

Big Block Chevy Ross Forged Pistons Moderate Compression

ROSS moderate compression ratio Big Block pistons in this section feature special hollow dome forgings for maximum strength with minimum weight. Will work with open chamber heads. Suitable for nitrous systems of 250 horsepower or less. Pins included are .990 diameter, 2.930 length, .150 wall, 149 gram weight, aircraft quality, and are retained by double spirolox or can be press fitted into rods. Compression ratio is based on 118 cc heads and .050 piston to head clearance (deck and gasket combined). Ring grooves are 1/16, 1/16, 3/16.

NOT RECOMMENDED FOR USE WITH FORCED INDUCTION SYSTEMS.

Please click on the part number in the list below for pricing or to order.

Pistons Listing

Part #

Bore

Stroke

Rod Length

Dome CC

Comp

Dome Height

Grams

C.H.

ros 83762 4.280 3.760 6.135 51.0 11.7 .700 648 1.768
ros 83064 4.280 4.000 6.135 36.0 10.7 .700 615 1.648
ros 83063 4.280 .280 4.000 6.135 41 11.2 .500 607 1.648
ros 86762 4.310 3.760 6.135 51.0 11.9 .700 661 1.768
ros 86064 4.310 4.000 6.135 36.0 10.8 .700 625 1.648
ros 86063 4.310 4.000 6.135 41 11.4 <.500 603 1.648
ros 99556 4.320 4.000 6.135 36.0 10.8 .700 628 1.648
ros 99557 4.350 4.000 6.135 36.0 11.0 .700 630 1.648
ros 88764 4.375 3.760 6.135 36.0 10.5 .700 685 1.768
ros 88064 4.375 4.000 6.135 36.0 11.1 .700 661 1.648

High Compression Open Chamber

High Compression Big Block Chevy Dome Top Ross Forged Pistons

ROSS 13-1 compression ratio big block pistons listed in this section feature special hollow dome forgings for maximum strength with minimum weight. Will work with open chamber heads. Suitable for nitrous systems of 250 horsepower or less. Pins included are .990 diameter, 2.930 length, .150 wall, 149 gram weight, aircraft quality and are retained by double spiro lox or can be press fitted into rods. Compression ratio is based on 118cc heads and .050 piston to head clearance (deck and gasket combined). Ring grooves are 1/16, 1/16, 3/16

NOT FOR USE WITH FORCED INDUCTION SYSTEMS.

Please click on the part number in the list below for pricing or to order.

Pistons Listing

Part #

Notes

Bore

Stroke

Rod Length

Dome CC

Comp

Dome Height

Grams

C.H.

ros 83062

4.280

4.000

6.135

51

13.0

0.700

621

1.648

ros 83032

4.280

4.000

6.385

51

13.0

0.700

595

1.398

ros 99549

*

4.280

4.000

6.535

51

13.0

0.700

561

1.245

ros 83462

4.280

4.250

6.135

51

13.7

0.700

593

1.523

ros 83432

*

4.280

4.250

6.385

51

13.7

0.700

566

1.273

ros 99546

*

4.280

4.250

6.535

51

13.7

0.700

529

1.120

ros 80001

4.310

4.000

6.135

51

13.1

0.700

657

1.635

ros 86062

4.310

4.000

6.135

51

13.1

0.700

653

1.648

ros 86032

4.310

4.000

6.385

51

13.1

0.600

602

1.398

ros 99550

*

4.310

4.000

6.535

51

13.1

0.700

529

1.245

ros 86462

4.310

4.250

6.135

50

13.7

0.700

650

1.523

ros 99510

*

4.310

4.250

6.385

50

13.7

0.640

565

1.273

ros 86432

*

4.310

4.250

6.385

51

13.9

0.700

564

1.273

ros 99547

*

4.310

4.250

6.535

51

13.9

0.700

574

1.120

ros 99554

4.320

3.760

6.135

51

12.4

0.700

656

1.768

ros 99551

*

4.320

4.000

6.535

51

13.2

0.700

536

1.245

ros 99548

*

4.320

4.250

6.535

51

13.9

0.700

513

1.120

ros 99555

4.350

3.760

6.135

51

12.6

0.700

674

1.768

ros 87062

4.350

4.000

6.135

51

13.3

0.700

656

1.648

ros 87432

4.350

4.000

6.385

51

13.3

0.700

593

1.398

ros 99552

*

4.350

4.000

6.535

51

13.3

0.700

544

1.245

ros 99509

*

4.350

4.250

6.385

51

14.1

0.700

602

1.273

ros 99553

*

4.350

4.250

6.535

51

14.1

0.700

545

1.120

ros 99611

4.375

4.000

6.135

51

13.4

0.700

630

1.648

ros 88062

4.375

4.000

6.135

51

13.4

0.700

639

1.648

ros 88032

4.375

4.000

6.385

51

13.4

0.700

621

1.398

ros 99623

4.375

4.000

6.385

51

13.4

0.700

604

1.398

ros 99622

4.375

4.250

6.135

49

13.9

0.600

622

1.523

ros 88432

*

4.375

4.250

6.385

49

13.9

0.600

568

1.273

ros 99624

*

4.375

4.250

6.385

49

13.9

0.600

564

1.273

ros 85062

4.500

4.000

6.135

51

14.0

0.700

656

1.648

ros 85032

4.500

4.000

6.385

51

14.0

0.700

627

1.398

ros 85462

4.500

4.250

6.135

49

14.5

0.600

717

1.523

ros 99512

*

4.500

4.250

6.385

45

13.9

0.500

558

1.273

ros 85432

*

4.500

4.250

6.385

49

14.5

0.600

580

1.273

ros 82014

4.530

4.000

6.135

51

14.2

0.700

670

1.648

ros 82015

4.530

4.000

6.385

46.5

13.5

0.700

642

1.398

ros 99513

*

4.530

4.250

6.385

45

14.0

0.500

560

1.273

ros 88766

4.560

4.000

6.385

49

14.0

0.700

631

1.398

ros 99776

4.560

4.000

6.535

45

13.4

0.500

594

1.245

ros 99514 * 4.560 4.250 6.385 45.0 14.2 0.500 572 1.273

ros 88765

*

4.560

4.250

6.385

49

14.8

0.600

696

1.273

ros 99775

*

4.560

4.250

6.535

40.5

13.5

0.500

552

1.120

ros 99778

4.600

4.000

6.535

45

13.6

0.500

607

1.245

ros 99777

4.600

4.250

6.535

45

14.4

0.500

580

1.120

ros 99779

4.625

4.000

6.535

45

13.7

0.500

618

1.245

ros 99781

4.625

4.250

6.535

45

14.5

0.500

592

1.120

The * in the note field indicates that oil ring support rails are included with that set of pistons.

High Compression Closed Chamber

Big Block Chevy Closed Chamber Pistons

ROSS high compression ratio Big Block pistons in this section feature special hollow dome forgings for maximum strength with minimum weight. Will work with closed chamber heads. Designed for intake valves up to 2.300" diameter and exhaust valves up to 2.050" diameter. Suitable for nitrous systems of 250 horsepower or less. Pins included are .990 diameter, 2.930 length, .150 wall, 149 gram weight, aircraft quality, and are retained by double spirolox or can be press fitted into rods. Compression ratio is based on 106 cc heads and .050 piston to head clearance (deck and gasket combined). Ring grooves are 1/16, 1/16, 3/16.

NOT RECOMMENDED FOR USE WITH FORCED INDUCTION SYSTEMS.

Please click on the part number in the list below for pricing or to order.

Pistons Listing

Part #

Bore

Stroke

Rod
Length

Dome
CC

Comp

Dome
Height

Grams

C.H.

ros 83764

4.280

3.760

6.135

36

11.8

0.700

637

1.768

ros 83064

4.280

4.000

6.135

36

12.5

0.700

607

1.648

ros 82011

4.280

4.000

6.385

36

12.5

0.700

563

1.398

ros 86764

4.310

3.760

6.135

36

12.0

0.700

644

1.768

ros 86064

4.310

4.000

6.135

36

12.7

0.700

605

1.648

ros 82012

4.310

4.000

6.385

36

12.7

0.700

559

1.398

ros 99556

4.320

4.000

6.135

36

12.7

0.700

613

1.648

ros 99557

4.350

4.000

6.135

36

12.9

0.700

618

1.648

ros 88764

4.375

3.760

6.135

36

12.3

0.700

673

1.768

ros 88064

4.375

4.000

6.135

36

13.0

0.700

646

1.648

Open and Closed Chamber for use with Blowers and Turbochargers

ROSS pistons listed in this section were designed for blown and turbocharged engines, and have thicker ring lands, more massive pin bosses and larger internal radii to withstand the additional cylinder pressure that forced induction engines put out. Ideal for street and marine applications, as well as drag racing. Big Block Chevrolet pins are .990 diameter, 2.930 length, .150 wall and weigh 149 grams. All pins supplied are aircraft quality are are retained by double spirolox, or can be press fitted into rods. In extremely high horsepower applications, ROSS tapered bore pins BBC part # 990-04-29, are recommended. Lower compression ratio is achieved by utilizing more deck clearance then normal (flat top "down in the hole").

Please click on the part number in the list below for pricing or to order.

Pistons Listing

Part #

Note

Bore

Stroke

Rod
Length

C.R.

Grams

C.H.

Pin Dia.

Rings

ross 83068

4.280

4.000

6.135

8

620

1.614

0.990

"5/64,5/64,3/16"

ross 82016

*

4.280

4.000

6.385

8

565

1.365

0.990

"5/64,5/64,3/16"

ross 86068

4.310

4.000

6.135

8

638

1.609

0.990

"5/64,5/64,3/16"

ross 82017

*

4.310

4.000

6.385

8

580

1.365

0.990

"5/64,5/64,3/16"

ross 85065

4.500

4.000

6.135

8.5

685

1.648

0.990

"5/64,5/64,3/16"

ross 85365

4.500

4.000

6.385

8.5

655

1.398

0.990

"1/16,1/16,3/16"

* in the note field means that this piston set includes oil ring support rails.