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
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 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
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
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
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.
|
