Ross Racing Pistons Forged Flat Top
Pistons for Small Block Chevy 17 18 22 23 Degree Heads
ROSS includes forced pin oilers and double spirolox on
all of our 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. Our valve pockets are
designed to handle most camshaft applications. Our 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.
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.
Please feel free to use
our compression ratio calculator to help you decide on the piston specifications you want.
Click here to go
direct to our Compression Ratio Calculator or visit our Race Math Page.
Click
on the part number in the list below for the item you are interested in for more
information, pricing, or to order. You may also click the home button in the top right
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Ross SBC Flat top Pistons for 17 or 18
degree heads, will also work with 22 and 23 degree heads

ROSS flat top
pistons manufactured on our XL forgings feature design with light weight and can be used
with nitrous systems up to 250 horsepower.
Designed for Dart,
Brodix, or Chevrolet "Bow-Tie" 17 or 18 degree heads. Will work with 22 or 23
degree heads, however valve pockets will be extra deep which will work with very high lift
cams at a slight sacrifice in compression. Pins included are .927 diameter, 2.950 length,
.150 wall, 142 gram weight. Ring grooves are 1/16, 1/16, 3/16.
NOT RECOMMENDED FOR USE
WITH FORCED INDUCTION SYSTEMS.
* Price includes oiil
ring support rails
17 and 18 degree flat top Piston Listing (will work with 22 & 23 deg. also) |
Part # |
Notes |
Bore |
Stroke |
Rod Length |
Dome CC |
Grams |
C.H. |
99525 |
|
4.040 |
3.750 |
5.700 |
FT |
479 |
1.420 |
99464 |
* |
4.125 |
3.750 |
6.000 |
FT |
439 |
1.125 |
99465 |
* |
4.125 |
3.875 |
6.000 |
FT |
422 |
1.062 |
99466 |
* |
4.125 |
4.000 |
6.000 |
FT |
412 |
1.000 |
99467 |
* |
4.130 |
3.750 |
6.000 |
FT |
441 |
1.125 |
99508 |
* |
4.130 |
3.875 |
6.000 |
FT |
458 |
1.062 |
99468 |
* |
4.130 |
4.000 |
6.000 |
FT |
415 |
1.000 |
99469 |
* |
4.145 |
3.750 |
6.000 |
FT |
448 |
1.125 |
99470 |
* |
4.145 |
3.875 |
6.000 |
FT |
432 |
1.062 |
99471 |
* |
4.145 |
4.000 |
6.000 |
FT |
420 |
1.000 |
99472 |
* |
4.155 |
3.750 |
6.000 |
FT |
454 |
1.125 |
99473 |
* |
4.155 |
3.875 |
6.000 |
FT |
436 |
1.062 |
99474 |
* |
4.155 |
4.000 |
6.000 |
FT |
460 |
1.000 |
99475 |
* |
4.165 |
3.750 |
6.000 |
FT |
422 |
1.125 |
99476 |
* |
4.165 |
3.875 |
6.000 |
FT |
414 |
1.062 |
99477 |
* |
4.165 |
4.000 |
6.000 |
FT |
428 |
1.000 |
Dome Top 17 or 18 Degree Heads
ROSS dome top
pistons are machined on our new XL series forgings for minimum weight and maximum
strength. Domes feature net effective dome cc as listed in DOME CC column. Pistons can be
machined to lower dome or convert to a flat top by customer if desired. Pins are .927
diameter, 2.950 length, .150 wall, 141 gram weight, aircraft quality, and are retained by
double spirolox or can be press fitted into rods. Suitable for nitrous systems of 250
horsepower or less. Ring grooves are 1/16, 1/16, 3/16.
NOT RECOMMEND FOR
FORCED INDUCTION SYSTEMS.
*
indicates oil support rails are included.
Dome Top 17 or 18 degree SBC Piston Listing |
Part # |
Notes |
Bore |
Stroke |
Rod Length |
Dome CC |
Grams |
C.H. |
99478 |
|
4.003 |
3.480 |
6.000 |
-1 |
439 |
1.255 |
99479 |
|
4.020 |
3.480 |
6.000 |
-1 |
444 |
1.255 |
99480 |
|
4.030 |
3.480 |
6.000 |
-1 |
451 |
1.255 |
99481 |
|
4.035 |
3.480 |
6.000 |
-1 |
454 |
1.255 |
99482 |
|
4.040 |
3.480 |
6.000 |
-1 |
457 |
1.255 |
99483 |
* |
4.125 |
3.750 |
6.000 |
5 |
468 |
1.125 |
99484 |
|
4.125 |
3.800 |
6.000 |
5 |
462 |
1.100 |
99485 |
* |
4.130 |
3.750 |
6.000 |
5 |
469 |
1.125 |
99486 |
* |
4.130 |
3.800 |
6.000 |
5 |
462 |
1.100 |
99487 |
* |
4.145 |
3.750 |
6.000 |
5 |
476 |
1.125 |
99488 |
* |
4.145 |
3.800 |
6.000 |
5 |
471 |
1.100 |
99489 |
* |
4.155 |
3.300 |
6.000 |
5 |
526 |
1.345 |
99490 |
* |
4.155 |
3.750 |
6.000 |
5 |
481 |
1.125 |
99491 |
* |
4.155 |
3.800 |
6.000 |
5 |
473 |
1.100 |
99492 |
* |
4.165 |
3.750 |
6.000 |
5 |
485 |
1.125 |
99493 |
* |
4.165 |
3.800 |
6.000 |
5 |
478 |
1.100 |
Late Model Stock Car Class Ultra Light
Weight for 2 barrel applications
ROSS Late Model
Stocker pistons are the lightest and strongest piston available. All pistons in this
product line have .175 deep intake valve pockets and .125 deep exhaust pockets for maximum
compression, except part # 99534 which has no valve pockets at all. Valve pockets can be
re-cut to .280 intake depth and .250 exhaust by engine builder if necessary. Designed for
400 horsepower or less. Ring grooves are 1/16, 1/16, 3 mm. Other features include .927 x
2.500 bearing material pins which weigh only 99 grams (Ross part # 927-06-25), pinfit,
double spirolox, split radius oil holes, double pin oilers, lock removal indents and
double traced side reliefs for minimum weight.
NOT RECOMMENDED FOR
USE WITH NITROUS OR FORCED INDUCTION SYSTEMS.
*
indicates price includes oil support rails
LMSC Ultra Light Weight 2 bbl Pistons Listing |
Part # |
Notes |
Bore |
Stroke |
Rod Length |
Dome CC |
Grams |
C.H. |
99518 |
|
4.030 |
3.480 |
5.700 |
FT |
412 |
1.550 |
99523 |
|
4.030 |
3.480 |
6.000 |
FT |
371 |
1.250 |
99534 |
|
4.030 |
3.480 |
6.000 |
FT |
373 |
1.250 |
99520 |
* |
4.030 |
3.480 |
6.250 |
FT |
335 |
1.015 |
99519 |
|
4.035 |
3.480 |
5.700 |
FT |
410 |
1.550 |
99516 |
|
4.035 |
3.480 |
6.000 |
FT |
373 |
1.250 |
99521 |
* |
4.035 |
3.480 |
6.250 |
FT |
335 |
1.015 |
99515 |
|
4.040 |
3.480 |
5.700 |
FT |
415 |
1.550 |
99517 |
|
4.040 |
3.480 |
6.000 |
FT |
371 |
1.250 |
99522 |
* |
4.040 |
3.480 |
6.250 |
FT |
338 |
1.015 |