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  Chevy 383 Dish Top -12.8cc - SRS Piston Set
Chevy 383 -12.8cc Dish Top SRS Pistons

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Available Part Numbers/Oversize

12345-STD - 4.000
12345-030 - 4.030
12345-040 - 4.040
12345-060 - 4.060


Probe SRS forged pistons are designed for high performance street and most racing applications. SRS pistons are available in a wide variety of designs, tuned to achieve the highest performance possible. Any combination from ultralight 2bbl oval track to high performance street, to heavily boosted race only cars will find Probe SRS Forged Pistons to be the perfect piston.

  • 2618-t61 Forged Aluminum
  • Lightweight wrist pins
  • Lightweight piston designs
  • Full floating wrist pins
  • Tight running clearances
  • Narrow piston rings
  • Low drag skirt design
  • Large variety of compression ratios
  • Design specific valve reliefs

PROBE Industries Forged Pistons - The Fastest, Most Powerful Pistons For the Money! Since 1987 Probe Industries has manufactured a wide variety of products ranging from lightweight billet rockers to forged pistons. Probe Industries is continually striving for excellence in offering a large selection of products to racers and automotive enthusiasts. Today, Probe forged pistons are a result of many years of technological advances in both forging and machine tool technology.

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Item# Item Name Probe Price Qty Add
12345-030 SRS Pistons - Chevy 383 Dish Top -12.8cc (+.030)
12345-040 SRS Pistons - Chevy 383 Dish Top -12.8cc (+.040)
12345-060 SRS Pistons - Chevy 383 Dish Top -12.8cc (+.060)
12345-STD SRS Pistons - Chevy 383 Dish Top -12.8cc (STD)
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Technical Specs:
Item Code12345
Probe Industries
Product TypePistons
Product ModelSportsman Race Series - SRS
Engine Displacement (
Engine FamilyCHEVROLET - Small Block V8
Material2618-t61 Forged Aluminum
Base Bore (in)4.000
Stroke (in)3.750
Rod Length (in)6.000
Compression Height (in)1.125
Top TypeDish Top
Net Head Volume (cc)-12.8
Dish Depth (in).080
Deck Thickness (in).160
Valve Pocket Cutters2.150 Intake - 2.150 Exhaust
Valve Pocket Depth (in).250 Intake - .250 Exhaust
Valve Pocket Max Depth.320 Intake - .320 Exhaust
Weight Without Pin (g)409
Wrist Pin Diameter (in).927
Wrist Pin Length (in)2.500
Wrist Pin Weight (g)118
Pin Lock TypeDouble Spiral
Ring Set #CR1001
Top Ring Groove Size1/16 in
Second Ring Groove Size1/16 in
Oil Ring Groove Size3.0 mm
Top Ring Land (in).180
Second Ring Land (in).125
Bottom Ring Land (in).070
QuantitySold in sets of 8

Compression Ratio:

Part Number
Cylinder Head Volume

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Forged Pistons - Domestic > SRS - Sportsman Race Series > Chevrolet - 350 Small Block V8 > Dish Top