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  Probe Industries SRS Pistons - Ford 331/347 Reverse Dome -14.2cc
Ford 331/347 -14.2cc Reverse Dome SRS Pistons

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SRS 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.

Item# Item Name Racer Price Qty Add
10668-030 SRS Pistons - Ford 331/347 Reverse Dome -14.2cc (+.030)
10668-040 SRS Pistons - Ford 331/347 Reverse Dome -14.2cc (+.040")
10668-STD SRS Pistons - Ford 331/347 Reverse Dome -14.2cc (STD)
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Technical Specs:
Item Code10668
Vendor NameProbe Industries
Product TypePistons
Product ModelSportsman Race Series - SRS
Engine Displacement (
Engine FamilyFORD-LINCOLN-MERCURY - Small Block 302 Based V8
Material2618-t61 Forged Aluminum
Base Bore (in)4.000
Stroke (in)3.250/3.400
Rod Length (in)5.400/5.315
Compression Height (in)1.175
Top TypeReverse Dome
Net Head Volume (cc)-14.2
Dish Depth (in)-0.105
Deck Thickness (in)0.195
Valve Pocket Cutters2.150 I - 1.700 E
Valve Pocket Depth (in).272/150 I - .200 E
Weight Without Pin (g)451
Wrist Pin Diameter (in)0.912
Wrist Pin Length (in)2.500
Wrist Pin Weight (g)113
Pin Lock TypeDbl Spiral
Ring Set #315-0049
Top Ring Groove Size1/16 in.
Second Ring Groove Size1/16 in.
Oil Ring Groove Size3.0 mm
Top Ring Land (in)0.220
Second Ring Land (in)0.140
Bottom Ring Land (in)0.070
QuantitySold in sets of 8.
NotesDesigned for Standard cylinder heads, will not fit Twisted Wedge cylinder heads.

Compression Ratio:
Part NumberCylinder Head Volume
Ford 331
Ford 347

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