Probe FPS 331 Forged Pistons P3311f-030

• Flat Top 4cc Valve relief, TFS and Inline Relief
• 1.165 Compression Height for 331 Stroker
• For 3.250 stroke / 5.400 Rod or 3.4 stroke w 5.315 rod
• ~10.4:1 CR with 58cc head, 10:1 with 61cc, 9.7:1 w/64
• Forged 4032 Alloy
• For bushed or press fit rods

Probe Forged Pistons:

FACTORY PERFORMANCE SERIES – FPS

Probe FPS Forged Pistons are designed for heavy duty (towing, etc.) or high performance street car, trucks, marine and some racing applications. FPS pistons are far stronger than hypereutectic cast pistons. May be used with boost and nitrous oxide.

• 4032 Forged Aluminum
• Increased valve clearance
• Tight piston to wall clearance
• Reduced piston weight
• Reinforced piston skirts
• Offset wrist pins (Eliminates collapsed piston skirts)
• Floating wrist pins

Item Code P3311F Vendor Name Probe Industries Product Type Pistons Product Model Factory Performance Series - FPS Engine Displacement (cu.in.) 331 Engine Family FORD-LINCOLN-MERCURY - Small Block 302 Based V8 Material 4032 Forged Aluminum Base Bore (in) 4.000 Stroke (in) 3..250 Rod Length (in) 5.400 Compression Height (in) 1.165 Top Type Flat Top Net Head Volume (cc) -4.0 Deck Thickness (in) 0.325 Valve Pocket Depth (in) .250I - .200E Weight Without Pin (g) 415 Wrist Pin Diameter (in) 0.927 Wrist Pin Length (in) 2.500 Wrist Pin Weight (g) 118 Pin Lock Type Dbl Spiral Ring Set # 40564CP Top Ring Groove Size 5/64 in. Second Ring Groove Size 5/64 in. Oil Ring Groove Size 3/16 in. Top Ring Land (in) 0.220 Second Ring Land (in) 0.140 Bottom Ring Land (in) 0.070 Oil Rail Support Part # 10112 Quantity Sold in sets of 8.

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.

Brand: Probe    Manufacturers Part Number: P3471F-030