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You are here: Home > Pistons > Probe Forged Pistons > PRS - Professional Race Series > Chevrolet > Chevrolet - LS Series > Flat Top
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LS 5.3L LS Series LS7
LT1

Flat top pistons in a Chevrolet LS Series engine will generally provide compression ratios in the 10.0 to 12.0:1 range which makes them a good option for high performance and racing engines with aluminum heads and larger than stock camshafts.

Please select your piston from the list below, or select from the categories listed above.
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Probe Forged Pistons
Probe PRS Series - Chevrolet LS 5.3L - Flat - 1.300 C/H - 3.780 Base Bore - -3.5cc -.927 Pin - 15° Head

P/N: 8030-1-15506
  • V/R for 15° Heads
  • 1.300 Compression Height
  • 3.622 Stroke
  • 6.125 Rod Length
  • .927 Wrist Pin Diameter
  • 1.5 1.5 3.0 Rings
  • Nitrous - 300 H/P
  • Forced Induction - 15 lbs
Available Bore Sizes: 3.780, 3.799
Price includes pistons, pins, locks and oil rail spacers (as required).
Probe Forged Pistons
Probe PRS Series - Chevrolet LS 5.3L - Flat - 1.335 C/H - 3.780 Base Bore - -3.5cc -.945 Pin - 15° Head

P/N: 8030-1-15508
  • V/R for 15° Heads
  • 1.335 Compression Height
  • 3.622 Stroke
  • 6.098 Rod Length
  • .927 Wrist Pin Diameter
  • 1.5 1.5 3.0 Rings
  • Nitrous - 300 H/P
  • Forced Induction - 15 lbs
Available Bore Sizes: 3.780, 3.799
Price includes pistons, pins, locks and oil rail spacers (as required).
Probe Forged Pistons
Probe PRS Series - Chevrolet LS Series - Flat - 1.050 C/H - 4.065 Base Bore - -2.7cc -.927 Pin - 15° Head

P/N: 8033-1-15044
  • V/R for 15° Heads
  • 1.050 Compression Height
  • 4.125 Stroke
  • 6.125 Rod Length
  • .927 Wrist Pin Diameter
  • 1.2 1.2 3.0 Rings
  • Nitrous - 300 H/P
  • Forced Induction - 15 lbs
Available Bore Sizes: 4.065, 4.070, 4.075, 4.080
Price includes pistons, pins, locks and oil rail spacers (as required).
Probe Forged Pistons
Probe PRS Series - Chevrolet LS Series - Flat - 1.110 C/H - 3.898 Base Bore - -2.7cc -.927 Pin - 15° Head

P/N: 8031-1-15021
  • V/R for 15° Heads
  • 1.110 Compression Height
  • 4.000 Stroke
  • 6.125 Rod Length
  • .927 Wrist Pin Diameter
  • 1.2 1.2 3.0 Rings
  • Nitrous - 300 H/P
  • Forced Induction - 15 lbs
Available Bore Sizes: 3.898, 3.905
Price includes pistons, pins, locks and oil rail spacers (as required).
Probe Forged Pistons
Probe PRS Series - Chevrolet LS Series - Flat - 1.110 C/H - 4.000 Base Bore - -2.7cc -.927 Pin - 15° Head

P/N: 8032-1-15022
  • V/R for 15° Heads
  • 1.110 Compression Height
  • 4.000 Stroke
  • 6.125 Rod Length
  • .927 Wrist Pin Diameter
  • 1.2 1.2 3.0 Rings
  • Nitrous - 300 H/P
  • Forced Induction - 15 lbs
Available Bore Sizes: 4.005, 4.030, 4.040, 4.125
Price includes pistons, pins, locks and oil rail spacers (as required).
Probe Forged Pistons
Probe PRS Series - Chevrolet LS Series - Flat - 1.110 C/H - 4.000 Base Bore - -2.7cc -.927 Pin - AFR LS3 12° Head

P/N: 8032-1-25059
  • V/R for AFR LS3 12° Heads
  • 1.110 Compression Height
  • 4.000 Stroke
  • 6.125 Rod Length
  • .927 Wrist Pin Diameter
  • 1.2 1.2 3.0 Rings
  • Nitrous - 300 H/P
  • Forced Induction - 15 lbs
Available Bore Sizes: 4.005, 4.030, 4.040, 4.125
Price includes pistons, pins, locks and oil rail spacers (as required).
Probe Forged Pistons
Probe PRS Series - Chevrolet LS Series - Flat - 1.110 C/H - 4.065 Base Bore - -2.7cc -.927 Pin - 15° Head

P/N: 8033-1-15032
  • V/R for 15° Heads
  • 1.110 Compression Height
  • 4.000 Stroke
  • 6.125 Rod Length
  • .927 Wrist Pin Diameter
  • 1.2 1.2 3.0 Rings
  • Nitrous - 300 H/P
  • Forced Induction - 15 lbs
Available Bore Sizes: 4.065, 4.070, 4.075, 4.080
Price includes pistons, pins, locks and oil rail spacers (as required).
Probe Forged Pistons
Probe PRS Series - Chevrolet LS Series - Flat - 1.110 C/H - 4.065 Base Bore - -2.7cc -.927 Pin - AFR LS3 12° Head

P/N: 8033-1-25064
  • V/R for AFR LS3 12° Heads
  • 1.110 Compression Height
  • 4.000 Stroke
  • 6.125 Rod Length
  • .927 Wrist Pin Diameter
  • 1.2 1.2 3.0 Rings
  • Nitrous - 300 H/P
  • Forced Induction - 15 lbs
Available Bore Sizes: 4.065, 4.070, 4.075, 4.080
Price includes pistons, pins, locks and oil rail spacers (as required).
Probe Forged Pistons
Probe PRS Series - Chevrolet LS Series - Flat - 1.300 C/H - 3.898 Base Bore - -2.7cc -.927 Pin - 15° Head

P/N: 8031-1-15009
  • V/R for 15° Heads
  • 1.300 Compression Height
  • 3.622 Stroke
  • 6.125 Rod Length
  • .927 Wrist Pin Diameter
  • 1.2 1.2 3.0 Rings
  • Nitrous - 300 H/P
  • Forced Induction - 15 lbs
Available Bore Sizes: 3.898, 3.905
Price includes pistons, pins, locks and oil rail spacers (as required).
Probe Forged Pistons
Probe PRS Series - Chevrolet LS Series - Flat - 1.300 C/H - 4.000 Base Bore - -2.7cc -.927 Pin - 15° Head

P/N: 8032-1-15023
  • V/R for 15° Heads
  • 1.300 Compression Height
  • 3.622 Stroke
  • 6.125 Rod Length
  • .927 Wrist Pin Diameter
  • 1.2 1.2 3.0 Rings
  • Nitrous - 300 H/P
  • Forced Induction - 15 lbs
Available Bore Sizes: 4.005, 4.030, 4.040, 4.125
Price includes pistons, pins, locks and oil rail spacers (as required).