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P/N: 8125-3-13731
- V/R for OEM Head
- 1.395 Compression Height
- 4.000 Stroke
- 6.385 Rod Length
- .990 Wrist Pin Diameter
- 1/16 1/16 3/16 Ring Grooves
- Nitrous - 250 H/P
- Forced Induction - 12 lbs
Available Bore Sizes: 4.250, 4.280, 4.310, 4.320, 4.350, 4.375
Price includes pistons, pins, locks and oil rail spacers (as required)
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P/N: 8122-3-14934
- SRS Alcoholic (14.0:1)
- V/R for 23° Wedge Head
- 1.000 Compression Height
- 4.000 Stroke
- 6.000 Rod Length
- .927 Wrist Pin Diameter
- 1.5 1.5 3.0 Ring Grooves
- Nitrous - 250 H/P
- Forced Induction - 12 lbs
Available Bore Sizes: 4.125, 4.155, 4.165, 4.185
Price includes pistons, pins, locks and oil rail spacers (as required)
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P/N: 8100-1-12348
- V/R for Standard 20° Wedge Head
- 1.090 Compression Height
- 3.400 Stroke
- 5.400 Rod Length
- .927 Wrist Pin Diameter
- 1.5 1.5 3.0 Ring Grooves
- Nitrous - 250 H/P
- Forced Induction - 12 lbs
Available Bore Sizes: 4.000, 4.030, 4.040
Price includes pistons, pins, locks and oil rail spacers (as required)
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P/N: 9000-11003
- Valve Pockets for Standard Wedge Heads
- Probe 3.400 Stroke Cast Steel Crankshaft
- Probe 5.400 ctc Machined Beam 5140 Steel Rods
- Wiseco PTS 4032 Forged Pistons-1.090 C/H
- ARP 8740 Through Bolts
- 4.030 or 4.040 Bore sizes
- External Balance (28 oz)
- Components rated at 550 Horsepower
Available Bore Sizes: 4.030, 4.040
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P/N: 8104-1-10663
- V/R for OEM Head
- 1.350 Compression Height
- 4.300 Stroke
- 6.800 Rod Length
- .990 Wrist Pin Diameter
- 1/16 1/16 3/16 Ring Grooves
- Nitrous - 250 H/P
- Forced Induction - 12 lbs
Available Bores Sizes: 4.360, 4.390, 4.400, 4.420, 4.440
Price includes pistons, pins, locks and oil rail spacers (as required)
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P/N: AFR-1660
- A356 Cast Aluminum
- 100% CNC Ported
- 230cc Intake Runner
- 65cc Combustion Chamber
- 3.900 Minimum Bore
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P/N: 8104-1-30663
- V/R for AFR Head
- 1.350 Compression Height
- 4.300 Stroke
- 6.800 Rod Length
- .990 Wrist Pin Diameter
- 1/16 1/16 3/16 Ring Grooves
- Nitrous - 250 H/P
- Forced Induction - 12 lbs
Available Bores Sizes: 4.360, 4.390, 4.400, 4.420, 4.440
Price includes pistons, pins, locks and oil rail spacers (as required)
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P/N: 8025-3-14032
- V/R for OEM Head
- 1.270 Compression Height
- 4.250 Stroke
- 6.385 Rod Length
- .990 Wrist Pin Diameter
- 52100 Bearing Steel Wrist Pins
- .043 .043 3.0 Ring Grooves
- Top or Lateral Gas Ports
- Nitrous - 300 H/P
- Forced Induction - 15 lbs
Available Bore Sizes: 4.250, 4.280, 4.310, 4.320, 4.350, 4.375
Price includes pistons, pins, locks and oil rail spacers (as required)
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P/N: PMX-BBC-121A-9371
- 356-t6 Aluminum
- 370cc Intake Runner
- Hand bowl blended
- 121cc Combustion Chamber
Assembled heads feature 21-4N, back cut swirl polished, 1 piece stainless steel valves.
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P/N: 8000-1-10660
- V/R for Standard 20° Wedge Head
- 1.090 Compression Height
- 3.400 Stroke
- 5.400 Rod Length
- .912 Wrist Pin Diameter
- 52100 Bearing Steel Wrist Pins
- .043 .043 3.0 Ring Grooves Ring Grooves
- Top or Lateral Gas Ports
- Nitrous - 300 H/P
- Forced Induction - 15 lbs
Available Bore Sizes: 4.000, 4.030, 4.040
Price includes pistons, pins, locks and oil rail spacers (as required)
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P/N: PMX-SBF-64S-9212
- 356-t6 Aluminum
- 200cc Intake Runner
- Hand bowl blended
- 64cc Combustion Chamber
Assembled heads feature 21-4N, back cut swirl polished, 1 piece stainless steel valves
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P/N: MOL-460-4500PC6F
- 4.500 Stroke
- 6.700 Minimum Rod Length
- 2.200 Rod Journal
- 3.000 Main Journal
- Internal Balance
- 2 piece Rear Main Seal
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