Speed Pro Hypereutectic Pistons for Chevy

Speed Pro pistons: Cast Hyperuetectic Pistons Sealed Power / Speed Pro pistons, is the premier brand of replacement engine parts for automotive, performance and a wide range of other applications. Sealed Power replacement pistons are manufactured from exclusive aluminum alloys matched to the engines’ performance requirements. Proprietary casting, machining techniques and quality control procedures ensure unsurpassed reliability and service

  • Optimized metallurgy allows operation with standard ring end gaps and conventional ring land locations
  • Speed Pro pistons are Highly resistant to scuffing
  • Speed Pro pistons are the Ideal choice for street performance applications
  • Most Feature DUROSHIELD® anti-friction skirt coating

Speed Pro Pistons DUROSHIELD® skirt coating dramatically reduces friction and related scuffing without the need to adjust wall clearance. The result is enhanced ring seal, increased horsepower and extended piston life.

 Speed-Pro’s hypereutectic pistons operate perfectly with standard ring end gaps and have conventional ring land locations. When compared to traditional cast pistons, which are not designed for performance use, the hypereutectics are significantly stronger, particularly in the highly loaded ring land, skirt and pin bore areas. Speed-Pro’s FM244 Alloy contains 16.5 percent silicon and has excellent tensile and fatigue strength. This material’s improved thermal characteristics, its greater hardness and the increased resistance to scuffing permit tight bore clearances which help minimize noise on cold engine start up. This quiet operation, along with a lower cost are the primary advantages over a comparable forged piston. These pistons are an excellent choice for street performance, “claimer” oval track engines and bracket racing use. Speed Pro pistons will also work well in moderate supercharged applications and are suitable for towing and marine use


 
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Sealed Power Pistons

Part #: 8-H124CL

Matched set of 8 pistons for 6" Rods (4.000 bore x 3.750 Stroke). Flat Top 2 Valve Reliefs Piston Set
Price: $269.02
Part #: Clearance tech

Piston to Valve and Cylinder Head ClearancesPiston to valve clearance should be a minimum of .100". This clearance will be changed if heads or block have been machined and must be checked at asse...
Price: CALL
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Part #: Compression tech

Compression Ratio Determination

Choosing the correct compression ratio for an application is the key to success. Too high a ratio will cause far more problems than will one that is a bit low, so b...
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Part #: H100CP

350 BASED eng. Lightweight CNC machined(4.000 bore x 3.480 Stroke) press or floating pin, coated skirt. Pistons sold in sets of 8, price shown is each
Price: $33.57
Part #: H140CL

350 BASED eng. (4.000 bore x 3.480 Stroke) 6" Rod, CNC Machined, Lightweight, press or floating pin,coated skirt. Pistons sold in sets of 8, price shown is each
Price: $37.11
Part #: H345DCP

350 BASED engine (4.000 bore x 3.480 Stroke) press pin, coated skirt. Pistons sold in sets of 8, price shown is each. Do not use in 4.3L V6!
Price: $95.92
Part #: H345DCP20

350 BASED eng. +.020 over sized (4.000 bore x 3.480 Stroke) Float or press pin, coated skirt. Pistons sold in sets of 8, price shown is each Do not use in a 4.3L
Price: $95.92
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Part #: H345DCP30

350 BASED eng. +.030 over sized (4.000 bore x 3.480 Stroke) Float or press pin, coated skirt. Pistons sold in sets of 8, price shown is each Do not use in a 4.3L
Price: $95.92
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Part #: H345DCP40

350 BASED eng. +.040 over sized (4.000 bore x 3.480 Stroke) Float or press pin, coated skirt. Pistons sold in sets of 8, price shown is each Do not use in a 4.3L
Price: $11.99
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Part #: H345DCP60

350 BASED eng. +.060 over sized (4.000 bore x 3.480 Stroke) Float or press pin, coated skirt. Pistons sold in sets of 8, price shown is each Do not use in a 4.3L
Price: $11.99
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Part #: H400CP

400 BASED eng. (4.125 bore x 3.750 Stroke) 5.56" rod, press pin, coated skirt. Pistons sold in sets of 8, price shown is each
Price: $19.75
Part #: H426CP

454 BASED; .100 Dome w/ 1 valve relief, 4.250 bore x 4.00 stroke, press or floating pin, coated skirts. Pistons sold in sets of 8, price shown is each.
Price: $26.59
Part #: H534CP

305 BASED eng. (3.736 bore x 3.480 Stroke) press pin, coated skirt. Pistons sold in sets of 8, price shown is each.
Price: $24.46
Part #: H581CP

454 BASED; .340 Dome; 2 valve reliefs, 4.250 bore x 4.00 stroke, press or floating pin, coated skirts. Pistons sold in sets of 8, price shown is each.
Price: $50.83
Part #: H597ACP

Flat top 4 valve reliefs newer 350 BASED eng. STD SIZED with thin ring mm (4.000 bore x 3.480 Stroke) Float or press pin, coated skirt. Pistons sold in sets of 8, price shown is each Do not use in a 4.3L
Price: $20.59
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Part #: H597ACP20

Flat top 4 valve reliefs newer 350 BASED eng. .020 OVER SIZED with thin ring mm (4.000 bore x 3.480 Stroke) Float or press pin, coated skirt. Pistons sold in sets of 8, price shown is each Do not use in a 4.3L.
Price: $20.59
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Part #: H597ACP30

Flat top 4 valve reliefs newer 350 BASED eng. .030 OVER SIZED with thin ring mm (4.000 bore x 3.480 Stroke) Float or press pin, coated skirt. Pistons sold in sets of 8, price shown is each Do not use in a 4.3L
Price: $20.59
Quantity:

Part #: H597ACP40

Flat top 4 valve reliefs newer 350 BASED eng. .040 OVER SIZED with thin ring mm (4.000 bore x 3.480 Stroke) Float or press pin, coated skirt. Pistons sold in sets of 8, price shown is each Do not use in a 4.3L
Price: $20.59
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Part #: H601P

400 BASED eng. (4.125 bore x 3.750 Stroke) 5.56" rod, press pin,non-coated skirt. Pistons sold in sets of 8, price shown is each.
Price: $39.72
Part #: H615CP

400 BASED eng. (4.125 bore x 3.750 Stroke) .135 Dish, 5.7" rod, press or floating pin, coated skirt. Pistons sold in sets of 8, price shown is each.
Price: $39.16
Part #: H616CP

400 BASED eng. (4.125 bore x 3.750 Stroke) Flat Top, 5.7" rod, press or floating pin, coated skirt. Pistons sold in sets of 8, price shown is each.
Price: $22.98
Part #: H617CP

350 BASED eng. (4.000 bore x 3.480 Stroke) .275 Dome, press or float pin, coated skirt. Pistons sold in sets of 8, price shown is each.
Price: $24.74
Part #: H618CP

350 BASED eng. (4.000 bore x 3.480 Stroke) .125 Dome, press or float pin, coated skirt. Pistons sold in sets of 8, price shown is each.
Price: $24.74
Part #: H625CP

454 BASED; Flat Top 2 valve reliefs, 4.250 bore x 4.00 stroke, press or floating pin, coated skirts. Pistons sold in sets of 8, price shown is each.
Price: $54.27
Part #: H635CP

383 Stroker Based eng. .200 Dome (4.000 bore x 3.750 Stroke) press or float pin, coated skirt. 350 engines using a 400 SBC crank with 5.7" rods. Pistons sold in sets of 8, price shown is each.
Price: $28.53
Part #: H660CP

327 BASED eng. (4.000 bore x 3.250 Stroke) press pin, coated skirt. Pistons sold in sets of 8, price shown is each. Ring dimensions 5/64, 5/64, 3/16, Flat Top 2 valve reliefs, Compression dist 1.675, Deck Clearance .025, Skirt Clearance .0010
Price: $24.74
Part #: H669ACP

PERFORMANCE- Newer Chevrolet 350; flat top, 2 reliefs; 9.58:1 with 64cc heads Rings E921K 1.5mm, 1.5mm, 3.0mm
Price: $29.96
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Part #: H669ACP30

PERFORMANCE- Newer Chevrolet 350 flat top +.030 OVER SIZE 2 reliefs 9.58:1 with 64cc heads Rings E921K 1.5mm, 1.5mm, 3.0mm
Price: $29.96
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Part #: H669ACP40

PERFORMANCE- Newer Chevrolet 350 flat top +.040 OVER SIZE 2 reliefs 9.58:1 with 64cc heads Rings E921K 1.5mm, 1.5mm, 3.0mm
Price: $29.96
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Part #: H669ACP60

PERFORMANCE- Newer Chevrolet 350 flat top +.060 OVER SIZE 2 reliefs 9.58:1 with 64cc heads Rings E921K 1.5mm, 1.5mm, 3.0mm
Price: $29.96
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Part #: H693CP

454 BASED; .210 Dome; 2 valve reliefs, 4.250 bore x 4.00 stroke, press or floating pin, 6.135" rods, coated skirts. Pistons sold in sets of 8, price shown is each.
Price: $430.96
Part #: H815ACP

PERFORMANCE- Newer Chevrolet 350 Dish .098 Deep 4 Valve Relief 9.58:1 with 64cc heads Rings E921K 1.5mm, 1.5mm, 3.0mm
Price: $29.96
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Part #: H815ACP20

PERFORMANCE- Newer Chevrolet 350 Dish .020 OVER SIZE .098 Deep 4 Valve Relief 9.58:1 with 64cc heads Rings E921K 1.5mm, 1.5mm, 3.0mm
Price: $29.75
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Part #: H815ACP30

PERFORMANCE- Newer Chevrolet 350 Dish .030 OVER SIZE .098 Deep 4 Valve Relief 9.58:1 with 64cc heads Rings E921K 1.5mm, 1.5mm, 3.0mm
Price: $29.75
Quantity:

Part #: H815ACP40

PERFORMANCE- Newer Chevrolet 350 Dish .040 OVER SIZE .098 Deep DISH 4 Valve Relief 9.58:1 with 64cc heads Rings E921K 1.5mm, 1.5mm, 3.0mm
Price: $29.38
Quantity:

Part #: H815ACP60

PERFORMANCE- Newer Chevrolet 350 Dish .060 OVER SIZE .098 Deep 4 Valve Relief 9.58:1 with 64cc heads Rings E921K 1.5mm, 1.5mm, 3.0mm
Price: $29.96
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Part #: H859CP

Hypereutectic Pistons 383 Stroker Based Engine
Price: $167.92
Part #: H860CP

383 Stroker Based eng. Flat 2 reliefs(4.000 bore x 3.750 Stroke) press or float pin, coated skirt 350 engines using a 400 SBC crank with 5.7" rods. Pistons sold in sets of 8, price shown is each.
Price: $19.89
Part #: Skirt Coatings

A Coated Skirt piston can be identified buy a (C ) in the end of the main part number for instance H345NP is not coated a H345NCP is coated
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