__72547.1787273950.jpg?c=2 "Piston Set (Qty. 8) (Keith Black High Performance) - Chevrolet 454 .250\" Dome Hyper 6.135\" Rod - Enginetech KB257(8)")
__72547.1787273950.jpg?c=2 "Piston Set (Qty. 8) (Keith Black High Performance) - Chevrolet 454 .250\" Dome Hyper 6.135\" Rod - Enginetech KB257(8)")
Product Description
Piston Set - KB257(8)
| Details | Value |
|---|---|
| Part number | KB257(8) |
| Sizes available | 030, 040 |
Dimensions
| Attribute | Value |
|---|---|
| AttributeData | 0.9900 |
| CatalogColumn | Pin Dia. |
| Attribute | Value |
|---|---|
| AttributeData | 1.645 |
| CatalogColumn | Comp. Ht |
| Attribute | Value |
|---|---|
| AttributeData | 107.95 |
| CatalogColumn | Bore_mm |
| Attribute | Value |
|---|---|
| AttributeData | 3/16 |
| CatalogColumn | Oil Ring |
| Attribute | Value |
|---|---|
| AttributeData | 4.250 |
| CatalogColumn | Bore Inch |
| Attribute | Value |
|---|---|
| AttributeData | 5/64 |
| CatalogColumn | 2nd Ring |
| Attribute | Value |
|---|---|
| AttributeData | 5/64 |
| CatalogColumn | Top Ring |
Package detail
| Attribute | Value |
|---|---|
| Package Size | 4.5x9.25x18.25" |
| Weight | 15 lbs |
Competitive interchange
| Brand | Part number |
|---|---|
| Silvolite | KB257 |
Product notes
Enginetech Pistons
Enginetech pistons have superior size and weight grading within each set.
Most Enginetech pistons are decked 0.010 to 0.020 to compensate for oversized bores and head/deck milling.
Enginetech pistons are manufactured with state of the art materials to match OE requirements. We offer cast aluminum, hypereutectic, and forged applications. Treatments such as skirt coatings, anodized heads & Ni-resist inserts are used as required.
Superior quality
Enginetech specializes in providing high performance engine pistons for engine rebuilds for domestic, import, and high performance application.
Also fits
| Category | Make | Model | User engine | Year range | Notes |
|---|---|---|---|---|---|
| HIGH PERFORMANCE | GM | 7.4L / 454 OHV V8 16V Chev. Mark IV Big Block 4.250" Bore 70-90 | 70-90 | KB Performance. Open chamber. .250" hollow dome top (-25.5cc). 1.645" CH. Hyper. Use 6.135" rod. Use M42558 rings. | |
| HIGH PERFORMANCE | GM | 7.4L / 454 OHV V8 16V Chev. Mark V Big Block 4.250" Bore 91-97 | 91-97 | KB Performance. Open chamber. .250" hollow dome top (-25.5cc). 1.645" CH. Hyper. Use 6.135" rod. Use M42558 rings. | |
| HIGH PERFORMANCE | GM | 7.4L / 454 OHV V8 16V Chev. Mark VI Big Block 4.250" Bore 96-00 | 96-00 | KB Performance. Open chamber. .250" hollow dome top (-25.5cc). 1.645" CH. Hyper. Use 6.135" rod. Use M42558 rings. |
__72547.1787273950.jpg?c=2 "Piston Set (Qty. 8) (Keith Black High Performance) - Chevrolet 454 .250\" Dome Hyper 6.135\" Rod - Enginetech KB257(8)")