Howards Cams ProMax 2618 Race Pistons 856027638-1

Name: Howards Cams ProMax 2618 Race Pistons
Brand: Howards Cams
SKU: HRS-856027638-1
Price: 187.99 USD
Availability: InStock
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Part Number: HRS-856027638-1

$187.99

Howards Cams ProMax 2618 Race Pistons

Pistons, Pistons, Chev BB, DM, 4.600", Each
See More Specifications | Check the Fit

Howards Cams ProMax 2618 Race Pistons 856027638-1

HRS-856027638-1

Not Yet Reviewed

Part Number: HRS-856027638-1

Estimated Ship Date: Oct 23, 2026

$187.99

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Overview

Applications

Q&A

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Estimated Ship Date: Oct 23, 2026 Would you rather pick it up?

Overview

Brand:

Howards Cams

Manufacturer's Part Number:

856027638-1

Part Type:

Pistons

Product Line:

Howards Cams ProMax 2618 Race Pistons

Summit Racing Part Number:

HRS-856027638-1

UPC:

840793149469

Piston Rings Included:

Bore (in.):

4.600 in.

Bore (mm):

116.840mm

Stroke:

4.250 in.

Engine Stroke Type:

Stroked

Actual Engine Displacement:

9.3L/565

Rod Length:

6.385 in.

Piston Style:

Dome, with single valve relief

Piston Material:

Forged aluminum

Compression Height (in.):

1.270 in.

Piston Head Volume (cc):

-38.00cc

Wrist Pin Style:

Press-fit or floating

Wrist Pin Retainers Included:

Yes

Wrist Pin Included:

Yes

Pin Diameter (in.):

0.990 in.

Piston Ring Thickness:

1/16 in. x 1/16 in. x 3/16 in.

File Fit:

Gapless:

Remanufactured:

Quantity:

Sold individually.

Howards Cams ProMax 2618 Race Pistons

Howards Cams ProMax 2618 race pistons are low-silicon and stronger pistons that you need for racing! Forged from 2618 billet bar stock and then heat-treated and aged to a T61 condition, ProMax race pistons have less than one percent silicon content to stand up to the most extreme racing stress. Plus, Howard Cams' X-beam forging design produces a stronger piston than most standard pistons for the ultimate in performance. These 2618 race pistons also have the ability to keep their shape under extreme pressure and high rpm with no skirt shrinking! CNC-turned skirts, oversized valve pockets with radius valve reliefs, forced pin oilers, accumulator grooves, double Spirolox, and lock removal indents are standard features. Lightweight, heat-treated, aircraft-quality wrist pins are also included. Pump up the power of your race engine with the serious strength of American-made ProMax 2618 race pistons from Howards Cams.

Applications