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Howards Cams 4.600" Open Chamber Small Dome Pro Max 2618 Forged Race (Set of 8) Pistons Chevrolet Big Block V8
$1024.11
Howards Pro Max 2618 Forged Race Pistons
The forging design produces a stronger piston than most standard pistons for the ultimate in performance. All Howards HRC Racing Pistons are forged from 2618 billet bar stock and then heat treated and aged to a T61 condition (2618-T61). This material has less than 1% silicon particulate content. High silicon content pistons (forged from 4032 or MS75) will not stand up to the most extreme stress placed on many racing pistons. Simply stated, adding sand to the aluminum only makes it more brittle. Another advantage of 2618-T61 over the high silicon pistons is the ability to keep its shape under extreme pressure and high RPMs. "Skirt Shrinking" is not a problem with Howards HRC Racing Pistons. All HRC pistons are machined on the most modern CNC equipment in the industry. The design of the CNC-turned skirts allows these pistons to work properly under intense heat and severe side loads without scuffing or splitting the cylinder walls. Dome pistons are designed with radiused domes, eliminating sharp edges and "hot spots". The valve pockets are built to handle large cam profiles and oversize valves. Forced pin oilers, accumulator grooves, and lock removal indents are standard. Sets include lightweight .150" wall, heat-treated aircraft-quality wrist pins. Double spirolox is standard.

Features:
  • Forged from 2618-T61 Billet Aluminum Bar Stock
  • Oversize Valve Pockets
  • Accumulator Grooves for Improved Ring Seal
  • Machined Oil Drain Back Holes
  • Lightweight Aircraft Quality Wrist Pins Included
  • Lock Removal Indents
  • CNC Turned Skirts
  • Radius Valve Reliefs
  • 1/16", 1/16", 3/16" Ring Grooves
  • Forced Pin Oilers
  • Honed Pin Bores
  • Double Spirolox
Specifications:
  • Part Type: Pistons
  • Model: ProMax 2618 Forged Race Pistons
  • Application: Chevrolet Big Block V8
  • Piston Style: Open Chamber Small Dome with 2 Valve Reliefs
  • Cylinder Bore: 4.600"
  • Compression Distance: 1.245"
  • Deck Height (Zero Deck): 9.780" (4.500" Bore, 6.700" Rod = 10.200" Deck)
  • Dome Volume: 10cc
  • Crankshaft Stroke/Rod Length: 4.000" with 6.535" Connecting Rod (532ci)
  • Compression Ratio: 4.000" Stroke w/ 119cc Heads: 10.0
  • Crankshaft Stroke/Rod Length: 4.500" with 6.700" Connecting Rod (598ci)
  • Compression Ratio: 4.500" Stroke w/ 119cc Heads: 11.2
  • Piston Material: Forged 2618-T6 Aluminum
  • Intake Valve Relief Depth: .294"
  • Intake Valve Relief Diameter: 2.300"
  • Exhaust Valve Relief Depth: NA
  • Exhaust Valve Relief Diameter: NA
  • Accumulator Groves: Yes
  • Forced Pin Oilers: Yes
  • Gas Ports: No
  • Skirt Coating: CNC Turned Skirts
  • Lock Removal Indents: Yes
  • Average Piston Weight: 593
  • Wrist Pin Style: Press-Fit or Floating
  • Wrist Pins Included: .150" Heat Treated Air Craft Quality Steel
  • Wrist Pin Size: .990 x 2.750"
  • Average Wrist Pin Weight: 141
  • Pin Lock Included: Double Spirolox
  • Ring Grove Sizes: 1/16", 1/16", 3/16"
  • Piston Rings Included: No
  • Manufacturer: Howards Cams & Racing Components
  • Warranty: Race Application, No warranty expressed or implied
  • Quantity: Sold as Sets of 8
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Who is Howards Cams?

Howards Cams is an aftermarket company that Howards Johansen founded in 1945. It started as Howards Power & Racing Equipment and specialized in manufacturing high-performance racing cams for the automotive market. Even after turning the business over their oldest son, the company remained one of the best cam manufacturers in the industry.

Maximizing Their Racing Experience

The company has always used it is on-track experience to create powerful cam profile designs. It is why they have become one of the favorite brands of many top fuel dragster racers and drivers from other racing disciplines such as road racing, mudd bogging, marine racing, and circle track racing.

Advanced Manufacturing Technique

Howards Cams uses the most advanced computer design software to create the most competitive product out there. They offer a wide range of performance parts from camshafts, connecting rods, crankshafts, billet main caps, and forged pistons. All of these are made in the USA to ensure consistent quality.

Purchase Howards Cams Products At Vivid Racing

If you are in the market for high-performance parts for your engine, then look no further as Howard Cams is the brand for you. They have all the parts you need to create a fast machine and is trusted by many racers and enthusiast worldwide. If being on the top podium is your dream, then upgrade your engine with Howard Cams parts. 

To know more about the company, visit Vivid Racing and check out their list of products that fit your specific needs.

Warranty: Howards Cams Hydraulic/Mechanical Flat Tappet Camshafts are 100% Rockwell checked and parkerized at our manufacturing plantin Wisconsin. Howards Cams hydraulic and mechanical lifters are also 100% Rockwell checked for hardness to ensure that our customers receive the best American made components available. To give our customers a performance edge, Howards Cams will unconditionally replace to the original purchaser only, any non-usable hydraulic or mechanical flat tappet camshafts and lifters for 1/2 the amount of the original invoiced purchase price for a period of 6 months from the date of original retail purchase. Howards™ Cams does not warrant the performance of our products due to Howards™ Cams lack of control during product installation and usage. This applies to all camshafts, valve train components and all other racing components in our catalog and product line. Note: Due to oil available today, all Flat Tappet Cams (hydraulic or mechanical) must be initially ran with a quality break-in lube, such as Howards Z.P.M. Max. There is absolutely no warranty, expressed or implied or otherwise, on Howards Cams parts, labor, installation charges or other damaged parts. Howards Cams assumes no responsibility or liability whatsoever on incidental or consequential damages. There are no implied warranties of merchantability or fitness for a particular purpose. Howards Cams neither assumes nor authorizes any person to assume for it, any other obligation or liability in connection with the sale or use of our products. Howards Cams will replace or refund any part that has a manufacturers defect found before installation or alteration. Customers are responsible for blueprinting engine components before installation or startup.

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