PowerHeads CNC Ported 4V Heads


ph-4vh - PowerHeads CNC Ported 4V Heads

Item #:ph-4vh
Price: $2,350.00
Solid Bronze Guides
New Lifters
Qty.

We, at Last Call Racing, have found PowerHeads to produce the best performing products with the highest reliability you can ask for. Talk about power, extensive CNC testing ensures the best power made from the port design.

No reason to pay for big company's high overhead expenses, you'll find these heads are priced well below the competition. *These prices are to build customer provided heads, or may be assessed a core charge

Powerheads' builds with these guidelines:
  • 1) Tear down, thermal clean.
  • 2) Crack inspection.
  • 3) Re-size all guides.
  • 4) CNC performance porting.
  • 5) Machined 5 angle valve seats
  • 6) Forged Stainless Steel HIFLO valves.
  • 7) Comp cams spring package.
  • 8) CBN surface.
  • 9) Check cam tower alignment.
  • 10) Viton oil seals.
  • 11) Professional assembly of all components as needed.
Flow Stats, in Lift inches - CFM:

Superflow SF600, Test Pressure 28"

Intake:

  • .100" - 95.5
  • .150" - 135.2
  • .200" - 173.1
  • .250" - 210.1
  • .300" - 242.7
  • .350" - 274.2
  • .400" - 289.9
  • .450" - 301.0
  • .500" - 305.5
  • .550" - 307.3
  • .600" - 307.3


Exhaust
  • .100" - 84.7
  • .150" - 117.7
  • .200" - 157.7
  • .250" - 181.1
  • .300" - 195.3
  • .350" - 204.7
  • .400" - 209.4
  • .450" - 214.2
  • .500" - 217.3
  • .550" - 220.5
  • .600" - 223.6


Note from the machinist:

"POWERHEADS has been modifying these heads for over 10 years, probably longer than any US company. Many hours of flowbench research has gone into our porting designs to ensure our customers receive the best performing heads money can buy. Proper machine work, valve seat work, cam tower alignment, valve springs, installed spring heights, oil seals, followers, correct lifter pre load, camshaft selection, and assembly of all components is vital to proper operation. Modular heads are a very complex piece of equipment and there’s many ways to make mistakes. We have created a process to build these heads that eliminates problems and ensures the customer they receive a quality cylinder head that performs correctly from day one."

Feel free to place an order online and use our secure checkout 24 hours a day, 7 days a week, 365 days a year! Call Us M-F 9am-6pm PST @ (858) 527-2917.

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