Factory Camshaft Performance Regrind, 70-83 240Z-260Z-280Z-280ZX Non-Turbo

Performance Camshaft Grinds:
All performance camshafts are created in the machine shop where they are ground to chosen specifications. The unground camshafts (called "Billets") that we have sold for many decades are not currently available. Fortunately, the factory Nissan camshaft your Z came with is already of the highest quality! Performance camshaft grinds can be made perfectly from your original factory camshaft. All that is necessary is to set up your order with us, and send us your factory camshaft (Note: don't send it in until we tell you!). We have them professionally ground, and what you get back is not only a performance camshaft "grind", but one made from an actual factory original Nissan camshaft, so of the utmost quality to start with. Many of our customers are already enjoying the increased power and performance of our professional regrind of their Factory Nissan camshaft, and all have been very happy with the results.

Drilled vs Non-Drilled Camshafts:
You will get back the same camshaft that you send in. So if your cam is solid and requires the use of the oil spray bar, you will continue to use the oil spray bar. If your camshaft is drilled, then of course it will still be a drilled cam setup when you get it back. If you are sending us a camshaft that is NOT from your current vehicle, and it will change your current setup from drilled to non-drilled, then you will need to also add the oil spray bar system from the donor car, which depends on what cylinder head you are using, as some do not work with the factory Nissan Oil Spray Bar. Staying with drilled would be recommended. If you are going from a non-drilled camshaft to a drilled camshaft, then you will need to purchase the Cam Oiler Block Off Plate kit in Related items for it to work properly. If you have any questions, just let us know.

Fuel Injection vs Carburetion:
If you are currently changing your car from Carburetion to Fuel Injection or from Fuel Injection to Carburetion, be certain to select the proper option in "Fuel System" below. Camshafts are ground differently for Fuel Injection vs Carburetion, and we will grind your camshaft to one or the other based on your selection in "Fuel System" below. If you have any questions, just contact us by phone or email.

Rocker Arms:
Unfortunately, properly made new Rocker Arms are temporarily unavailable. Beware of aftermarket Rocker Arms offered for L6 engines that are made as all one piece. They are not hardened properly, and can destroy your camshaft in record time. We hope to have great news about properly made rocker arms soon. Until then, the best option is to have a professional machinist "resurface" your current rocker arms, insuring the contact pad is smooth, with all wear patterns removed. Depending on how much machining is necessary, this might change what lash pads you'll need for a proper wipe pattern. Just give us a call with any questions, and thank you for your patience.

Lash Pads:
Since the "base circle" of your camshaft will be changed, the contact position with the rocker arm pad will also change. A lash pad kit (see Related Items) is REQUIRED for proper function of your new camshaft. A proper valve job should always be done before the installation of a performance camshaft. If the machinist kept the valve stem heights consistent, then hopefully one size of lash pads will work for you (Generally .160 to .175). Each Rocker Arm will need to be checked for the proper wipe pattern on the contact pad. If you end up needing more than one size, you can order Individual Lash Pads (see Related Items) in the sizes you need. Improper rocker arm contact position, as determined by the Wipe Pattern, WILL destroy your camshaft! Just give us a call with any questions.

Performance Springs:
With higher lifts and longer durations than the factory cam grind, the Factory valve springs are insufficient, and "floating" may occur, which can seriously damage your engine. For camshaft grinds 1-5, our Performance Spring Kit (10-2011) is required (See Related Items). For camshaft grind 6, please give us a call for even stronger springs. If you have any questions about your valve springs, just give us a call.

Includes:

• (1) Your Own Factory Camshaft Reground For Performance (Choose Stage)
• (1) Extreme Pressure Cam Lubricant
• (1) Break-In Additive

Description:
The camshaft can be likened to the "brain" of an engine's mechanical components. It controls the timing of a number of critical operations. Modifying camshafts for performance has been part of the automotive scene since the beginning, and choosing a performance cam grind can make or break the vehicle's performance and drive-ability. The time-tested performance cam grinds we offer have cam profiles designed specifically for a Z's requirements. Even to the point of whether your Z is fuel injected or carbureted, professional machinists will give you the grind of your choice specifically tailored for your car's fuel set up. Read all of the data on this page for more details, specifications, as well as critical information related to installation and more. Various gaskets and parts will be required for the engine itself, such as a valve cover gasket, and others. Give us a call or see your qualified technician for more details, and see Related Items on this page.

Note:
If you are planning to install this kit yourself, we highly recommend purchasing "How To Modify Your Nissan & Datsun OHC Engine" book in Related Items. This book covers several important steps of the installation process.

Fuel Delivery System:
For camshaft grinds stages 1-3, we offer a different grind for Carbureted vs O.E. Fuel Injection vehicles (this is required for proper operation). Camshaft Grinds in Stages 4-6 are not for use with O.E. Fuel Injection systems, regardless of upgrades. Air Flow Meters used with O.E. Fuel Injection systems will not operate properly with these grinds. If you are using a non-original or racing Fuel Injection system, all grinds should work. Racers should discuss with their race engineer.

Camshaft Grind Comparison:
If you aren't certain which cam grind to choose, you can look back at the main camshaft information page for base information, and check below for characteristics of each option, and/or just give our sales technicians a call at (714)639-2620 for help deciding on the best cam grind for your Z.

• Stage 1
  Grind: #17030     Lift: (In/Ex) .460/.460     Duration: (In/Ex) 260/260
  Characteristics: Moderate idle, good power 1500-5500 RPM. Use with S.U. Carburetors, Weber DGV, Four Barrel Conversion, or O.E. Fuel Injection.
• Stage 2
  Grind: #17033     Lift: (In/Ex) .480/.480     Duration: (In/Ex) 274/274
  Characteristics: Good idle, power range 1800-6000 RPM. Great slalom grind. Use with S.U. Carburetors, Weber DGV, Triple Carburetors, Four Barrel Conversion, or O.E. Fuel Injection.
• Stage 3
  Grind: #17034     Lift: (In/Ex) .460/.460     Duration: (In/Ex) 270/280
  Characteristics: Rougher idle, excellent performance. Pulls hard from 2500-6600 RPM. Use with Weber DGV, Triple Carburetors, Four Barrel Conversion, or O.E. Fuel Injection.
• Stage 4
  Grind: #17036     Lift: (In/Ex) .495/.495     Duration: (In/Ex) 290/290
  Characteristics: Rough idle. Midrange and top end power cam for well setup car, 3500-7500 RPM. Excellent for drag or track racing. Use with Triple Carburetors, Four Barrel Conversion, or Aftermarket Fuel Injection.
• Stage 5
  Grind: #17038     Lift: (In/Ex) .560/.560     Duration: (In/Ex) 300/300
  Characteristics: Excellent road race power, 4000-8250 RPM. Use with Triple Carburetors, Four Barrel Conversion, or Aftermarket Fuel Injection.
• Stage 6
  Grind: #17039     Lift: (In/Ex) .620/.624     Duration: (In/Ex) 304/318
  Characteristics: Competition only. Power from 4500 to 8500 RPM. Use with Triple Carburetors, Four Barrel Conversion, or Aftermarket Fuel Injection.

Valve Job:
As referred to in the different sections above, a proper professional Valve Job should always be done along with changing to a performance camshaft grind. Now, due to proper new Rocker Arms being temporarily unavailable, in addition to the machinist keeping the valve stem heights consistent, they also need to add resurfacing the Rocker Arm contact pad to your Valve Job. Camshafts and Rocker Arms over time will develop wear patterns in each other. Your Camshaft being reground takes care of any issue with the surface of the Camshaft lobes, but if you leave the wear pattern in the Rocker Arm contact pad, it will quickly wear that same pattern into your freshly reground camshaft! Be sure to choose a reputable machine shop who has experience with L6 engines. Getting a local referral from a Z Club or forum is always a good option. Let us know if you have any questions.

Important:
Your cam must be in good, serviceable condition. If your cam is not serviceable, we will contact you prior to returning it to you. Severe damage or wear, such as pitting, severe lobe wear or cracked/broken cam bodies, are some examples of camshafts that cannot be serviced. Please contact us with any questions.

Legality:
Performance camshaft grinds are intended for race track and other non-highway use. They may be illegal for use in some states and areas. Please check your local, state, and federal laws before ordering.

Model Guide:
Datsun 240Z, 260Z, 280Z, 280ZX

Code Guide:
Datsun S30, S130

Year Guide:
1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983

Important Note!
Do not send your camshaft in yet! We will create your order, and then give you the proper identification information to send along with your camshafts, along with how and where to ship them. Sending your camshaft without this information will significantly delay your order. If you have any questions, just contact us.