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68-72 Pontiac A-Body Engine Compartment Kit

Everything you need to convert your factory air-conditioned 68-72 GTO/LeMans/Grand Prix/Tempest from the original A6 compressor to an ultra efficient rotary compressor and parallel flow condenser.
SKU: 22-621
Make: PONTIAC
$799.99

Engineered specifically for your 68-72 GTO/LeMans/Grand Prix/Tempest with V8 engine and factory a/c.

WHY UPGRADE TO A ROTARY COMPRESSOR?

  • Eliminate compressor shaft seal leaks.  The original A6 compressors all have a tendency to leak if the air-conditioning system in your car or truck is left unused for as little as two weeks.  This can cause poor performance, as well as frequent maintenance and/or premature component failure.  The modern rotary Sanden-style compressor does not have this problem.

  • Converting to 134a?  You get the majority of the parts needed to make the conversion from the old R12 refrigerant to the newer 134a refrigerant.

  • Save weight, horsepower and improve fuel economy.  The Sanden-style rotary compressor is at least half the weight of the stock compressor assembly, and draws about 1/4 or less horsepower, which translates into better fuel economy.

  • Have a lead foot?  The Sanden-style rotary compressor can be operated continuously at up to 6k RPM's!  Stock compressors cannot handle that kind of abuse.

  • Modernize the appearance of your engine compartment. The smaller & cleaner look of the Sanden-style compressor combined with Classic Auto Air’s DIRECT BOLT IN Parallel Flow condenser are designed specifically to fit your stock application. Not only does it fit properly, but it looks good too!

WHAT DO I GET WITH THIS KIT?

  • Modern Sanden-style rotary compressor

  • Compressor mount

  • Suction hose (from POA valve mounted on the evaporator, at the firewall to the compressor.)*

  • Discharge hose (from compressor to top fitting on condenser)*

  • Filter-Drier w/ Brackets

  • Parallel Flow Condenser w/ Brackets & Insulator Bushings
  • Liquid Line

  • O-Rings & hardware
  • All the tech support you need!

  *Hoses supplied with one end open, along with the corresponding fitting and cutting/crimping instructions. Your local hydraulic shop can provide crimping services, or we can provide the crimping service for an additional fee. Instructions for both options will be included.

DO I NEED TO BUY ANYTHING ELSE?

It really depends on the condition of other parts in the a/c system.  Any functional part in the air-conditioning system that contains refrigerant within it that is to be reused, must be flushed clean to prevent contamination of newly replaced parts to insure that they are clean and free of contaminants.  This includes parts such as the evaporator and the a/c valves.   Doing this will help insure for a reliable, long-lasting system.  Also, if converting to 134a, your POA valve will need to be calibrated for use with 134a, or replaced with a POA Eliminator Valve.

Engineered specifically for your 68-72 GTO/LeMans/Grand Prix/Tempest with V8 engine and factory a/c.

WHY UPGRADE TO A ROTARY COMPRESSOR?

  • Eliminate compressor shaft seal leaks.  The original A6 compressors all have a tendency to leak if the air-conditioning system in your car or truck is left unused for as little as two weeks.  This can cause poor performance, as well as frequent maintenance and/or premature component failure.  The modern rotary Sanden-style compressor does not have this problem.

  • Converting to 134a?  You get the majority of the parts needed to make the conversion from the old R12 refrigerant to the newer 134a refrigerant.

  • Save weight, horsepower and improve fuel economy.  The Sanden-style rotary compressor is at least half the weight of the stock compressor assembly, and draws about 1/4 or less horsepower, which translates into better fuel economy.

  • Have a lead foot?  The Sanden-style rotary compressor can be operated continuously at up to 6k RPM's!  Stock compressors cannot handle that kind of abuse.

  • Modernize the appearance of your engine compartment. The smaller & cleaner look of the Sanden-style compressor combined with Classic Auto Air’s DIRECT BOLT IN Parallel Flow condenser are designed specifically to fit your stock application. Not only does it fit properly, but it looks good too!

WHAT DO I GET WITH THIS KIT?

  • Modern Sanden-style rotary compressor

  • Compressor mount

  • Suction hose (from POA valve mounted on the evaporator, at the firewall to the compressor.)*

  • Discharge hose (from compressor to top fitting on condenser)*

  • Filter-Drier w/ Brackets

  • Parallel Flow Condenser w/ Brackets & Insulator Bushings
  • Liquid Line

  • O-Rings & hardware
  • All the tech support you need!

  *Hoses supplied with one end open, along with the corresponding fitting and cutting/crimping instructions. Your local hydraulic shop can provide crimping services, or we can provide the crimping service for an additional fee. Instructions for both options will be included.

DO I NEED TO BUY ANYTHING ELSE?

It really depends on the condition of other parts in the a/c system.  Any functional part in the air-conditioning system that contains refrigerant within it that is to be reused, must be flushed clean to prevent contamination of newly replaced parts to insure that they are clean and free of contaminants.  This includes parts such as the evaporator and the a/c valves.   Doing this will help insure for a reliable, long-lasting system.  Also, if converting to 134a, your POA valve will need to be calibrated for use with 134a, or replaced with a POA Eliminator Valve.

Products specifications
Model GTO
Model LEMANS
Model TEMPEST
Model GRAND PRIX
Years 68
Years 69
Years 70
Years 71
Category UPGRADE KITS
Category COMPRESSORS & PARTS
Category COMPRESSOR MOUNTING
Category HOSES, FITTINGS & LINES
Category FILTER-DRIERS & ACCUMULATORS
Category CONDENSERS & PARTS
Manufacturer PONTIAC

CONVERTING GENERAL MOTORS CARS

TO 134a

Until 1995, most cars with air conditioning used R-12 Freon refrigerant that is said to have a negative side effect of damaging the ozone layer and is no longer produced in most countries. since then, the industry standard has been R134a, which is an efficient replacement.  Contrary to popular belief, most cars originally equipped with R-12 can be converted to 134a and still keep you just as cool.

 

1955-61 Models with Hot Gas Valve (aka By Pass or Hot Gas By Pass Valve)

The Hot Gas Valve is most often found mounted to the compressor, though some cars have it mounted back near the evaporator. The front half of it looks like a bullet. (Click here for a typical photo)

Minimum Requirements

  • Change or restore the filter-drier.
  • Drain the compressor oil and recharge with 134a compatible oil. (PAG or Ester Oil)
  • Insure that the system is clean and free of contaminants (Depending on component condition, this may be a simple matter of blowing out with compressed air or liquid flushing with an air-conditioning flushing agent)
  • Replace or restore all rubber hoses with barrier hose.
  • Rebuild hot gas valve.
  • Install 134a charge port adapters.
  • Charge with 134a between 70-80% of the original R12 charge amount. Note: Hot gas valve will need to be adjusted during the charging process to properly adjust the low side by-pass pressure to 20psi.
  • Replace any o-rings with 134a compatible.

Recommended:

  • Install hi/lo pressure switch

HELPFUL HINTS

  • Ignore the sight-glass. A properly charged 134a system will likely show bubbles in the sight-glass.
  • Typical 134a charge rate will be approximately 70-80% of the factory R12 charge amount.

 

1962-66 Models with Suction Throttling Valve (aka STV)

The suction throttling valve is installed on the evaporator, near the firewall.(Click here for a typical photo)

Minimum Requirements

  • Change or restore the filter-drier.
  • Drain the compressor oil and recharge with 134a compatible oil. (PAG or Ester Oil)
  • Insure that the system is clean and free of contaminants (Depending on component condition, this may be a simple matter of blowing out with compressed air or liquid flushing with an air-conditioning flushing agent)
  • Replace or restore all rubber hoses with barrier hose.
  • Rebuild suction throttling valve.
  • Install 134a charge port adapters.
  • Charge with 134a between 70-80% of the original R12 charge amount. Note: Suction throttling valve will need to be adjusted during the charging process to properly adjust the low side by-pass pressure to 20psi.
  • Replace any o-rings with 134a compatible.

Recommended:

  • Install hi/lo pressure switch

HELPFUL HINTS

  • Ignore the sight-glass. A properly charged 134a system will likely show bubbles in the sight-glass.
  • Typical 134a charge rate will be approximately 70-80% of the factory R12 charge amount.

 

1966-73 Models with POA Valve

The POA Valve is installed on the evaporator, near the firewall. (Click here for a typical photo)

Minimum Requirements

  • Change or restore the filter-drier.
  • Drain the compressor oil and recharge with 134a compatible oil. (PAG or Ester Oil)
  • Insure that the system is clean and free of contaminants (Depending on component condition, this may be a simple matter of blowing out with compressed air or liquid flushing with an air-conditioning flushing agent)
  • Replace or restore all rubber hoses with barrier hose.
  • Install 134a charge port adapters.
  • Have POA valve recalibrated/rebuilt for 134a, or replaced with a POA Delete Kit
  • Charge with 134a between 70-80% of the original R12 charge amount.
  • Replace any o-rings with 134a compatible.

Recommended:

  • Install hi/lo pressure switch

HELPFUL HINTS

  • Ignore the sight-glass. A properly charged 134a system will likely show bubbles in the sight-glass.
  • Typical 134a charge rate will be approximately 70-80% of the factory R12 charge amount.

 

1973-76 Models with VIR

The VIR is installed on the evaporator, near the firewall. (Click here for a typical photo)

Minimum Requirements

  • Change desiccant in VIR.
  • Drain the compressor oil and recharge with 134a compatible oil. (PAG or Ester Oil)
  • Insure that the system is clean and free of contaminants (Depending on component condition, this may be a simple matter of blowing out with compressed air or liquid flushing with an air-conditioning flushing agent)
  • Replace or restore all rubber hoses with barrier hose.
  • Install 134a charge port adapters.
  • Charge with 134a between 70-80% of the original R12 charge amount.
  • Replace any o-rings with 134a compatible.

Recommended:

  • Install hi/lo pressure switch
  • Install our VIR Eliminator (strongly recommended when converting to 134a), purchase a rebuilt VIR or let us rebuild yours.

HELPFUL HINTS

  • Ignore the sight-glass. A properly charged 134a system will likely show bubbles in the sight-glass.
  • Typical 134a charge rate will be approximately 70-80% of the factory R12 charge amount.

 

1977-Newer Models with Accumulator

The accumulator is most often installed on the evaporator, near the firewall. (Click here for a typical photo)

Minimum Requirements

  • Change or restore the accumulator.
  • Drain the compressor oil and recharge with 134a compatible oil. (PAG or Ester Oil)
  • Insure that the system is clean and free of contaminants (Depending on component condition, this may be a simple matter of blowing out with compressed air or liquid flushing with an air-conditioning flushing agent)
  • Replace or restore all rubber hoses with barrier hose.
  • Install 134a charge port adapters.
  • Charge with 134a between 70-80% of the original R12 charge amount.
  • Replace any o-rings with 134a compatible.

Recommended:

  • Install hi/lo pressure switch
  • Upgrade the standard orifice-tube to a variable orifice tube.

HELPFUL HINTS

  • Ignore the sight-glass. A properly charged 134a system will likely show bubbles in the sight-glass.
  • Typical 134a charge rate will be approximately 70-80% of the factory R12 charge amount.
Products specifications
Model GTO
Model LEMANS
Model TEMPEST
Model GRAND PRIX
Years 68
Years 69
Years 70
Years 71
Category UPGRADE KITS
Category COMPRESSORS & PARTS
Category COMPRESSOR MOUNTING
Category HOSES, FITTINGS & LINES
Category FILTER-DRIERS & ACCUMULATORS
Category CONDENSERS & PARTS
Manufacturer PONTIAC
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