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WARNING: Products on this page can expose you to a chemical, which is known to the St ate of California to cause cancer or reproductive harm. **For more information go to www.P65Warnings.ca.gov**
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PICTURE #
10.  Bearing: Aluminum.         C685A  4 oz.
11.  Retainer            C7727  1 oz.
12.  Mating Washer (Seal)          C683  2 oz.
13.  Seal Assembly: Large aluminum assembly WITH CARBON SEAL. Our reproduction.   C682   4  oz.
  Replacement Carbon Seal: For our reproduction style aluminum housing (C682).  C7808   2 oz.
  Seal 0-Ring: This Viton O-ring can be used to replace the O-ring on  the old style “rebuildable” carbon seal (the type you can easily remove the center). Be sure  
    carbon seal surface is perfect.             C427V  1 oz.
14.  O-Ring: For edge of #13 seal.      VITON  C681V  1 oz.
15.  Large Snap Ring       C686          Discontinued
16.  Shaft Spacer: Often wears.     C685         2 oz.
17.  Impeller Shims      .010:  C2317        1 oz.         .015:  C2318  1 oz.
18.  Impeller – Aluminum: 1962–64, 150 HP  C1003  4 oz.      USED: CU1003  4 oz.
       1965–66, 180 HP  C1005  Discontinued   USED: CU1005  4 oz. 
  “E” Flow:   Discontinued   
19.  Special Nut Washer: Concave, original style.   C1001         Discontinued
20.  Nut – Impeller – Special Self-Locking: Never Reuse!   Original style with nylon insert: See "NOS" on website.
       New style: All metal.  C6AX  1 oz.
21.  Compressor Housing Gasket    C381          2 oz.
22.  Compressor Housing: USED ONLY – See page 350. State Year & Turbo.
  Gasket – Compressor Housing to Carburetor  C12          1 oz.
SHIM – Turbo Exhaust Housing
Often these shims are needed to put enough pressure against the heat shield so it won’t rub on the back of the turbine blades. One is usually enough – 2 can be stacked.
1962–66  C5705  4 oz.
B. Turbo Rebuild Kits
Before starting a rebuild of your Turbo, please see page 397. There are 3 ways to buy par ts for your Turbo rebuild: See also Shim above.
 
1 – INDIVIDUAL PARTS: See Section “A”, page 43
 
2 – “COMPLETE” REBUILD KITS: This is the cheapest way to get most of the parts for a major rebuild. See also C5A.
 
3 – POOR MAN’S REBUILD KIT: This rebuild kit is for a person to clean up his Turbo and just reseal lt.  It will include all new seals except for the  
    aluminum seal (with carbon ring) which may be OK. (I prefer to use the full kit when I rebuild a Turbo for the first time). If your aluminum seal is NOT OK your Turbo  
    may still push oil and you will have to start over.
“Complete” Rebuild Kits – Also See C5A
NOTE: The Full Turbo Rebuild Kits Have Been Discontinued from GM. We have an excellent replacement. We supply a new style aluminum seal housing that is machined to take 
the new replaceable type carbon seal (future rebuilds will be less expensive). Read your choices carefully. Also consider the outlet pipe gasket (#17, page 41).
C5: 1962–66 STOCK TURBO – Includes: Shaft sealing ring with plastic suppressor, turbine & exhaust housing gasket, bearing, snap 
ring, 6 bearing shims, mating washer, 2 impeller shims, complete new style aluminum oil seal with replaceable carbon seal, Viton oil 
seal “o-ring” & compression housing gasket. (Also see C5A)     C5        1 lb.
C7809: Same as C5 kit – Less just the new style aluminum seal housing (does include replaceable carbon seal). This kit 
should only be ordered if your turbo already has our new style aluminum housing. (Also see C5A)    C7809      8 oz.
C1599: Same as C5 Kit LESS bearing and bearing shims (Also see C5A).    C1599       8 oz.
Reseal Kit: For use only with turbo that has our new style aluminum seal housing. Does not include aluminum 
housing. Includes : replaceable carbon seal, seal “piston” ring with plastic suppressor, intake & exhaust gaskets.      
C2328       8 oz.
C5A: Buy along with above kits for all par ts suggested for a complete turbo rebuild. C5A includes: carb to turbo 
gasket (C12), turbo base gasket (C245), 2 chrome Intake to head gaskets (C12A), special nut (C6AX), turbo to chrome 
intake hose (C11), shaft spacer (C685), extra piston type seal with plastic suppressor (C6). Also consider #17, page 41.       
C5A      10 oz.  C5AOX (C5A less C685 & C6)       10 oz.
POOR MAN’S REBUlLD KIT: SEE DESCRIPTION ABOVE FOR USE.
Poor Man’s Kit includes: Large Viton “o”-ring for aluminum seal unit (C681V), piston style ring and plastic retainer (C6), special nut (C6AX), compressor housing gasket 
(C381), exhaust housing gasket to body (C382), Carb. to Turbo gasket (C12), inlet to Turbo square gasket (C245), and (C248 or C249) Turbo outlet gasket (depends on year), 
Turbo to intake rubber hose (C11).
      “POOR MAN’S KIT”: 1962–63 (flat outlet flange)     C1597  10 oz. 
    “POOR MAN’S KIT”: 1964–66 (takes large “donut” gasket)   C1598  10 oz.
HIGH HEAT ALUMINUM SPRAY PAINT: For use on Turbocharger exhaust housing.   C920  1 lb.    CAN’T SHIP BY AIR
Turbo Parts
HOW EASY SHOULD IT SPIN?
There are usually (3) things that keep a Turbo from spinning. (1) carbon build up behind the turbine or (2) the large clamp not tight enough or exhaust housing so worn that 
it can’t press hard enough against the heat shield to push it away from the turbine (see SHIM above) or (3) turbine bearing not shimmed correctly. Assuming all of these 
are okay (and the housing is in place) the turbine will not spin like a pinwheel. In fact, if you spin it as hard as you can with your finger, it probably will not do more than 
1–1½ revolutions. As long as it doesn’t seem to bind, it’s normal. But things can change when it is hot!
C381