Cylinder Head GM Cast Iron

 Return to Ford Iron                                                                                                Next Page GM     

 

         When ordering a GM 2.R&U 2.5 GM5L head you will find that the casting nuber is the same on many differentheads.  The location of the boolt holes are different, as seen above, the length of the valves and the size of the valve stems ate different even on the same casting.  You and your customer must check and make sure you have ordered the correct head before installing it on the car.  

2.5 GM

                          2.5L R (552) Wide bolt Pattern R                                     HCG 2.5-552                             295.00          call for availability

                          2.5L R (702) Wide                                                            HCG 2.5-702                            295.00          call for availablity

                          2.5L-373U(373) Wide                                                       HCG 2.5-373U                         295.00          call for availabilit 

                          2.5L R & U (767) 1984-1986  (U) is narrow                    HCG 2.5-767 R                         295.00

                          2.5 LR & U (767) 1984-1986  (U) is narrow                    HCG 2.5-767 U                         295.00

                          2.5L R & U (808) 1987-1988 Shorter valver 8mm           HCG 2.5-808 R                         295.00

                          2.5L R & U (808) 1987-1988 Shorter valver 8mm           HCG 2.5-808 U                         295.00

                          2.5L R & U (808) 1990 up has 11/32 valve                      HCG 2.5-496 R                         295.00

                          2.5L R & U (808) 1990 up has 11/32 valve                      HCG 2.5-496 U                         295.00

                          2.5L R & U (655) 1988 8mm vakves                                HCG 2.5-655 R                         295.00

                          2.5L R & U (655) 1988 8mm vakves                                HCG 2.5-655 U                         295.00

               Note on rear wheel drive cars the core pluge are located on the other end and must be swapped.

Casting Ending IN
Engine Code R or U
Casting Number not Listed

   GM 3.8

          3.8L V6 Buick 182391402, 2136, 2261, 4781               HCG 3.8                                   $265.00          call for availability of casting #

One are Two
Casting Number
casting number not listed
     

GM 4.3    

 

 

     4.3L Chevrolet                                                               HAG 4.3                                   $265.00         call for availability of casting #

                     Casting # 245, 248, 268, 683, & 769 Early

                     Casting # 103, 890, 772, 181, 209, 256, 742, 113, & 064 Late

                     Casting # 53480, 55865, 051174, 1174, 88640, & 88840 Roller cam turbo

                     Note sum of the later modle have injection ports in head and the casting is the same number as those that do not.

Port Injection
Casting Early
Casting Number Late
Casting # Rollar Turbo
Your Casting Number not Listed

GM Vortec 5.7

           5.7L GM Vortec                                                            HCG 5.7-V                                $355.00            

                     Casting #10239906  #1258062  1996-2006

 

Casting Number

                          
      
audibmwChrydaefordgmhondahyundiaIsuzukiamazdanissonmitsubishisubarusuzukitoyotavwvolvo Guarantee Home