79 Buick Turbo engine out of a Riviera.

[grandnat_6]

1979 Buick Turbo 3.8 V6. Is this the same block or can it be used for the 84-87 models? Guy claims its out of a 79 Riviera......

Thanks,

Jim

 

[WarWagon]

Versus the hot air blocks or a '86+ 109 block the '79 block will have: 14 bolt oil pan and matching timing cover, higher deck height, rough lifter valley, different bolts on the main caps.
This '79 block can be used in a EFI build, just note the differences above.

 

[grandnat_6]

Ok, I didn’t realize the blocks were different between the 84-87 models. So basically using it as a direct replacement for an 84-87 is a no. How about for the 82/83 turbo cars? Would the 79 riviera be a direct replacement? Thanks!

 

[WarWagon]

Correct, the '79 block is compatible with blocks for '78-'83.