Since GM used both the 2.5L and 2.8L engines in many cars other than the Fiero, it is to be expected that the camshaft is also common to many cars. When replacing a camshaft we suggest new rather than used except in cases of expediency. Camshafts, including "hot" versions, are readily available from GM and aftermarket companies such as Crane and CompCams.
'84 2.5L Early: The early design camshaft has Z8F, Z8C, Z8H, Z8J, or Z8K located on the timing pointer. This cam does not use roller lifters.
Pontiac 6000 '84 2.5L Camaro '84 2.5L Chevy Celebrity '84 2.5L Buick Century '84 2.5L Olds Ciera '84 2.5L Chevy Citation '84 2.5L Firebird '84 2.5L Olds Omega '84 2.5L Pontiac Phoenix '84 2.5L Buick Skylark '84 2.5L
'84 2.5L Late and '85-88 2.5L: The late design has XJC located on the bell housing face of the cylinder block. The cam uses roller lifters.
Pontiac 6000 '85-89 2.5L Pontiac Astro '85-90 2.5L Chevy Blazer S10/GM Jimmy S15 '85-88 2.5L Camaro '85-88 2.5L Chevy Celebrity '85-89 2.5L Buick Century '85-89 2.5L Olds Ciera '85-89 2.5L Chevy Citation '85 2.5L Firebird '85-86 2.5L S10/S15/GM Sonoma '85-90 2.5L S10/S15/GM Sonoma '91 2.5L VIN "E" (8th digit) Pontiac Safari (GMC) '85-90 2.5L Buick Skylark '85 2.5L
'85-88 2.8L: The camshaft in the '88 Fiero is equipped with a fuel pump eccentric which is not used since the car has an electric fuel pump. The list below is for camshafts with the fuel pump eccentric. See the next list for camshafts without the eccentric.
Pontiac 6000 '83-86 2.8L H.O. VIN "Z" Pontiac 6000 '85-86 2.8L EFI Pontiac 6000 '87-89 2.8L Chevrolet Beretta '87-89 2.8L Chevy Blazer S10/GM Jimmy S15 '86-89 2.8L Camaro '85-89 2.8L Cavalier '85-89 2.8L Chevy Celebrity '84 2.8L H.O. VIN "Z" Chevy Celebrity '85-86 2.8L EFI Chevy Celebrity '87-89 2.8L Buick Century '84 2.8L H.O. VIN "Z" Buick Century '85 2.8L EFI Buick Century '87-89 2.8L Olds Ciera '86 2.8L EFI Olds Ciera '87-89 2.8L Cadillac Cimarron '85-88 2.8L Chevy Citation '81-84 2.8L H.O. VIN "Z" Chevy Citation '85 2.8L EFI Chevy Corsica '87-89 2.8L Olds Cutlass '88-89 2.8L Olds Cutlass '89 3.1L Firebird '83-84 2.8L H.O. VIN "L" Firebird '85-89 2.8L Olds Firenza '85-87 2.8L Pontiac Grand Prix '88-89 2.8L Olds Omega '82-84 2.8L H.O. VIN "Z" Pontiac Phoenix '82-84 2.8L H.O. VIN "Z" Olds Regal '88-89 2.8L S10/S15/GM Sonoma '86-89 2.8L Buick Skylark '82-84 2.8L H.O. VIN "Z" Buick Skylark '85 2.8L EFI Pontiac Tempest '87-89 2.8L Isuzu Trooper '89 2.8L
'85-88 2.8L: The camshaft in the '88 Fiero is equipped with a fuel pump eccentric which is not used since the car has an electric fuel pump. Camshafts without the eccentric work fine in the '88 Fiero. The list below includes camshafts without the eccentric.
Pontiac 6000 '90-91 3.1L Chevrolet Beretta '90-93 3.1L Camaro '90-92 3.1L Camaro '93-95 3.4L Cavalier '90-94 3.1L Chevy Celebrity '90 3.1L Chevy Corsica '90-93 3.1L Olds Cutlass '90-92 3.1L Olds Cutlass '93 3.1L VIN "T" (8th digit) Firebird '90-92 3.1L Firebird '93-95 3.4L Pontiac Grand Prix '90-93 3.1L Chevy Lumina Car '90-94 3.1L Olds Regal '90-93 3.1L S10/S15/GM Sonoma '90-93 2.8L Pontiac Sunbird '91-94 3.1L Pontiac Tempest '90-93 3.1L Isuzu Trooper '90-91 2.8L