The Enginetech ES633 is a replacement hydraulic engine camshaft for 1962-1984 Buick/Chevrolet/GMC 3.2L/3.8L/4.1L engines.
Important Notes
- Engines without integral intake manifold.
- Heavy duty.
Camshaft Specifications
| Part Number | ES633 |
| Camshaft Type | Hydraulic |
| Duration @ .050" Intake | 172 degrees |
| Duration @ .050" Exhaust | 172 degrees |
| Valve Lift Intake | .387" |
| Valve Lift Exhaust | .387" |
| Lobe Lift | .221" |
| Cross-References | Elgin:E-663-S, Melling:CCS-18, Melling:CCS-7, FEL-PRO:CS-633, MAHLE:229-1394 |
Vehicle Fitment
- 1962-1967 Chevrolet Chevy II 3.2L 194ci I6 OHV
- 1963, 1965 Chevrolet Bel Air 3.8L 230ci I6 OHV
- 1963-1965 Chevrolet Biscayne 3.8L 230ci I6 OHV
- 1963-1965 Chevrolet C10 Panel 3.8L 230ci I6
- 1963-1965 Chevrolet C20 Pickup 3.8L 230ci I6 OHV
- 1963-1965 Chevrolet C30 Panel 3.8L 230ci I6
- 1963-1965 Chevrolet C30 Pickup 3.8L 230ci I6 OHV
- 1963-1965 Chevrolet Impala 3.8L 230ci I6 OHV
- 1963-1965 Chevrolet K20 Pickup 3.8L 230ci I6 OHV
- 1963-1965 GMC 1500 Series 3.8L 230ci I6 OHV
- 1963-1965 GMC 2500 Series 3.8L 230ci I6 OHV
- 1963-1965 GMC 3000 3.8L 230ci I6 OHV
- 1963-1965 GMC 3500 3.8L 230ci I6 OHV
- 1963-1965 GMC PB2500 Series 3.8L 230ci I6 OHV
- 1963-1966 Chevrolet Suburban 3.8L 230ci I6 OHV
- 1963-1966 GMC G1000 Series 3.2L 194ci I6 OHV
- 1963-1966 GMC Suburban 3.8L 230ci I6 OHV
- 1963-1969 Chevrolet C10 Pickup 3.8L 230ci I6 OHV
- 1963-1969 Chevrolet K10 Pickup 3.8L 230ci I6 OHV
- 1964-1965 Chevrolet Impala 3.8L 230ci I6
- 1964-1965 GMC I1000 3.8L 230ci I6 OHV
- 1964-1966 Chevrolet Chevelle 3.2L 194ci I6 OHV
- 1964-1966 Chevrolet Chevy II 3.8L 230ci I6
- 1964-1966 Chevrolet El Camino 3.2L 194ci I6 OHV
- 1964-1966 GMC G1000 Series 3.8L 230ci I6 OHV
- 1964-1966, 1968 Chevrolet Chevy II 3.8L 230ci I6 OHV
- 1964-1967 Chevrolet El Camino 3.8L 230ci I6 OHV
- 1965 GMC I1500 3.8L 230ci I6 OHV
- 1965 GMC I2500 3.8L 230ci I6 OHV
- 1966 Chevrolet Suburban 4.1L 250ci I6 OHV
- 1966 GMC 1000 4.1L 250ci I6 OHV
- 1966 GMC 1500 4.1L 250ci I6 OHV
- 1966 GMC 2500 4.1L 250ci I6 OHV
- 1966 GMC 3000 4.1L 250ci I6 OHV
- 1966 GMC 3500 4.1L 250ci I6 OHV
- 1966 GMC I1000 4.1L 250ci I6 OHV
- 1966 GMC I1500 4.1L 250ci I6 OHV
- 1966 GMC I2500 4.1L 250ci I6 OHV
- 1966 GMC I3500 4.1L 250ci I6 OHV
- 1966 GMC P1000 3.2L 194ci I6 OHV
- 1966 GMC P1000 3.8L 230ci I6 OHV
- 1966 GMC PB25 Series 4.1L 250ci I6 OHV
- 1966 GMC Suburban 4.1L 250ci I6 OHV
- 1966-1967 Chevrolet C20 Pickup 4.1L 250ci I6
- 1966-1967 Chevrolet C30 Pickup 4.1L 250ci I6 OHV
- 1966-1967 Chevrolet G10 Van 3.8L 230ci I6
- 1966-1967 Chevrolet K10 Pickup 4.1L 250ci I6 OHV
- 1966-1967 GMC LI3500 4.1L 250ci I6 OHV
- 1966-1971 Oldsmobile F85 4.1L 250ci I6 OHV
- 1966-1972 Chevrolet Biscayne 4.1L 250ci I6 OHV
- 1966-1973 Chevrolet Bel Air 4.1L 250ci I6 OHV
- 1966-1974 Chevrolet Impala 4.1L 250ci I6 OHV
- 1967 Chevrolet C10 Pickup 4.1L 250ci I6 OHV
- 1967 Chevrolet C10 Suburban 4.1L 250ci I6 OHV
- 1967 Chevrolet C20 Suburban 4.1L 250ci I6 OHV
- 1967 Chevrolet G20 Van 3.8L 230ci I6 OHV
- 1967 Chevrolet G20 Van 4.1L 250ci I6 OHV
- 1967 Chevrolet K10 Suburban 4.1L 250ci I6 OHV
- 1967 Chevrolet K20 Pickup 4.1L 250ci I6 OHV
- 1967 Chevrolet K20 Suburban 4.1L 250ci I6 OHV
- ...and 226 additional applications
Enginetech replacement camshafts are manufactured to OEM specifications
to restore proper valve timing, lift, and duration to worn or damaged engines. Each
camshaft is ground to original profiles and hardened for durability. Always install a
new timing set and replace all lifters when replacing a camshaft - reusing worn lifters
on a new cam lobe will cause rapid wear and premature failure. Use the specified follower
type (flat or roller) as noted. Enginetech offers complementary components including
timing sets, lifters, and complete engine rebuild kits. Verify part fitment by year,
make, model, and engine displacement before ordering.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, birth defects, or other reproductive harm.
