The Enginetech ES677 is a replacement hydraulic engine camshaft for 1975-1982 Buick/Chevrolet/GMC 4.1L engines.
Important Notes
- Engines w/ integral intake manifold.
- Engines with integral intake manifold.
- Except heavy duty.
Camshaft Specifications
| Part Number | ES677 |
| Camshaft Type | Hydraulic |
| Duration @ .050" Intake | 172 degrees |
| Duration @ .050" Exhaust | 188 degrees |
| Valve Lift Intake | .387" |
| Valve Lift Exhaust | .405" |
| Lobe Lift | .231" |
| Cross-References | Elgin:E-729-S, Melling:CCS-26, FEL-PRO:CS-677, MAHLE:229-2270 |
Vehicle Fitment
- 1975 Buick Apollo 4.1L 250ci I6 OHV [VIN:D]
- 1975 Chevrolet C10 4.1L 250ci I6 OHV [VIN:Q]
- 1975 Chevrolet C10 Suburban 4.1L 250ci I6 OHV [VIN:Q]
- 1975 Chevrolet C20 4.1L 250ci I6 OHV [VIN:Q]
- 1975 Chevrolet C30 4.1L 250ci I6 OHV [VIN:Q]
- 1975 Chevrolet G10 4.1L 250ci I6 OHV [VIN:Q]
- 1975 Chevrolet G20 4.1L 250ci I6 OHV [VIN:Q]
- 1975 Chevrolet K10 4.1L 250ci I6 OHV [VIN:Q]
- 1975 Chevrolet K10 Suburban 4.1L 250ci I6 OHV [VIN:Q]
- 1975 Chevrolet K20 4.1L 250ci I6 OHV [VIN:Q]
- 1975 Chevrolet K5 Blazer 4.1L 250ci I6 OHV [VIN:Q]
- 1975 Chevrolet Malibu 4.1L 250ci I6
- 1975 GMC C15 4.1L 250ci I6 OHV [VIN:Q]
- 1975 GMC C15 Suburban 4.1L 250ci I6 OHV [VIN:Q]
- 1975 GMC G15 4.1L 250ci I6 OHV [VIN:Q]
- 1975 GMC Jimmy 4.1L 250ci I6 OHV [VIN:Q]
- 1975 GMC K15 4.1L 250ci I6 OHV [VIN:Q]
- 1975 GMC K15 Suburban 4.1L 250ci I6 OHV [VIN:Q]
- 1975 GMC K25 4.1L 250ci I6 OHV [VIN:Q]
- 1975-1976 Oldsmobile Cutlass 4.1L 250ci I6 OHV [VIN:D]
- 1975-1976 Oldsmobile Cutlass Supreme 4.1L 250ci I6 OHV [VIN:D]
- 1975-1976 Oldsmobile Omega 4.1L 250ci I6 OHV [VIN:D]
- 1975-1976 Pontiac Firebird 4.1L 250ci I6 OHV [VIN:D]
- 1975-1976 Pontiac Grand LeMans 4.1L 250ci I6 OHV [VIN:D]
- 1975-1976 Pontiac LeMans 4.1L 250ci I6 OHV [VIN:D]
- 1975-1976 Pontiac Ventura 4.1L 250ci I6 OHV [VIN:D]
- 1975-1977 Chevrolet Malibu 4.1L 250ci I6 OHV [VIN:D]
- 1975-1979 Chevrolet Nova 4.1L 250ci I6 OHV [VIN:D]
- 1976 Chevrolet K20 4.1L 250ci I6 OHV [VIN:D]
- 1976 GMC K25 4.1L 250ci I6 OHV [VIN:D]
- 1976, 1978-1979, 1981-1982 Chevrolet G30 4.1L 250ci I6 OHV [VIN:D]
- 1976, 1979 Chevrolet P30 4.1L 250ci I6 OHV [VIN:D]
- 1976, 1979-1982 Chevrolet G20 4.1L 250ci I6 OHV [VIN:D]
- 1976-1978 GMC C15 4.1L 250ci I6 OHV [VIN:D]
- 1976-1978 GMC C15 Suburban 4.1L 250ci I6 OHV [VIN:D]
- 1976-1978 GMC G15 4.1L 250ci I6 OHV [VIN:D]
- 1976-1978 GMC K15 4.1L 250ci I6 OHV [VIN:D]
- 1976-1978 GMC K15 Suburban 4.1L 250ci I6 OHV [VIN:D]
- 1976-1980 Chevrolet C10 Suburban 4.1L 250ci I6 OHV [VIN:D]
- 1976-1980 Chevrolet K10 Suburban 4.1L 250ci I6 OHV [VIN:D]
- 1976-1982 Chevrolet C10 4.1L 250ci I6 OHV [VIN:D]
- 1976-1982 Chevrolet C20 4.1L 250ci I6 OHV [VIN:D]
- 1976-1982 Chevrolet G10 4.1L 250ci I6 OHV [VIN:D]
- 1976-1982 Chevrolet K10 4.1L 250ci I6 OHV [VIN:D]
- 1976-1982 Chevrolet K5 Blazer 4.1L 250ci I6 OHV [VIN:D]
- 1976-1982 GMC Jimmy 4.1L 250ci I6 OHV [VIN:D]
- 1977-1978 GMC C25 4.1L 250ci I6 OHV [VIN:D]
- 1977-1979 Chevrolet Caprice 4.1L 250ci I6
- 1977-1979 Chevrolet Impala 4.1L 250ci I6 OHV [VIN:D]
- 1978 GMC C35 4.1L 250ci I6 OHV [VIN:D]
- 1978, 1980 Chevrolet C30 4.1L 250ci I6 OHV [VIN:D]
- 1979 Chevrolet C30 4.1L 250ci I6
- 1979-1980 GMC C1500 Suburban 4.1L 250ci I6 OHV [VIN:D]
- 1979-1980 GMC C3500 4.1L 250ci I6 OHV [VIN:D]
- 1979-1980 GMC K1500 Suburban 4.1L 250ci I6 OHV [VIN:D]
- 1979-1982 GMC C1500 4.1L 250ci I6 OHV [VIN:D]
- 1979-1982 GMC C2500 4.1L 250ci I6 OHV [VIN:D]
- 1979-1982 GMC G1500 4.1L 250ci I6 OHV [VIN:D]
- 1979-1982 GMC G2500 4.1L 250ci I6 OHV [VIN:D]
- 1979-1982 GMC K1500 4.1L 250ci I6 OHV [VIN:D]
- ...and 2 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.
