COMP Cams Camshaft P8 287T H-107 T Thumper

Mutha' Thumpr 235/249 Hydraulic Flat Cam for Pontiac 265-455. High performance street/strip, needs 9:1 compression, 2500+ stall, intake, Gears and headers, rough idle. High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle. Pontiac 265-455 V8

The COMP Cams P8 287T H-107 T Thumper hydraulic flat camshaft is designed for high-performance street and strip applications on Pontiac V8 engines ranging from 265 to 455 cubic inches. This camshaft delivers a rough idle and is ideal for enthusiasts seeking increased horsepower and torque. It requires a minimum of 9:1 compression ratio and works best with a stall converter of 2500 RPM or higher, along with upgraded intake, gears, and headers to maximize performance. Crafted for specific vintage Pontiac Firebird models from 1977 to 1981, this camshaft enhances acceleration and overall engine responsiveness.

Constructed with precision, the COMP Cams Thumper camshaft features a duration and lift profile optimized for aggressive street driving and strip use. Its hydraulic flat design reduces maintenance needs while providing consistent performance. This part is not carb-legal and requires carburetor acknowledgment during installation, ensuring compliance with certain regulations. The camshaft's robust construction and performance characteristics make it suitable for high-performance builds aimed at enthusiasts seeking a noticeable upgrade in engine sound and power output.

Installation of the COMP Cams P8 287T H-107 T Thumper should be performed by qualified technicians familiar with Pontiac engine modifications. Proper setup and supporting modifications will ensure optimal results and engine longevity. This camshaft is a critical component for those aiming to improve their vehicle's performance on the street and strip, delivering a distinctive rough idle and strong power gains across the rev range.

Features:

• Designed for Pontiac 265-455 V8 engines

• High-performance street/strip camshaft

• Hydraulic flat cam design for durability and low maintenance

• Requires 9:1 compression ratio for optimal performance

• Suitable for 2500+ RPM stall converters

• Provides rough idle with increased horsepower and torque

• Compatible with aftermarket intake, gears, and headers

• Fits Pontiac Firebird models from 1977 to 1981

• Not carb-legal; requires carburetor acknowledgment

Fitment:
Buick Centurion Base 1972
Buick Century Base 1980
Buick Century Base 1981
Buick Century Custom 1979
Buick Century Estate 1980
Buick Century Estate 1981
Buick Century Limited 1979
Buick Century Limited 1980
Buick Century Limited 1981
Buick Century Special 1979
Buick Century Sport 1979
Buick Century Sport 1980
Buick Century Sport 1981
Buick Electra 225 1974
Buick Electra 225 Custom 1974
Buick Electra 225 Limited 1974
Buick Electra Estate Wagon 1980
Buick Estate Wagon Base 1974
Buick Estate Wagon Base 1980
Buick LeSabre Base 1974
Buick LeSabre Base 1977
Buick LeSabre Base 1978
Buick LeSabre Base 1979
Buick LeSabre Base 1980
Buick LeSabre Custom 1975
Buick LeSabre Custom 1977
Buick LeSabre Custom 1978
Buick LeSabre Custom Sport 1977
Buick LeSabre Limited 1979
Buick LeSabre Limited 1980
Buick LeSabre Luxus 1974
Buick Regal Base 1979
Buick Regal Base 1980
Buick Regal Base 1981
Buick Regal Limited 1979
Buick Regal Limited 1980
Buick Regal Limited 1981
Buick Riviera Base 1974
Buick Skylark Base 1977
Buick Skylark S 1977
Buick Skylark SR 1977
Oldsmobile 98 Luxury 1975
Oldsmobile 98 Regency 1975
Oldsmobile Custom Cruiser Base 1975
Oldsmobile Custom Cruiser Panel 1975
Oldsmobile Cutlass Base 1974
Oldsmobile Cutlass S 1974
Oldsmobile Cutlass Supreme Base 1974
Oldsmobile Cutlass Supreme Cruiser 1974
Oldsmobile Delta 88 Base 1979
Oldsmobile Delta 88 Royale 1979
Oldsmobile Toronado Base 1972
Oldsmobile Toronado Base 1973
Oldsmobile Toronado Base 1974
Oldsmobile Toronado Brougham 1972
Oldsmobile Toronado Brougham 1973
Oldsmobile Toronado Brougham 1974
Oldsmobile Toronado Brougham 1975
Oldsmobile Toronado Custom 1975
Pontiac Bonneville Base 1957
Pontiac Bonneville Base 1958
Pontiac Bonneville Base 1959
Pontiac Bonneville Base 1960
Pontiac Bonneville Base 1961
Pontiac Bonneville Base 1962
Pontiac Bonneville Base 1963
Pontiac Bonneville Base 1964
Pontiac Bonneville Base 1965
Pontiac Bonneville Base 1966
Pontiac Bonneville Base 1967
Pontiac Bonneville Base 1968
Pontiac Bonneville Base 1969
Pontiac Bonneville Base 1970
Pontiac Bonneville Base 1971
Pontiac Bonneville Base 1972
Pontiac Bonneville Base 1973
Pontiac Bonneville Base 1974
Pontiac Bonneville Base 1975
Pontiac Bonneville Base 1976
Pontiac Bonneville Base 1977
Pontiac Bonneville Base 1978
Pontiac Bonneville Base 1979
Pontiac Bonneville Base 1980
Pontiac Bonneville Base 1981
Pontiac Bonneville Brougham 1976
Pontiac Bonneville Brougham 1977
Pontiac Bonneville Brougham 1978
Pontiac Bonneville Brougham 1979
Pontiac Bonneville Brougham 1980
Pontiac Bonneville Brougham 1981
Pontiac Bonneville Custom 1959
Pontiac Bonneville Custom 1960
Pontiac Bonneville Custom 1961
Pontiac Bonneville Custom 1962
Pontiac Bonneville Safari 1959
Pontiac Bonneville Safari 1960
Pontiac Bonneville Safari 1961
Pontiac Bonneville Safari 1962
Pontiac Bonneville Safari 1963
Pontiac Bonneville Safari 1964
Pontiac Bonneville Safari 1965
Pontiac Bonneville Safari 1966
Pontiac Bonneville Safari 1967
Pontiac Bonneville Safari 1968
Pontiac Bonneville Safari 1969
Pontiac Bonneville Safari 1970
Pontiac Bonneville Safari 1978
Pontiac Bonneville Safari 1979
Pontiac Bonneville Safari 1980
Pontiac Catalina 2+2 1964
Pontiac Catalina 2+2 1965
Pontiac Catalina 2+2 1966
Pontiac Catalina 2+2 1967
Pontiac Catalina Base 1955
Pontiac Catalina Base 1956
Pontiac Catalina Base 1957
Pontiac Catalina Base 1958
Pontiac Catalina Base 1959
Pontiac Catalina Base 1960
Pontiac Catalina Base 1961
Pontiac Catalina Base 1962
Pontiac Catalina Base 1963
Pontiac Catalina Base 1964
Pontiac Catalina Base 1965
Pontiac Catalina Base 1966
Pontiac Catalina Base 1967
Pontiac Catalina Base 1968
Pontiac Catalina Base 1969
Pontiac Catalina Base 1970
Pontiac Catalina Base 1971
Pontiac Catalina Base 1972
Pontiac Catalina Base 1973
Pontiac Catalina Base 1974
Pontiac Catalina Base 1975
Pontiac Catalina Base 1976
Pontiac Catalina Base 1977
Pontiac Catalina Base 1978
Pontiac Catalina Base 1979
Pontiac Catalina Base 1980
Pontiac Catalina Base 1981
Pontiac Catalina Brougham 1971
Pontiac Catalina Brougham 1972
Pontiac Catalina Safari 1959
Pontiac Catalina Safari 1960
Pontiac Catalina Safari 1961
Pontiac Catalina Safari 1962
Pontiac Catalina Safari 1963
Pontiac Catalina Safari 1964
Pontiac Catalina Safari 1965
Pontiac Catalina Safari 1966
Pontiac Catalina Safari 1967
Pontiac Catalina Safari 1968
Pontiac Catalina Safari 1969
Pontiac Catalina Safari 1970
Pontiac Catalina Safari 1971
Pontiac Catalina Safari 1972
Pontiac Catalina Safari 1973
Pontiac Catalina Safari 1974
Pontiac Catalina Safari 1975
Pontiac Catalina Safari 1976
Pontiac Catalina Safari 1977
Pontiac Catalina Safari 1978
Pontiac Catalina Safari 1979
Pontiac Catalina Safari 1980
Pontiac Catalina Ventura 1962
Pontiac Catalina Ventura 1963
Pontiac Catalina Ventura 1964
Pontiac Catalina Ventura 1965
Pontiac Catalina Ventura 1966
Pontiac Catalina Ventura 1967
Pontiac Catalina Ventura 1968
Pontiac Catalina Ventura 1969
Pontiac Catalina Ventura 1970
Pontiac Chieftain Base 1955
Pontiac Chieftain Base 1956
Pontiac Chieftain Base 1957
Pontiac Chieftain Base 1958
Pontiac Chieftain Custom Safari 1957
Pontiac Chieftain Custom Safari Transcontinental 1957
Pontiac Chieftain Safari 1955
Pontiac Chieftain Safari 1958
Pontiac Executive Base 1967
Pontiac Executive Base 1968
Pontiac Executive Base 1969
Pontiac Executive Base 1970
Pontiac Executive Safari 1967
Pontiac Executive Safari 1968
Pontiac Executive Safari 1969
Pontiac Executive Safari 1970
Pontiac Firebird 350 1968
Pontiac Firebird 350 1969
Pontiac Firebird 350 HO 1969
Pontiac Firebird 400 1967
Pontiac Firebird 400 1968
Pontiac Firebird 400 1969
Pontiac Firebird Base 1967
Pontiac Firebird Base 1968
Pontiac Firebird Base 1969
Pontiac Firebird Base 1970
Pontiac Firebird Base 1971
Pontiac Firebird Base 1972
Pontiac Firebird Base 1973
Pontiac Firebird Base 1974
Pontiac Firebird Base 1975
Pontiac Firebird Base 1976
Pontiac Firebird Base 1977
Pontiac Firebird Base 1979
Pontiac Firebird Base 1980
Pontiac Firebird Base 1981
Pontiac Firebird Esprit 1970
Pontiac Firebird Esprit 1971
Pontiac Firebird Esprit 1972
Pontiac Firebird Esprit 1973
Pontiac Firebird Esprit 1974
Pontiac Firebird Esprit 1975
Pontiac Firebird Esprit 1976
Pontiac Firebird Esprit 1977
Pontiac Firebird Esprit 1979
Pontiac Firebird Esprit 1980
Pontiac Firebird Esprit 1981
Pontiac Firebird Formula 1970
Pontiac Firebird Formula 1971
Pontiac Firebird Formula 1972
Pontiac Firebird Formula 1973
Pontiac Firebird Formula 1974
Pontiac Firebird Formula 1975
Pontiac Firebird Formula 1976
Pontiac Firebird Formula 1977
Pontiac Firebird Formula 1978
Pontiac Firebird Formula 1979
Pontiac Firebird Formula 1980
Pontiac Firebird Formula 1981
Pontiac Firebird HO 1967
Pontiac Firebird Trans Am 1969
Pontiac Firebird Trans Am 1970
Pontiac Firebird Trans Am 1971
Pontiac Firebird Trans Am 1972
Pontiac Firebird Trans Am 1973
Pontiac Firebird Trans Am 1974
Pontiac Firebird Trans Am 1975
Pontiac Firebird Trans Am 1976
Pontiac Firebird Trans Am 1977
Pontiac Firebird Trans Am 1978
Pontiac Firebird Trans Am 1979
Pontiac Firebird Trans Am 1980
Pontiac Firebird Trans Am 1981
Pontiac Grand Am Base 1973
Pontiac Grand Am Base 1974
Pontiac Grand Am Base 1975
Pontiac Grand Am Base 1978
Pontiac Grand Am Base 1979
Pontiac Grand Am Base 1980
Pontiac Grand LeMans Base 1975
Pontiac Grand LeMans Base 1976
Pontiac Grand LeMans Base 1977
Pontiac Grand LeMans Base 1979
Pontiac Grand LeMans Base 1980
Pontiac Grand LeMans Base 1981
Pontiac Grand LeMans Safari 1975
Pontiac Grand LeMans Safari 1977
Pontiac Grand LeMans Safari 1979
Pontiac Grand LeMans Safari 1980
Pontiac Grand LeMans Safari 1981
Pontiac Grand Prix Base 1962
Pontiac Grand Prix Base 1963
Pontiac Grand Prix Base 1964
Pontiac Grand Prix Base 1965
Pontiac Grand Prix Base 1966
Pontiac Grand Prix Base 1967
Pontiac Grand Prix Base 1968
Pontiac Grand Prix Base 1969
Pontiac Grand Prix Base 1970
Pontiac Grand Prix Base 1971
Pontiac Grand Prix Base 1972
Pontiac Grand Prix Base 1973
Pontiac Grand Prix Base 1974
Pontiac Grand Prix Base 1976
Pontiac Grand Prix Base 1977
Pontiac Grand Prix Base 1978
Pontiac Grand Prix Base 1979
Pontiac Grand Prix Base 1980
Pontiac Grand Prix Base 1981
Pontiac Grand Prix Brougham 1981
Pontiac Grand Prix LJ 1975
Pontiac Grand Prix LJ 1977
Pontiac Grand Prix LJ 1978
Pontiac Grand Prix LJ 1979
Pontiac Grand Prix LJ 1980
Pontiac Grand Prix LJ 1981
Pontiac Grand Prix SJ 1975
Pontiac Grand Prix SJ 1976
Pontiac Grand Prix SJ 1977
Pontiac Grand Prix SJ 1978
Pontiac Grand Prix SJ 1979
Pontiac Grand Prix SJ 1980
Pontiac Grand Safari Base 1971
Pontiac Grand Safari Base 1972
Pontiac Grand Safari Base 1973
Pontiac Grand Safari Base 1974
Pontiac Grand Safari Base 1975
Pontiac Grand Safari Base 1976
Pontiac Grand Safari Base 1977
Pontiac Grand Safari Base 1978
Pontiac Grandville Base 1971
Pontiac Grandville Base 1972
Pontiac Grandville Base 1973
Pontiac Grandville Base 1974
Pontiac Grandville Brougham 1975
Pontiac GTO Base 1964
Pontiac GTO Base 1965
Pontiac GTO Base 1966
Pontiac GTO Base 1967
Pontiac GTO Base 1968
Pontiac GTO Base 1969
Pontiac GTO Base 1970
Pontiac GTO Base 1971
Pontiac GTO Base 1972
Pontiac GTO Base 1973
Pontiac GTO The Judge 1970
Pontiac GTO The Judge 1971
Pontiac LeMans Base 1963
Pontiac LeMans Base 1964
Pontiac LeMans Base 1965
Pontiac LeMans Base 1966
Pontiac LeMans Base 1967
Pontiac LeMans Base 1968
Pontiac LeMans Base 1969
Pontiac LeMans Base 1970
Pontiac LeMans Base 1971
Pontiac LeMans Base 1972
Pontiac LeMans Base 1973
Pontiac LeMans Base 1974
Pontiac LeMans Base 1975
Pontiac LeMans Base 1976
Pontiac LeMans Base 1977
Pontiac LeMans Base 1979
Pontiac LeMans Base 1980
Pontiac LeMans Base 1981
Pontiac LeMans Luxury 1972
Pontiac LeMans Luxury 1973
Pontiac LeMans Luxury 1974
Pontiac LeMans Safari 1969
Pontiac LeMans Safari 1970
Pontiac LeMans Safari 1973
Pontiac LeMans Safari 1974
Pontiac LeMans Safari 1975
Pontiac LeMans Safari 1977
Pontiac LeMans Safari 1979
Pontiac LeMans Safari 1980
Pontiac LeMans Safari 1981
Pontiac LeMans Safari Luxury 1974
Pontiac LeMans Sport 1970
Pontiac LeMans Sport 1971
Pontiac LeMans Sport 1972
Pontiac LeMans Sport 1973
Pontiac LeMans Sport 1974
Pontiac LeMans Sport 1975
Pontiac LeMans Sport 1976
Pontiac LeMans Sport 1977
Pontiac LeMans T37 1971
Pontiac Star Chief Base 1955
Pontiac Star Chief Base 1956
Pontiac Star Chief Base 1957
Pontiac Star Chief Base 1958
Pontiac Star Chief Base 1959
Pontiac Star Chief Base 1960
Pontiac Star Chief Base 1961
Pontiac Star Chief Base 1962
Pontiac Star Chief Base 1963
Pontiac Star Chief Base 1964
Pontiac Star Chief Base 1965
Pontiac Star Chief Base 1966
Pontiac Star Chief Custom 1955
Pontiac Star Chief Custom 1956
Pontiac Star Chief Custom 1957
Pontiac Star Chief Custom Safari 1958
Pontiac Star Chief Executive 1966
Pontiac Star Chief Super Deluxe 1958
Pontiac Super Chief Base 1957
Pontiac Super Chief Base 1958
Pontiac Tempest Base 1961
Pontiac Tempest Base 1962
Pontiac Tempest Base 1963
Pontiac Tempest Base 1964
Pontiac Tempest Base 1965
Pontiac Tempest Base 1966
Pontiac Tempest Base 1967
Pontiac Tempest Base 1968
Pontiac Tempest Base 1969
Pontiac Tempest Base 1970
Pontiac Tempest Custom 1964
Pontiac Tempest Custom 1965
Pontiac Tempest Custom 1968
Pontiac Tempest Custom 1969
Pontiac Tempest LeMans 1961
Pontiac Tempest LeMans 1962
Pontiac Tempest Safari 1961
Pontiac Tempest Safari 1963
Pontiac Tempest Safari 1964
Pontiac Tempest Safari 1965
Pontiac Tempest Safari 1966
Pontiac Tempest Safari 1967
Pontiac Tempest Safari 1968
Pontiac Tempest Safari 1969
Pontiac Ventura Base 1960
Pontiac Ventura Base 1961
Pontiac Ventura Base 1971
Pontiac Ventura Base 1972
Pontiac Ventura Base 1973
Pontiac Ventura Base 1974
Pontiac Ventura Base 1975
Pontiac Ventura Base 1977
Pontiac Ventura Custom 1973
Pontiac Ventura Custom 1974
Pontiac Ventura Custom 1975
Pontiac Ventura GTO 1974
Pontiac Ventura S 1975
Pontiac Ventura SJ 1975
Pontiac Ventura SJ 1977