Competition Cams 11-602-4 BBC Big Mutha Thumpr Camshaft Fits select: 1973-1989 CHEVROLET P30, 1973-1986 CHEVROLET C30
Comp Cams

Competition Cams 11-602-4 BBC Big Mutha Thumpr Camshaft Fits select: 1973-1989 CHEVROLET P30, 1973-1986 CHEVROLET C30

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Key item features

  • Great sound (early exhaust opening and more overlap)
  • Great power (new lobe designs give great area and air flow)
  • Great mid-range response (early intake closing traps more air)
  • Minimal engine vacuum - requires mods for any vacuum accessories such as power brakes
  • Designed for use only with valve train upgrades including COMP Cams® Beehive™ Valve Springs and roller rockers
  • Works best with looser converters, more rear end gear and other performance engine modifications


Fits Select:
1973-1989 CHEVROLET P30 8 Cyl 7.4 L
1973-1986 CHEVROLET C30 8 Cyl 7.4 L
1972 CHEVROLET MONTE CARLO 8 Cyl 6.6 L
1989 CHEVROLET V3500 K3500 8 Cyl 7.4 L
1972-1974 CHEVROLET CORVETTE 8 Cyl 7.4 L
1987-1988 CHEVROLET R30 8 Cyl 7.4 L
1989 CHEVROLET R3500 8 Cyl 7.4 L
1972 CHEVROLET MALIBU 8 Cyl 6.6 L
1973-1974,1976,1978-1979 CHEVROLET C10 8 Cyl 7.4 L
1973-1986 CHEVROLET C20 8 Cyl 7.4 L
1986 CHEVROLET D30 8 Cyl 7.4 L
1973-1975,1981,1983-1985,1987-1989 GMC VALUE VAN P3500 8 Cyl 7.4 L
1984 CHEVROLET K30 MILITARY POSTAL UNIT 8 Cyl 7.4 L
1973-1986 GMC C3500 8 Cyl 7.4 L
1987-1988 CHEVROLET V30 8 Cyl 7.4 L
1972 CHEVROLET IMPALA 8 Cyl 6.6 L
1980-1983,1985 CHEVROLET K30 8 Cyl 7.4 L
1987-1989 GMC R35 CONVENTIONAL 8 Cyl 7.4 L
1972 CHEVROLET CAPRICE 8 Cyl 6.6 L
1973-1976 CHEVROLET CAPRICE CLASSIC 8 Cyl 7.4 L
1977,1980 CHEVROLET BLAZER 8 Cyl 7.4 L
1981-1986 CHEVROLET SUBURBAN C2 8 Cyl 7.4 L
1973-1986 GMC C2500 8 Cyl 7.4 L
1973-1975 CHEVROLET MONTE CARLO 8 Cyl 7.4 L
1981-1986 GMC K3500 8 Cyl 7.4 L
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About this item

Product details

Specifications

Warranty

Compatible vehicles

YearMakeModelSubmodelEngine
1996GMCP3500BaseV8 7.4L
1989GMCV3500BaseV8 7.4L
1989GMCV3500High SierraV8 7.4L
1989GMCV3500Sierra ClassicV8 7.4L
1989GMCR3500BaseV8 7.4L
1989GMCR3500High SierraV8 7.4L
1989GMCR3500Sierra ClassicV8 7.4L
1989GMCP3500BaseV8 7.4L
1989GMCP3500Value VanV8 7.4L
1988GMCV3500BaseV8 7.4L
1988GMCV3500High SierraV8 7.4L
1988GMCV3500Sierra ClassicV8 7.4L
1988GMCR3500BaseV8 7.4L
1988GMCR3500High SierraV8 7.4L
1988GMCR3500Sierra ClassicV8 7.4L
1988GMCP3500BaseV8 7.4L
1988GMCP3500Value VanV8 7.4L
1987GMCV3500BaseV8 7.4L
1987GMCV3500High SierraV8 7.4L
1987GMCV3500Sierra ClassicV8 7.4L
1987GMCR3500BaseV8 7.4L
1987GMCR3500High SierraV8 7.4L
1987GMCR3500Sierra ClassicV8 7.4L
1987GMCP3500BaseV8 7.4L
1987GMCP3500Value VanV8 7.4L
1986GMCP3500BaseV8 7.4L
1986GMCP3500Value VanV8 7.4L
1986GMCK3500BaseV8 7.4L
1986GMCK3500High SierraV8 7.4L
1986GMCK3500Sierra ClassicV8 7.4L
1985GMCP3500BaseV8 7.4L
1985GMCP3500Value VanV8 7.4L
1985GMCK3500BaseV8 7.4L
1985GMCK3500High SierraV8 7.4L
1985GMCK3500Sierra ClassicV8 7.4L
1984GMCP3500BaseV8 7.4L
1984GMCP3500Value VanV8 7.4L
1984GMCK3500BaseV8 7.4L
1984GMCK3500High SierraV8 7.4L
1984GMCK3500Sierra ClassicV8 7.4L
1983GMCP3500BaseV8 7.4L
1983GMCP3500Value VanV8 7.4L
1983GMCK3500BaseV8 7.4L
1983GMCK3500High SierraV8 7.4L
1983GMCK3500Sierra ClassicV8 7.4L
1982GMCP3500BaseV8 7.4L
1982GMCP3500Value VanV8 7.4L
1982GMCK3500BaseV8 7.4L
1982GMCK3500High SierraV8 7.4L
1982GMCK3500Sierra ClassicV8 7.4L
1982GMCK3500Sierra GrandeV8 7.4L
1981GMCP3500BaseV8 7.4L
1981GMCP3500Value VanV8 7.4L
1981GMCK3500BaseV8 7.4L
1981GMCK3500High SierraV8 7.4L
1981GMCK3500Sierra ClassicV8 7.4L
1981GMCK3500Sierra GrandeV8 7.4L
1980GMCP3500BaseV8 7.4L
1980GMCP3500Value VanV8 7.4L
1980GMCK3500BaseV8 7.4L
1980GMCK3500High SierraV8 7.4L
1980GMCK3500Sierra ClassicV8 7.4L
1980GMCK3500Sierra GrandeV8 7.4L
1979GMCP3500BaseV8 7.4L
1979GMCP3500Value VanV8 7.4L
1979GMCP1500BaseV8 7.4L
1979GMCP1500Value VanV8 7.4L
1979GMCK3500BaseV8 7.4L
1979GMCK3500High SierraV8 7.4L
1979GMCK3500Sierra ClassicV8 7.4L
1979GMCK3500Sierra GrandeV8 7.4L
1979ExcaliburPhaetonBaseV8 7.4L
1978GMCP35BaseV8 7.4L
1978GMCP35Value VanV8 7.4L
1978GMCK25BaseV8 7.4L
1978GMCK25High SierraV8 7.4L
1978GMCK25Sierra ClassicV8 7.4L
1978ExcaliburPhaetonBaseV8 7.4L
1977GMCP35BaseV8 7.4L
1977GMCP35Value VanV8 7.4L
1977GMCK25 SuburbanBaseV8 7.4L
1977GMCK25 SuburbanHigh SierraV8 7.4L
1977GMCK25 SuburbanSierra ClassicV8 7.4L
1977GMCK25 SuburbanSierra GrandeV8 7.4L
1977ExcaliburPhaetonBaseV8 7.4L
1976GMCP35BaseV8 7.4L
1976GMCP35Value VanV8 7.4L
1976GMCK25 SuburbanBaseV8 7.4L
1976GMCK25 SuburbanHigh SierraV8 7.4L
1976GMCK25 SuburbanSierra ClassicV8 7.4L
1976GMCK25 SuburbanSierra GrandeV8 7.4L
1976ExcaliburPhaetonBaseV8 7.4L
1975GMCSprintClassicV8 7.4L
1975GMCSprintBaseV8 6.6L 6588cc
1975GMCSprintClassicV8 6.6L 6588cc
1975GMCSprintHigh SierraV8 6.6L 6588cc
1975GMCSprintSPV8 6.6L 6588cc
1975GMCP35BaseV8 7.4L
1975GMCP35Value VanV8 7.4L
1975ExcaliburPhaetonBaseV8 7.4L

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