The Best Engine Performance Parts 2025

1. Competition Cams K11-246-3 Xtreme Energy Camshaft Kit Fits select: 1973-1989 CHEVROLET P30, 1973-1986 CHEVROLET C30

Camshaft / Lifters / Springs / Timing Set - Xtreme Energy - Hydraulic Flat Tappet - Lift 0.552 / 0.555 in - Duration 274 / 286 - 110 LSA - Big Block Chevy - Kit -

" K-Kit" - Complete Kit Includes : Camshaft , Lifters, Valve Springs, Retainers, Valve Locks / Stem Seals, Timing Chain Set, Assembly Lube, Decals, and Instructions Quicker opening lobe profiles deliver increased responsiveness & more area under the lift curve More vacuum allows a step up in duration for greater performance Best seller; excellent all around performance in street carbureted applications Work best with COMP Cams® roller rockers and matched valve springs Require other performance parts (intake manifold, headers, etc.) for best performance

2. Competition Cams K20-221-3 Xtreme Energy Camshaft Kit Fits select: 1994-2002 DODGE RAM 1500, 1994-2002 DODGE RAM 2500

K-KIT - Complete Kit Includes: Camshaft, Lifters, Valve Springs, Retainers, Valve Locks, Valve Stem Seals, Timing Chain Set, Assembly Lube (in flat tappet applications), Decals and Instructions. Strong torque through low end and mid-range, good idle. Fits Chrysler 273, 318, 340 and 360 LA

" K-Kit" - Complete Kit Includes : Camshaft , Lifters, Valve Springs, Retainers, Valve Locks / Stem Seals, Timing Chain Set, Assembly Lube, Decals, and Instructions Quicker opening lobe profiles deliver increased responsiveness & more area under the lift curve More vacuum allows a step up in duration for greater performance Best seller; excellent all around performance in street carbureted applications Work best with COMP Cams® roller rockers and matched valve springs Require other performance parts (intake manifold, headers, etc.) for best performance

3. PRW 935000 PRW0935000 MAIN GRIDLE BLT STL SBC 350

PRW MAIN GRIDLE BLT STL SBC 350

PRW Small Block Chevy 3/8 in Thick Main Cap Girdle Kit P/N 935000. Main Cap Girdle. 3/8 in Thick. Hardware Included. Billet Steel. Zinc Oxide. Small Block Chevy. Complete Kit.

4. Competition Cams SK18-410-8 Magnum Camshaft Small Kit Fits select: 1994-1997 CHEVROLET S TRUCK S10, 1995-1997 CHEVROLET BLAZER

SK-KIT - Small Kit Includes: Camshaft, Lifters, Timing Chain Set, Assembly Lube, Decals and Instructions. Performance upgrade for stock camshaft. Good mileage, smooth idle. Vans, pickups and towing. Stock gear ratios and torque converter. Fits 1980-1997 Chevrolet 90 Degree 262/4.3L V6

SK-Kit includes Camshaft, Lifters, Timing Chain Set, Assembly Lube, Decals, and Instructions Great high RPM power Easy on valvetrain parts Can be used with mild ratio rocker arms & traditional performance valve springs Best with aftermarket converter & 9.5:1+ compression

5. Competition Cams K12-407-8 Xtreme Energy Camshaft Kit Fits select: 1967-1975 CHEVROLET CAMARO, 1969-1976 CHEVROLET C10

Fits Chevrolet GEN 1 Small Blocks including the 262, 265, 267, 283, 302, 305, 307, 327, 350 and 400. Does not fit LT1/LT4, or factory roller Small Blocks built from 1985 and newer. GM gradually added roller camshafts to 305's and 350's from the mid 80's forward. Camaros/Firebirds/Corvettes received the roller cams early, but many trucks and SUV's had flat tappet cams until the mid 90's. Remove the intake or timing cover to confirm whether the block is a factory roller or flat tappet. Does not fit the LS1, LS2, LS3 or any LS-based 4.8, 5.3, 5.7, 6.0 and 6.2. 1955-1957 Chevrolet 265 engines require a groove on the 5th cam journal for oiling. Contact us for more information. User 1 Catalog Warranty Catalog

" K-Kit" - Complete Kit Includes : Camshaft , Lifters, Valve Springs, Retainers, Valve Locks / Stem Seals, Timing Chain Set, Assembly Lube, Decals, and Instructions Quicker opening lobe profiles deliver increased responsiveness & more area under the lift curve More vacuum allows a step up in duration for greater performance Best seller; excellent all around performance in street carbureted applications Work best with COMP Cams® roller rockers and matched valve springs Require other performance parts (intake manifold, headers, etc.) for best performance

6. COMP Cams Camshaft Kit CS X4 254H-11

COMP Cams Camshaft Kit CS X4 254H-11

COMP Cams Camshaft Kit CS X4 254H-11 Fits Select: 1967-1971 CHEVROLET CAMARO 8 Cyl L 1969-1972 CHEVROLET C10 8 Cyl L 1969,1971 CHEVROLET CHEVELLE 8 Cyl L 1972-1982,1984-1986 CHEVROLET CORVETTE 8 Cyl 5.7 L 1991,1994-1995 CHEVROLET GMT-400 K1500 8 Cyl 5.7 L 1969-1971 CHEVROLET CORVETTE 8 Cyl L 1988-1990,1992-1993 CHEVROLET GMT-400 C1500 8 Cyl 5.7 L 1977-1978,1983-1988 CHEVROLET MONTE CARLO 8 Cyl 5 L 1988-1995 CHEVROLET G20 8 Cyl 5.7 L 1972-1975,1978-1981 CHEVROLET CAMARO 8 Cyl 5.7 L 1981-1986 CHEVROLET C10 8 Cyl 5 L 1975-1976,1993-1996 CHEVROLET CAPRICE CLASSIC 8 Cyl 5.7 L 1995-1996 CHEVROLET CAPRICE / IMPALA CLASSIC SS 8 Cyl 5.7 L 1972-1974 OLDSMOBILE CUTLASS SUPREME 8 Cyl 5.7 L 1969-1972 CHEVROLET C20 8 Cyl L 1972-1976 CHEVROLET MONTE CARLO 8 Cyl 5.7 L 1995 CHEVROLET TAHOE K1500 8 Cyl 5.7 L 1994-1995 GMC SIERRA K1500 8 Cyl 5.7 L 1972 CHEVROLET BLAZER K10 8 Cyl L 1973-1976,1979 CHEVROLET C10 8 Cyl 5.7 L 1972-1973 CHEVROLET MALIBU 8 Cyl 5.7 L 1987-1992 CHEVROLET CAPRICE 8 Cyl 5.7 L 1977-1986 CHEVROLET CAPRICE CLASSIC 8 Cyl 5 L 1969,1971 CHEVROLET IMPALA 8 Cyl L 1971 CHEVROLET NOVA 8 Cyl L and more - add your vehicle to our fit widget to check

7. Competition Cams K11-205-3 High Energy Camshaft Kit Fits select: 1973-1989 CHEVROLET P30, 1973-1986 CHEVROLET C30

K-KIT - Complete Kit Includes: Camshaft, Lifters, Valve Springs, Retainers, Valve Locks, Valve Stem Seals, Timing Chain Set, Assembly Lube (in flat tappet applications), Decals and Instructions. Performance with slight rough idle in 396. Great for heavy towing in 454c.i. Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts

" K-Kit" - Complete Kit Includes : Camshaft , Lifters, Valve Springs, Retainers, Valve Locks / Stem Seals, Timing Chain Set, Assembly Lube, Decals, and Instructions Work well with mainly stock components (rockers, manifolds, heads, compression, converters, gears…) Good blend of efficiency and performance Perfect choice for performance rebuilds Not the optimum choice for racing applications Great choice for engines where performance upgrades are not planned 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 and more - add your vehicle to our fit widget to check

8. Competition Cams K18-123-4 High Energy Camshaft Kit Fits select: 1988-1993 CHEVROLET S TRUCK S10, 1992-1997 CHEVROLET GMT-400 C1500

K-KIT - Complete Kit Includes: Camshaft, Lifters, Valve Springs, Retainers, Valve Locks, Valve Stem Seals, Timing Chain Set, Assembly Lube (in flat tappet applications), Decals and Instructions. Good cam for highway use, off-road and towing. Good for trucks with low gear ratios. Fits 1980-1997 Chevrolet 90 Degree 262/4.3L V6

" K-Kit" - Complete Kit Includes : Camshaft , Lifters, Valve Springs, Retainers, Valve Locks / Stem Seals, Timing Chain Set, Assembly Lube, Decals, and Instructions Work well with mainly stock components (rockers, manifolds, heads, compression, converters, gears…) Good blend of efficiency and performance Perfect choice for performance rebuilds Not the optimum choice for racing applications Great choice for engines where performance upgrades are not planned Fits Select: 1988-1993,1995-1997 CHEVROLET S TRUCK S10 6 Cyl 4.3 L 1988-1990,1992-1997 CHEVROLET GMT-400 C1500 6 Cyl 4.3 L 1989-1995 GMC SIERRA C1500 6 Cyl 4.3 L 1985-1986,1988-1995 CHEVROLET G20 6 Cyl 4.3 L 1991-1993 GMC SONOMA 6 Cyl 4.3 L 1988-1989 CHEVROLET BLAZER S10 6 Cyl 4.3 L 1985-1986 CHEVROLET C10 6 Cyl 4.3 L 1986-1990,1992 CHEVROLET CAPRICE 6 Cyl 4.3 L 1987 CHEVROLET R10 6 Cyl 4.3 L 1991 CHEVROLET GMT-400 K1500 6 Cyl 4.3 L 1988-1990 GMC S TRUCK S15 6 Cyl 4.3 L 1986-1987 CHEVROLET MONTE CARLO 6 Cyl 4.3 L 1985-1990 CHEVROLET ASTRO 6 Cyl 4.3 L 1988-1989 GMC S15 JIMMY 6 Cyl 4.3 L 1988 GMC GMT-400 C1500 6 Cyl 4.3 L 1985,1993 CHEVROLET CAPRICE CLASSIC 6 Cyl 4.3 L 1985-1986 GMC C1500 6 Cyl 4.3 L 1985-1986 CHEVROLET K10 6 Cyl 4.3 L 1985 CHEVROLET IMPALA 6 Cyl 4.3 L 1987 GMC R15 CONVENTIONAL R1500 6 Cyl 4.3 L 1986-1987,1991-1992,1994-1995 GMC RALLY WAGON / VAN G2500 6 Cyl 4.3 L 1990-1996 CHEVROLET P30 6 Cyl 4.3 L 1989,1995 GMC VANDURA G3500 6 Cyl 4.3 L 1986,1988,1994 GMC CUTAWAY VAN G3500 6 Cyl 4.3 L 1990 GMC SAFARI XT 6 Cyl 4.3 L and more - add your vehicle to our fit widget to check

9. Competition Cams K18-124-4 High Energy Camshaft Kit Fits select: 1988-1993 CHEVROLET S TRUCK S10, 1992-1997 CHEVROLET GMT-400 C1500

K-KIT - Complete Kit Includes: Camshaft, Lifters, Valve Springs, Retainers, Valve Locks, Valve Stem Seals, Timing Chain Set, Assembly Lube (in flat tappet applications), Decals and Instructions. High performance, non-computer, low gears, 2000+ stall suggested. Fits 1980-1997 Chevrolet 90 Degree 262/4.3L V6

" K-Kit" - Complete Kit Includes : Camshaft , Lifters, Valve Springs, Retainers, Valve Locks / Stem Seals, Timing Chain Set, Assembly Lube, Decals, and Instructions Work well with mainly stock components (rockers, manifolds, heads, compression, converters, gears…) Good blend of efficiency and performance Perfect choice for performance rebuilds Not the optimum choice for racing applications Great choice for engines where performance upgrades are not planned Fits Select: 1988-1993,1995-1997 CHEVROLET S TRUCK S10 6 Cyl 4.3 L 1988-1990,1992-1997 CHEVROLET GMT-400 C1500 6 Cyl 4.3 L 1989-1995 GMC SIERRA C1500 6 Cyl 4.3 L 1985-1986,1988-1995 CHEVROLET G20 6 Cyl 4.3 L 1991-1993 GMC SONOMA 6 Cyl 4.3 L 1988-1989 CHEVROLET BLAZER S10 6 Cyl 4.3 L 1985-1986 CHEVROLET C10 6 Cyl 4.3 L 1986-1990,1992 CHEVROLET CAPRICE 6 Cyl 4.3 L 1987 CHEVROLET R10 6 Cyl 4.3 L 1991 CHEVROLET GMT-400 K1500 6 Cyl 4.3 L 1988-1990 GMC S TRUCK S15 6 Cyl 4.3 L 1986-1987 CHEVROLET MONTE CARLO 6 Cyl 4.3 L 1985-1990 CHEVROLET ASTRO 6 Cyl 4.3 L 1988-1989 GMC S15 JIMMY 6 Cyl 4.3 L 1988 GMC GMT-400 C1500 6 Cyl 4.3 L 1985,1993 CHEVROLET CAPRICE CLASSIC 6 Cyl 4.3 L 1985-1986 GMC C1500 6 Cyl 4.3 L 1985-1986 CHEVROLET K10 6 Cyl 4.3 L 1985 CHEVROLET IMPALA 6 Cyl 4.3 L 1987 GMC R15 CONVENTIONAL R1500 6 Cyl 4.3 L 1986-1987,1991-1992,1994-1995 GMC RALLY WAGON / VAN G2500 6 Cyl 4.3 L 1990-1996 CHEVROLET P30 6 Cyl 4.3 L 1989,1995 GMC VANDURA G3500 6 Cyl 4.3 L 1986,1988,1994 GMC CUTAWAY VAN G3500 6 Cyl 4.3 L 1990 GMC SAFARI XT 6 Cyl 4.3 L and more - add your vehicle to our fit widget to check

10. Competition Cams SK20-249-4 Magnum Camshaft Small Kit Fits select: 1994-2002 DODGE RAM 1500, 1994-2002 DODGE RAM 2500

SK-KIT - Small Kit Includes: Camshaft, Lifters, Timing Chain Set, Assembly Lube, Decals and Instructions. Max effort bracket racing or Pro Street. 10:1-11:1 compression with 4000 to 4500 stall and 4.30-4.88 gear. Fits Chrysler 273, 318, 340 and 360 LA

SK-Kit includes Camshaft, Lifters, Timing Chain Set, Assembly Lube, Decals, and Instructions Great high RPM power Easy on valvetrain parts Can be used with mild ratio rocker arms & traditional performance valve springs Best with aftermarket converter & 9.5:1+ compression