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Proform Stamped Steel Long Slot Rocker Arms for Small Block Chevy with 1.5 Ratio & 3/8" Stud
Representative Image
Product images may differ from actual product appearance.
778-66905
Proform 66905 Details
Stamped Steel Long Slot Rockers
Specifications:
Engine Make/Size
Chevy Small Block (262-400)
Stud Size
0.3750
Ratio
1.5
Position
N/A
Includes Shims
NO
Nut Style
Crimp Nut
Arm Finish
Natural
Arm Material
Steel
Quantity
Sold as a set of 16
Rocker Arm Body Style
Standard
Rocker Arm Mounting Style
Stud
Rocker Arm Nut Style
Self-locking
Rocker Arm Ratio
1.5
Rocker Arm Style
Non-roller
Self-Aligning
No
Shims Included
No
Slot Style
Extra-long
Manufacturer's Part Number:
66905
Made to strict OE standards the Proform Stamped Steel Long Slot Rocker Arms are ideal when your application doesn't require roller-tip rocker arms. They feature an extra-long slot that eliminates rocker-to-stud interference when using a high-lift camshaft.
Does Proform 66905 fit your vehicle?
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Aspiration
Aspiration
1974 CHEVROLET K20 SUBURBAN
- Liter: 5.7
- Aspiration: N
- SubModel: BASE
- Engine Vin: Y
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1969-1970 GMC K1500 PICKUP
- CC: 5736
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1980 CHEVROLET C20 PICKUP
- Liter: 5.0
- SubModel: BASE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1980 CHEVROLET C10 SUBURBAN
- Liter: 5.0
- SubModel: BASE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1972 CHEVROLET CAPRICE
- CC: 5737
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1968 CHEVROLET CHEVELLE
- Liter: 5.4
- SubModel: 300 DELUXE
- CUI: 327
- EngineType: V8 ( 5.4 L / 327 )
1996 GMC G3500 VAN
- Liter: 5.7
- SubModel: VANDURA
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1955-1957 CHEVROLET BEL AIR
- CC: 4343
- Liter: 4.3
- SubModel: BASE
- CUI: 265
- EngineType: V8 ( 4.3 L / 265 )
1975-1978 CHEVROLET K20 PICKUP
- Liter: 5.7
- SubModel: CHEYENNE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1981 CHEVROLET G20 VAN
- CC: 5031
- Liter: 5.0
- SubModel: BASE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1991-1992 CHEVROLET CAPRICE
- EngineType: ALL
- SubModel: CLASSIC
1972 CHEVROLET CHEVELLE
- CC: 5031
- Liter: 5.0
- SubModel: BASE
- CUI: 307
- EngineType: V8 ( 5.0 L / 307 )
1979-1980 GMC K2500 PICKUP
- Liter: 6.6
- SubModel: BASE
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1980 CHEVROLET G10 VAN
- Liter: 5.0
- SubModel: SPORTVAN
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1968-1969 CHEVROLET P20 VAN
- Liter: 5.0
- SubModel: BASE
- CUI: 307
- EngineType: V8 ( 5.0 L / 307 )
1987 GMC R1500 PICKUP
- Liter: 5.0
- SubModel: BASE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1971 CHEVROLET CHEVELLE
- CC: 5736
- Liter: 5.7
- SubModel: CONCOURS ESTATE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1967 CHEVROLET SUBURBAN
- CC: 4638
- Liter: 4.6
- SubModel: BASE
- CUI: 283
- EngineType: V8 ( 4.6 L / 283 )
1969 CHEVROLET NOVA
- CC: 5031
- Liter: 5.0
- Aspiration: N
- SubModel: BASE
- Engine Vin: DC
- CUI: 307
- EngineType: V8 ( 5.0 L / 307 )
1987 GMC V1500 PICKUP
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1977-1978 CHEVROLET K5 BLAZER
- Liter: 6.6
- SubModel: CHEYENNE
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1973 CHEVROLET K20 SUBURBAN
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1986 CHEVROLET CORVETTE
- EngineType: ALL
- SubModel: BASE
1962-1965 CHEVROLET CORVETTE
- Liter: 5.4
- SubModel: BASE
- CUI: 327
- EngineType: V8 ( 5.4 L / 327 )
1969 CHEVROLET TOWNSMAN
- CC: 5736
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1983-1984 CHEVROLET C20 PICKUP
- Liter: 5.7
- SubModel: CUSTOM
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1972-1973 CHEVROLET C20 SUBURBAN
- Liter: 5.0
- SubModel: BASE
- CUI: 307
- EngineType: V8 ( 5.0 L / 307 )
1977-1978 CHEVROLET G20 VAN
- CC: 5031
- Liter: 5.0
- SubModel: SPORTVAN
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1976 CHEVROLET MONZA
- CC: 5031
- Liter: 5.0
- SubModel: BASE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1970-1971 CHEVROLET TOWNSMAN
- CC: 6556
- Liter: 6.6
- SubModel: BASE
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1978 CHEVROLET CORVETTE
- EngineType: ALL
- SubModel: BASE
1980-1983 CHEVROLET CAPRICE
- CC: 5031
- Liter: 5.0
- SubModel: CLASSIC
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1972 CHEVROLET KINGSWOOD
- CC: 5737
- Liter: 5.7
- SubModel: ESTATE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1957-1967 CHEVROLET BEL AIR
- CC: 4638
- Liter: 4.6
- SubModel: BASE
- CUI: 283
- EngineType: V8 ( 4.6 L / 283 )
1969 CHEVROLET K20 SUBURBAN
- CC: 5031
- Liter: 5.0
- Aspiration: N
- SubModel: BASE
- Engine Vin: E
- CUI: 307
- EngineType: V8 ( 5.0 L / 307 )
1967 CHEVROLET CHEVELLE
- Liter: 5.4
- SubModel: BASE
- CUI: 327
- EngineType: V8 ( 5.4 L / 327 )
1979-1980 GMC K2500 SUBURBAN
- Liter: 6.6
- SubModel: BASE
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1977-1978 CHEVROLET C10 PICKUP
- CC: 5031
- Liter: 5.0
- SubModel: CHEYENNE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1971 CHEVROLET CHEVELLE
- CC: 5736
- Liter: 5.7
- SubModel: GREENBRIER
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1968-1969 CHEVROLET CAPRICE
- Liter: 5.4
- SubModel: BASE
- CUI: 327
- EngineType: V8 ( 5.4 L / 327 )
1970 CHEVROLET BLAZER
- CC: 5736
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1968 CHEVROLET CAPRICE
- CC: 5031
- Liter: 5.0
- Aspiration: N
- SubModel: BASE
- Engine Vin: ME
- CUI: 307
- EngineType: V8 ( 5.0 L / 307 )
1956 CHEVROLET CORVETTE
- CC: 4343
- Liter: 4.3
- SubModel: BASE
- CUI: 265
- EngineType: V8 ( 4.3 L / 265 )
1979-1986 GMC C1500 SUBURBAN
- Liter: 5.0
- SubModel: BASE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1988-1993 GMC C3500 PICKUP
- Liter: 5.7
- SubModel: SIERRA
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1967-1968 GMC K25/K2500 PICKUP
- Liter: 5.4
- SubModel: BASE
- CUI: 327
- EngineType: V8 ( 5.4 L / 327 )
1983-1984 CHEVROLET BLAZER K5
- Liter: 5.7
- SubModel: CUSTOM
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1989-1995 GMC C1500 PICKUP
- Liter: 5.0
- SubModel: SIERRA XC
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1977-1978 CHEVROLET K30 PICKUP
- Liter: 6.6
- SubModel: CHEYENNE
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1979 CHEVROLET MALIBU
- Liter: 5.7
- Aspiration: N
- SubModel: CLASSIC
- Engine Vin: L
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1970 CHEVROLET C20 PICKUP
- CC: 5031
- Liter: 5.0
- Aspiration: N
- SubModel: BASE
- Engine Vin: A
- CUI: 307
- EngineType: V8 ( 5.0 L / 307 )
1975-1978 GMC K15 SUBURBAN
- Liter: 6.6
- SubModel: BASE
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1994-1995 GMC C2500 PICKUP
- Liter: 5.7
- SubModel: SIERRA SL
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1979 CHEVROLET CORVETTE
- Liter: 5.7
- Aspiration: N
- SubModel: BASE
- Engine Vin: 4
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1975-1978 CHEVROLET K10 SUBURBAN
- Liter: 6.6
- SubModel: CUSTOM DELUXE
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1975-1978 CHEVROLET K20 SUBURBAN
- Liter: 5.7
- SubModel: CUSTOM DELUXE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1976 CHEVROLET MALIBU
- Liter: 5.7
- SubModel: CLASSIC
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1995 CHEVROLET C2500 PICKUP
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1980 CHEVROLET CORVETTE
- CC: 5031
- Liter: 5.0
- SubModel: BASE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1977-1981 CHEVROLET CAMARO
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1980 GMC C1500 PICKUP
- Liter: 6.6
- SubModel: BIG TEN
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1970 CHEVROLET CHEVELLE
- CC: 5031
- Liter: 5.0
- Aspiration: N
- SubModel: BASE
- Engine Vin: ND
- CUI: 307
- EngineType: V8 ( 5.0 L / 307 )
1971-1995 GMC G25/G2500 VAN
- Liter: 5.7
- SubModel: RALLY
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1968-1969 CHEVROLET BISCAYNE
- Liter: 5.4
- SubModel: BASE
- CUI: 327
- EngineType: V8 ( 5.4 L / 327 )
1979-1982 CHEVROLET K20 PICKUP
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1977 CHEVROLET CAMARO
- Liter: 5.7
- SubModel: LT
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1974 CHEVROLET NOVA
- CC: 5737
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1980 CHEVROLET K10 PICKUP
- Liter: 6.6
- Aspiration: N
- SubModel: BASE
- Engine Vin: X
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1967 GMC P35/P3500 VAN
- Liter: 4.6
- SubModel: BASE
- CUI: 283
- EngineType: V8 ( 4.6 L / 283 )
1994-1995 CHEVROLET C1500 PICKUP
- CC: 5031
- Liter: 5.0
- SubModel: BASE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1973 GMC C1500 PICKUP
- CC: 5736
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1973 GMC K35/K3500 PICKUP
- CC: 5736
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1982 CHEVROLET C10 SUBURBAN
- CC: 5031
- Liter: 5.0
- SubModel: BASE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1973 CHEVROLET P10 VAN
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1969-1973 CHEVROLET G10 VAN
- Liter: 5.0
- SubModel: BASE
- CUI: 307
- EngineType: V8 ( 5.0 L / 307 )
1978 GMC C1500 PICKUP
- Liter: 6.6
- SubModel: BASE
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1972 CHEVROLET CHEVELLE
- CC: 5737
- Liter: 5.7
- SubModel: GREENBRIER
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1969 CHEVROLET CHEVELLE
- CC: 5031
- Liter: 5.0
- Aspiration: N
- SubModel: GREENBRIER
- Engine Vin: DC
- CUI: 307
- EngineType: V8 ( 5.0 L / 307 )
1977 CHEVROLET IMPALA
- Liter: 5.7
- SubModel: CUSTOM
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1986 CHEVROLET BLAZER K5
- Liter: 5.7
- SubModel: CUSTOM
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1985 CHEVROLET C10 PICKUP
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1989-1991 CHEVROLET R2500 SUBURBAN
- Liter: 5.7
- SubModel: SCOTTSDALE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1969-1970 CHEVROLET C10 PICKUP
- CC: 5736
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1988 CHEVROLET CAMARO
- CC: 5031
- Liter: 5.0
- SubModel: BASE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1968 CHEVROLET CHEVELLE
- CC: 5031
- Liter: 5.0
- Aspiration: N
- SubModel: NOMAD
- Engine Vin: ME
- CUI: 307
- EngineType: V8 ( 5.0 L / 307 )
1987-1991 GMC V3500 PICKUP
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1979 CHEVROLET MONZA
- Liter: 5.0
- SubModel: BASE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1983 GMC G15/G1500 VAN
- Liter: 5.0
- SubModel: RALLY CUSTOM
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1972 CHEVROLET C20 SUBURBAN
- Liter: 5.7
- Aspiration: N
- SubModel: BASE
- Engine Vin: J
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1989-1995 GMC K1500 PICKUP
- Liter: 5.0
- SubModel: SIERRA XC
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1988-1989 CHEVROLET K1500 PICKUP
- Liter: 5.7
- SubModel: CHEYENNE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1972 GMC K1500 PICKUP
- CC: 5736
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1969 CHEVROLET CAPRICE
- CC: 5736
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1968 CHEVROLET CHEVY II
- CC: 5031
- Liter: 5.0
- Aspiration: N
- SubModel: NOVA
- Engine Vin: ME
- CUI: 307
- EngineType: V8 ( 5.0 L / 307 )
1988-1991 CHEVROLET BLAZER
- Liter: 5.7
- SubModel: SCOTTSDALE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1976-1980 GMC C1500 PICKUP
- Liter: 5.0
- SubModel: BASE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1957 CHEVROLET ONE-FIFTY SERIES
- CC: 4638
- Liter: 4.6
- SubModel: BASE
- CUI: 283
- EngineType: V8 ( 4.6 L / 283 )
1968 CHEVROLET CHEVELLE
- Liter: 5.4
- SubModel: 300
- CUI: 327
- EngineType: V8 ( 5.4 L / 327 )
1979 CHEVROLET K10 PICKUP
- CC: 5031
- Liter: 5.0
- SubModel: BASE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1975-1989 CHEVROLET G10 VAN
- Liter: 5.7
- SubModel: SPORTVAN
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
66905 - Proform Stamped Steel Long Slot Rocker Arms is rated
out of
5 by
2.
Rated 5 out of
5
by
andy z from
Great quality, well made.
Excellent rockers for moderate street build engine in process. Long slots for .450 lift cam I am using, clear well. Looking at them close they are made correctly.
Date published: 2015-02-15
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Ships directly from the manufacturer on 07/30/18
Ships directly from the manufacturer on 07/30/18
Some parts are not legal for use in California or other states with similar laws / regulations
