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Howards Cams Retrofit Hydraulic Roller Camshafts 120405-12 Camshaft, Retrofit, Tappet, Advertised Duration 288/294, Lift .618/.618, Chevy, Big Block

SKU: HRS120405-12

Camshafts

Howards Cams Retrofit Hydraulic Roller Camshafts 120405-12 Camshaft, Retrofit, Tappet, Advertised Duration 288/294, Lift .618/.618, Chevy, Big Block

SKU: HRS120405-12

Camshafts
A$1,023.97
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

Howards Cams retrofit hydraulic roller camshafts offer more lift and more power for less money. These street performance grinds are perfect for those wanting to upgrade to hydraulic roller cams. Manufactured using the highest grade race-quality cores, Howards precision-grinds their cams to provide the quality and performance that you want at a reasonable price. Overhaul your valvetrain for mild to wild street performance with Howards Cams retrofit hydraulic roller camshafts. Hundreds of models are available for a wide range of vehicles from the 1950s and up.

Part Type

BBC Hyd. Roller Cam

Data: v4.2 - Upd: 2026-09-29 03:36:27

Specifications

Product Attributes - Brand
Howards Cams
Product Attributes - Manufacturer's Part Number
120405-12
Product Attributes - Part Type
Camshafts
Product Attributes - Product Line
Howards Cams Retrofit Hydraulic Roller Camshafts
Product Attributes - UPC
840793105441
Product Attributes - Cam Style
Hydraulic roller, Retro-fit
Product Attributes - Camshaft Use
Street/Strip
Product Attributes - Camshaft Manufacturers Description
Rough idle, strong midrange torque and horsepower.
Product Attributes - Basic Operating RPM Range
2,600-6,400
Product Attributes - Intake Duration at 050 inch Lift
235
Product Attributes - Exhaust Duration at 050 inch Lift
241
Product Attributes - Duration at 050 inch Lift
235 int./241 exh.
Product Attributes - Advertised Intake Duration
288
Product Attributes - Advertised Exhaust Duration
294
Product Attributes - Advertised Duration
288 int./294 exh.
Product Attributes - Intake Valve Lift with Factory Rocker Arm Ratio
0.618 in.
Product Attributes - Exhaust Valve Lift with Factory Rocker Arm Ratio
0.618 in.
Product Attributes - Valve Lift with Factory Rocker Arm Ratio
0.618 int./0.618 exh.
Product Attributes - Lobe Separation (degrees)
112
Product Attributes - Camshaft Gear Attachment
3-bolt
Product Attributes - Remanufactured
No
Product Attributes - Computer-Controlled Compatible
No
Product Attributes - Valve Springs Required
Yes
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Retrofit roller cam for engines that did not originally come with a roller cam.

Reference Information

Brand Name/s Howards Cams
StreetFX SKU hrs120405-12
SFX Item ID 5100391
Supplier Item Code 5100391
Manufacturer SKU 120405-12
Manufacturer UPC 840793105441
Alternative References HRC120405-12

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year1967
    Ending Year1969
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.0L/427
  • MakeCHEVROLET
    Beginning Year1967
    Ending Year1970
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size6.5L/396
  • MakeCHEVROLET
    Beginning Year1970
    Ending Year1972
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size6.6L/402
  • MakeCHEVROLET
    Beginning Year1970
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
  • MakeCHEVROLET
    Beginning Year1991
    Ending Year1995
    Engine TypeV8
    Engine FamilyChevy big block Gen V
    Engine Size7.4L/454

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