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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-20-721-9
Drag Race Mechanical Roller Camshaft Lift .693"/.645" Duration 307/310 RPM Range 5000-8000
$55895
Ships on 10/21/2026
Lowest Price GuaranteeChrysler 273-360 C.I. 8 CYL. 1964-2000
- Drag Race Mechanical Roller Camshaft
Lift .693"/.645"
Duration 307/310
RPM Range 5000-8000
Mechanical Roller-Fast Bracket High Compression
273, 360, 318, AMC, Dodge, Mopar, Plymouth, Dart, Road Runner, Charger, Challenger, 383, 400, 440, 426, HEMI, 426 Wedge, 426 HEMI, RB, B, HEMI, 392, Chrysler, LA
Fast bracket, high compression.
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
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Part TypeCamshaft
BrandCOMP CAMS
Package Height2.75
Package Width3.0
Package Length24.5
Weight9.53 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)279
Cam StyleMechanical roller tappet
Grind NumberCRS 307-R6
Exh. Duration Advertised (Deg)310
Engine Make/SizeChevy Big Block (396-454)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.693
Int. Duration @ .050 In. (Deg)274
Basic Operating Rpm Range5,000-8,000
Intake Valve Lash0.026 in (0.66 mm)
Intake Valve Lift0.693 in (17.602 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)307
Lobe Separation (Deg)106
Rpm Range5000-8000
Advertised Duration307 int./310 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.665
UsageStrip
Valve Lift With Factory Rocker Arm Ratio0.693 int./0.665 exh.
QuantitySold individually
Exhaust Valve Lash0.028 in (0.711 mm)
Exhaust Valve Lift0.645 in (16.383 mm)
Advertised Intake Duration307
Intake Duration At 050 Inch Lift274
Exhaust Duration At 050 Inch Lift279
Advertised Exhaust Duration310
Lifter TypeMechanical Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift274 int./279 exh.
Valve Springs RequiredYes
Vendor Part Number20-721-9
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
