
Rollin' Thunder Hydraulic Roller Camshaft for 1965-1995 Big Block Chevy 396-502 Mark IV & Gen V
- Rollin' Thunder Hydraulic Roller Camshaft
- 1965-1995 Big Block Chevy 396-502ci Mark IV & Gen V
- Lift: .625''/.639''
- Duration @ .050: 236°/245°
- Advertised Duration: 335°/329°
- 1500-6500 RPM Range
Cam Notes: This camshaft works great when matched with Victor Jr. intake manifold p/n 350-2902and Victor Jr. 24° cylinder heads p/n 350-77485; this combo produces 612 HP / 581 ft.-lbs. oftorque (Tested on a GM ZZ-502 shortblock). 1965-66 B/B Chevys require agroove be machined in the rear cam journal for oil pressure. Matching Edelbrock roller tappet lifter setp/n 350-97433
Use with high stall torque converter only.
Use only stock ratio rocker arms.
Operating Range 1500-6500 RPM Duration Advertised 335° Intake/329° Exhaust Duration @ .050' 236° Intake/245° Exhaust Lift @ Valve .625' Intake/.639' Exhaust Lift @ Cam .368' Intake/.376' Exhaust Lobe Separation Angle 112° Intake Centerline 109° Intake Timing @ .050" Open 6° BTDC
Close 51° ABDCExhaust Timing @ .050" Open 54° BBDC
Close 11° ATDCImportant Application Information:
INSTALLATION NOTES: Do not use late model timing chain and gear sets that are designed for emission-controlled engines. They are machined in a retarded position and are not recommended for this camshaft installation. Use Performer-Link Timing Chain Gear Set 350-7810, or Accu-Drive 350-7891.
Rollin Thunder Hydraulic Roller cams are for street high-performance and racing applications only - not for heavy vehicles. Use with Edelbrock Performer RPM heads (or other aftermarket heads), adjustable valvetrain components, screw-in studs, high performance adjustable rocker arms and at least 9.5:1 compression ratio. Headers, high-energy ignitions, lower-than-stock rear gearing and a high-performance torque converter (in auto. transmission equipped vehicles) are necessary.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.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
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