Howards Cams 514635-10 Oldsmobile 4/7 Swap Hydraulic Roller

This Howards Cams 514635-10 Oldsmobile Retro-Fit 4/7 Swap Hydraulic Roller Camshaft fits 260-455 cubic inch Oldsmobile engines from 1967-1990. Howards designed this cam for street/strip use, and it features s rong mid-range torque & horsepower with a rough idle. A 9.5:1+ compression ratio, lower rear end gears and a 2600+ stall speed torque converter are highly recommended.

4/7 Swap camshafts change the firing order to create even more power!

Howards Cams 514635-10 Oldsmobile 4/7 Swap Hydraulic Roller Camshaft Specs:

• Ignition Firing Order Must Be Changed To: 1-8-7-3-6-5-4-2
• For Oldsmobile 260-455 engines from 1967-1990
• Basic RPM Range: 2200 to 6600
• Valve Lift Intake: .581
• Valve Lift Exhaust: .581
• Intake Duration: 288
• Exhaust Duration: 294
• Intake Duration at .050”: 235
• Exhaust Duration at .050”: 241
• Lobe Separation: 110
• Intake Centerline: 106
• Recommended Lifter Set: 91464 Retro-Fit Street
• Recommended Valve Springs: 98438
• Recommended Valve Spring, Retainer and Lock Kit: 98438-K12
• Made in the USA

Notes: Stock (O.E.) valve springs can NOT be used.

Howards Cams designed this Hydraulic Roller camshaft for high performance on the street and on the drag strip.

Howards Hydraulic Roller Cams – From mild to wild, they are the ultimate in performance!