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Street Race Truck More... The Toolbox
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$249.99
COMP Cams 12-688-47 4/7 Swap S/B Chevy Solid Lifter Cam, 3000-6800 RPM
COMP Cams 12-688-47 4/7 Swap S/B Chevy Solid Lifter Cam, 3000-6800 RPM

COMP Cams 12-688-47 4/7 Swap S/B Chevy Solid Lifter Cam, 3000-6800 RPM

Chevy Small Block V8, Solid Flat Tappet Camshaft Type, 3000 to 6800 RPM Range

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COMP Cams 12-688-47 4/7 Swap S/B Chevy Solid Lifter Cam, 3000-6800 RPM
COMP Cams 12-688-47 4/7 Swap S/B Chevy Solid Lifter Cam, 3000-6800 RPM
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Part # 2821268847
$249.99
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  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

Details

Camshaft Type:
Solid Flat Tappet
RPM Range:
3000 to 6800
Intake Duration:
278
Exhaust Duration:
284
Lobe Separation:
106 °
Intake Duration @ .050" Lift:
248
Exhaust Duration @ .050" Lift:
250
MFG. Part #:
12-688-47
GTIN Code:
036584084143
Sold in Quantity:
Each

Info

Mechanical flat tappet camshaft for oval track applications by COMP Cams. Cam features a 4/7 swap firing order (18736542 firing order) which exchanges the 4 and 7 camshaft lobe timing in small block Chevy V8s. This provides a smoother application of force to the crankshaft. Some 4/7 swap engines will experience horsepower gains, but all of them will gain an exceptionally smooth torque curve with this new firing order technology.

Cam Application Chart (GIF)

282-1268847 Specs (Link)

Item Details

1/4 to 3/8 tight, 327-358 ci. 11:1+ 2BBL with good intake and exhaust.
Some parts are not legal for use in California or other states with similar laws/regulations

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  • What happens when you advance or retard a camshaft? In this tech article, we explain the pros and cons of installing your cam straight up, advancing or retarding.
  • Learn the basics to engine performance like; how does a cam work? What is Valve lift, duration, lobe separation angle, and cam profiles? Afterwords selecting the right camshaft will be less of a guessing game!

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