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Street Race Truck More... The Toolbox
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$249.99
$230.99
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
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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!
  • Picking a proper camshaft for your project can rapidly deteriorate into chaos. So many possibilities. Want a little advice? Click here!
  • One of the most important parts of your racing operation is the engine. This article gives a detailed overview on how to maintain your engine to get the most out of it for as long as possible. Also learn some tips to prolong the life of your engine.
  • The art of selecting a camshaft that performs right in your street rod may become easier with experience, but the choice is less of a guessing game once you have a few of the basics, found in this latest article from Speedway.

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