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Instruction Sheets for Part Number MEL-22400
Technical Articles for Part Number MEL-22400
Melling M-Select Class 4 Camshafts
Camshaft, Mechanical Flat Tappet, Duration @ .050 in. 257/270, Lift .494/.512, Chevy, Small Block, Each
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
22400
Part Type:
Product Line:
Summit Racing Part Number:
MEL-22400
UPC:
729295501237
Cam Style:
Solid flat tappet
Camshaft Use:
Street/Strip
Intake Duration at 050 inch Lift:
257
Exhaust Duration at 050 inch Lift:
270
Duration at 050 inch Lift:
257 int./270 exh.
Advertised Intake Duration:
304
Advertised Exhaust Duration:
312
Advertised Duration:
304 int./312 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.494 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.512 in.
Valve Lift with Factory Rocker Arm Ratio:
0.494 int./0.512 exh.
Lobe Separation (degrees):
112
Intake Valve Lash:
0.022 in.
Exhaust Valve Lash:
0.024 in.
Remanufactured:
No
Computer-Controlled Compatible:
No
Valve Springs Required:
Yes
Quantity:
Sold individually.
Melling M-Select Class 4 Camshafts
If you're serious about racing, then consider running a Melling M-Select Class 4 camshaft. These high performance cams offer rough idle quality with mid- to high-rpm torque and horsepower. Class 4 camshafts are designed for use on manual or automatic transmissions with a very high stall converter. You've made power improvements in carburetion and exhaust. Now match your work with the right camshaft—Melling M-Select Class 4. Order the model designed for your vehicle and engine application.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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