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Summit Racing SUM-1221
Summit Racingzoom
manufacturer:

Attributes

Key ^Value
Advertised Duration262 int./267 exh.
Advertised Exhaust Duration267
Advertised Intake Duration262
Basic Operating RPM Range1,500-6,000
BrandSummit Racing
Cam StyleHydraulic roller, Retro-fit
Camshaft Gear Attachment3-bolt
Camshaft Manufacturers DescriptionThe Stage 1 cam works with factory gears and converter and has a slight idle note from a 327 CID engine or larger. Great for Daily drivers.
Camshaft UseStreet/Strip
Computer-Controlled CompatibleNo
Duration at 050 inch Lift212 int./218 exh.
Exhaust Duration at 050 inch Lift218
Exhaust Valve Lift with Factory Rocker Arm Ratio0.520 in.
Intake Duration at 050 inch Lift212
Intake Valve Lift with Factory Rocker Arm Ratio0.525 in.
Lobe Separation (degrees)110
Manufacturer's Part Number, Summit Racing Part NumberSUM-1221
NotesCam features the LS firing order, which swaps 4-7/2-3. Reroute plug wires for 1-8-7-2-6-5-4-3. Cam button and melonized or composite distributor gear required. Designed for engines originally equipped with flat tappet camshaft.
Part TypeCamshafts
Product LineSummit Racing? Pro SBC LS Firing Order Hydraulic Roller Camshafts
QuantitySold individually.
UPC190861265769
Valve Lift with Factory Rocker Arm Ratio0.525 int./0.520 exh.
Valve Springs RequiredYes