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Technical Articles for Part Number SUM-K1225
Summit Racing™ Pro SBC LS Firing Order Hydraulic Roller Cam and Lifter Kits SUM-K1225
Part Number: SUM-K1225
Summit Racing™ Pro SBC LS Firing Order Hydraulic Roller Cam and Lifter Kits
Cam and Lifter kit, Pro SBC Retrofit Stage 5 Hyd. Roller LS Firing Order, 242/251 Dur., 110 LSA + 4 Adv, .550/.550 1.5 Ratio, 2600-6600 RPM Range
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Kit/Combo Contents
Summit Racing SUM-1225 - Summit Racing™ Pro SBC LS Firing Order Hydraulic Roller Camshafts
Pro SBC Retrofit Stage 5 Hyd. Roller LS Firing Order Cam, 242/252 Dur., 110 LSA + 4 Adv, .550/.550 1.5 Ratio, .587/.587 1.6 Ratio, 2600-6600 RPM Range
Kit Item Quantity: 1
Summit Racing SUM-HT218-16 - Summit Racing™ Link Bar Hydraulic Lifters
Lifters, Hydraulic Roller, Link Bar, 0.842 in. Outside Diameter, 2.685 in. Seat Height, Retrofit, Small Block Chevy, Set of 16
Kit Item Quantity: 1
Overview
Brand:
Manufacturer's Part Number:
SUM-K1225
Part Type:
Product Line:
Summit Racing Part Number:
SUM-K1225
Cam Style:
Hydraulic roller, Retro-fit
Basic Operating RPM Range:
2,600-6,600
Camshaft Use:
Street/Strip
Camshaft Manufacturers Description:
The Stage 5 cam works with likes a 3.73+ gears and works best with a 3,500+ stall converter. It has a serious lope with a 350 CID engine or larger.
Intake Duration at 050 inch Lift:
242
Exhaust Duration at 050 inch Lift:
251
Duration at 050 inch Lift:
242 int./251 exh.
Advertised Intake Duration:
294
Advertised Exhaust Duration:
301
Advertised Duration:
294 int./301 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.550 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.550 in.
Valve Lift with Factory Rocker Arm Ratio:
0.550 int./0.550 exh.
Lobe Separation (degrees):
110
Camshaft Gear Attachment:
3-bolt
Computer-Controlled Compatible:
No
Lifters Included:
Yes
Lifter Style:
Hydraulic roller
Valve Springs Included:
No
Retainers Included:
No
Locks Included:
No
Valve Stem Seals Included:
No
Timing Chain and Gears Included:
No
Assembly Lubricant Included:
Yes
Pushrods Included:
No
Rocker Arms Included:
No
Gaskets Included:
No
Valve Springs Required:
Yes
Quantity:
Sold as a kit.
Notes:
Cam features the LS firing order, reroute 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.
Summit Racing™ Pro SBC LS Firing Order Hydraulic Roller Cam and Lifter Kits
Summit Racing™ Pro SBC LS firing order hydraulic roller retrofit cams are available in seven stages--from a small smooth idle cam capable of towing, to a big duration stomper that's ready to go bracket racing. Utilizing the LS firing order on a traditional small block Chevy improves the engine in several ways, including exhaust sound and harmonic improvements. These kits include a premium camshaft and drop-in link bar style hydraulic roller lifters. Best of all: these Pro SBC LS firing order hydraulic roller retrofit cams are precision-ground in the USA on USA billets! Order the cam recommended or your application.
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