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Summit Racing® Classic Camshafts SUM-1103

Summit Racing SUM-1103 - Summit Racing® Classic Camshafts

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Camshaft, Hydraulic Flat Tappet, Advertised Duration 288/298, Lift .444/.466, Chevy, Small Block, Each

Estimated Ship Date: Loading...Processing 3/20/2019 (if ordered today) Would you rather pick it up? Select Location

Brand: Summit Racing

Manufacturer's Part Number: SUM-1103

Part Type: Camshafts

Product Line: Summit Racing® Classic Camshafts

Summit Racing Part Number: SUM-1103

UPC: 190861035676

Cam Style: Hydraulic flat tappet

Basic Operating RPM Range: 1,600-5,200

Intake Duration at 050 inch Lift: 214

Exhaust Duration at 050 inch Lift: 224

Duration at 050 inch Lift: 214 int./224 exh.

Advertised Intake Duration: 288

Advertised Exhaust Duration: 298

Advertised Duration: 288 int./298 exh.

Intake Valve Lift with Factory Rocker Arm Ratio: 0.444 in.

Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.466 in.

Valve Lift with Factory Rocker Arm Ratio: 0.444 int./0.466 exh.

Lobe Separation (degrees): 112

Computer-Controlled Compatible: No

Valve Springs Required: Yes

Camshaft Manufacturers Description: Fair idle, low midrange torque/horsepower, works well in 327 and higher c.i.d. engines. Largest camshaft with stock converter.

Quantity: Sold individually.

In-Store Pickup: Choose In-store pick-up (OH, NV, GA, TX) on our web site.

From low-end torque to top-end horsepower--and everything in between--one of our Summit® classic cams has you covered. Assembly lube is included.


Questions & Answers Ask a Product Question

I have a 400 sbc and I want to change the cam wondering if this cam would work for basically a stock 400 chevy only put a summit carb and high rise intake (stage 1) with headers looking for a mid type cam and what would I need to change with cam?

Asked by JOE G on October 03, 2017


This can may be a bit too much for a basic stock motor.
Look over Summit cams and step down 1 or 2 part numbers and you may be ok.
The motor I have the cam in question is bored 30 over, balanced, good flowing cast iron Sportsmen heads, good Victor Jr aluminum intake, 28,000 yo 32,000 stall converter and vacuum canister.

CHARLES from MS answered on October 23, 2017

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I just bought an early model 283... Its bored 10 over but it is still only a 285... It says its recommended for 327s? Would it work in my 283?

Asked by on June 26, 2017


I'm sure it would work. Weather it would be the optimum cam for your application, I don't know. I put mine in a .30 over 327 but I haven't got it running yet. Good luck.

EMERSON from CA answered on June 28, 2017

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Will this be too much for my 305?

Asked by MALCOLM on January 17, 2018


It's the biggest you want go in a 305, but I would bore it out flattop pistols for more compression

DALLAS from NV answered on January 23, 2018

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is this cam compatible with a mechanical fuel pump

Asked by LARRY on June 20, 2017



MIKE from GA answered on June 23, 2017

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Some parts are not legal for use in California or other states with similar laws / regulations

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