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Summit Racing Street & Strip® Camshafts SUM-1790

Summit Racing SUM-1790 - Summit Racing Street & Strip® Camshafts

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Camshaft, Hydraulic Flat Tappet, Advertised Duration 274/274, Lift .485/.485, Ford, Small Block, Each

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Brand: Summit Racing

Manufacturer's Part Number: SUM-1790

Part Type: Camshafts

Product Line: Summit Racing Street & Strip® Camshafts

Summit Racing Part Number: SUM-1790

Cam Style: Hydraulic flat tappet

Basic Operating RPM Range: 1,500-5,000

Intake Duration at 050 inch Lift: 216

Exhaust Duration at 050 inch Lift: 216

Duration at 050 inch Lift: 216 int./216 exh.

Advertised Intake Duration: 274

Advertised Exhaust Duration: 274

Advertised Duration: 274 int./274 exh.

Intake Valve Lift with Factory Rocker Arm Ratio: 0.485 in.

Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.485 in.

Valve Lift with Factory Rocker Arm Ratio: 0.485 int./0.485 exh.

Lobe Separation (degrees): 110

Computer-Controlled Compatible: No

Valve Springs Required: Yes

Camshaft Manufacturers Description: Slightly rough idle, makes good low midrange power. Works best with 9:1 and higher compression and gearing. Largest camshaft with stock converter.

Quantity: Sold individually.

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

Here's a simple high performance solution! These American-made Summit Racing Street & Strip® Camshafts feature straight-grind, and are designed for use with hydraulic flat tappet lifters. The tight lobe separation will boost your torque, throttle response, and mid range power for exciting action at the track and on the road.


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1 Customer Reviews for Summit Racing SUM-1790 - Summit Racing Street & Strip® Camshafts

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Summit RacingSummit Racing Verified Purchase

I used this cam in a 302 powered 67 Ranchero that was intended to be a "sleeper" and tow cars to and from the track. Description says "fair idle" but it is a wee bit more extreme than that. I'm not saying it doesn't run nice or lacks power, in those respects it's awesome. My gripe is that the idle is obvious and when combined with the tell-tale rattle inside the headers it gets unwanted attention driving around town. I guess we can't have everything so I'm not going to sacrifice performance for the sake of a perfect idle. The "sleeper" idea is history. Bottom line... if you don't mind the obvious lope in traffic it's perfect for a semi-stock 260, 289, 302 or 351w. The funny part is that everyone else loves the idle and I've been asked to build three more 351w engines with the same cam. Good power range form 1500 on up. I'm running an automatic w/ a stock converter and shift kit, 3.0 gears, Performer intake, 1406 carb, headers with a Ford Duraspark distributor connected to an MSD 6A box. Instant starts even after sitting for months. Decent vacuum for power brakes and it pulls surprisingly strong for a small block. more

3 of 3 found this review helpful.

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Reviewer: JEFFREY from AZ

Date: February 18, 2014

Ease of Installation

Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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