Harley-Davidson® Screamin' Eagle® Evolution® 1340 Cams - SE-57 Cam - 25754-97

Mouse over for detailHarley-Davidson® Screamin' Eagle® Evolution® 1340 Cams - SE-57 Cam - 25754-97
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Item Number: 25754-97
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Harley-Davidson® Screamin' Eagle® Evolution® 1340 Cams - SE-57 Cam - 25754-97

Outstanding cam utilizing an advanced profile design. When combined with Screamin' Eagle® carb/intake/air cleaner/mufflers/high compression pistons and Screamin' Eagle® heads, this cam produces a broad torque curve from 3000 RPM to 5500 RPM with a peak horsepower of an astounding 95 at 6200 RPM! This cam requires compression increases for optimum performance. (See Caution Below*) For Race Application Only.
*CAUTION: Requires use of Screamin' Eagle® Valve Spring Kit and Screamin' Eagle® Adjustable Pushrods for installation and to ensure proper clearance. Failure to comply may result in engine damage.

Note: 1340 Cams over .510” lift may require case and/or tappet guide machining for cam lobe clearance. 84-85 model’s pistons may need to be fly-cut to obtain proper clearance. Please refer to instruction sheets and service manuals for more details.
* Warning Harley’s® equipped with some Screamin’ Eagle® High Performance engine parts may not be used on public roads and in some cases must be restricted to closed course competition. Engine Related Performance Parts are Intended For Experienced Riders Only!
Warranty Implications: Installation of these products (and similar products from other manufacturers) may void

Lift @ valve Intake/ Exhaust:(.575”/.575”)
Duration @ .053 Intake/ Exhaust:(252°/256°)
Timing @ .053 lift Open/Close:
(Intake: 22° BTDC/50°ABDC
Exhaust: 56° BBDC/20°ATDC)

TDC Lift @ valve int/exh: (0.202”/.186”)

* Theoretical based on rocker arm ratio of 1.65. Valve train components, operation temperature and tolorence stack-up will affect actual lifts.

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  1. Product Fitment
  2. Disclaimers

Fits ’84-’99 carbureted Evolution® 1340-equipped models. Some cams may also be used on EFI Evolution® 1340-equipped models in conjunction with an approved ECM calibration. See your Dealer for details.

CROSSED FLAG: Harley-Davidson® motorcycles modified with some (Screamin' Eagle®) performance engine parts must not be used on public roads and in some cases may be restricted to closed-course competition. In this Screamin' Eagle® section, all engine-related performance parts identified with the crossed flags symbol are intended for racing applications only and are not legal for sale or use in California on pollution-controlled vehicles. Alterations of emission related components constitutes tampering under the US EPA guidelines and can lead to substantial fines and penalties.

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