Wiseco leads the performance aftermarket by producing the highest quality forged pistons for Harley-Davidson right here in the USA. Extreme conditions demand the strength and toughness that only forged pistons can offer. Compared to cast pistons, forgings are tougher, more durable, & will stand up to the abuse that high performance V-Twin applications require. These superior quality pistons come with Armor Glide skirt coating, a high-tech lubricant that reduces friction & also allows the piston to be fit tighter within the bore promoting a better ring seal & reduced noise from piston rock. Made in the USA. Sold complete including two pistons, rings, wrist pins & circlips. Std. & oversizes available.

Twin-Cam ’99-up

 Beehive Kits for 5/16 valves

High silicon & vanadium alloy spring wire – Extra processing for fatigue resistance – Resist pressure loss & failure associated with extremely aggressive cams in high compression engines – Reduce vibration & harmonics. Made in the USA.

Max lift 

       Seat pressure

Coil bind

Standard double spring kits for 5/16 valves

High silicon & vanadium alloy spring wire – Extra processing for fatigue resistance – 1.375″ top retainers for better clearance inside rocker boxes – Springs feature chamfered top to match smaller retainers. Made in the USA.

Precision machined cast-iron valve guides featuring a tapered nose design for improved flow characteristics with minimal port obstruction. Can be used as intake or exhaust. Overall length is 2.40″, machined for a .420″ seal. Sold each, Made in the USA. $12.95

One piece stainless steel, stellite-tipped valves impregnated by a nitrided process with .002″ depth & .0002″ surface build-up to improve wear properties & reduce friction. Lightweight with profiles that provide excellent flow characteristics. Can be run in either cast-iron or bronze valves guides at close tolerances for maximum oil control & heat dissipation. Sold each, Made in the USA.

Roller Rockers

Roller-Tip rocker arm conversions by Baisley Hi-Performance dramatically reduce valve & valve guide wear, especially in high lift performance applications. The benefit is a smoother more controlled valve train. These modifications are performed to the original equipment rocker arms witch you supply or purchase the cores from us. New shafts should be used when installing roller rocker arms. Recommended for cam lifts .550″ & up.

Billet Rocker Arm Supports
Made of 6061-T6 billet aluminum, twice the strength of stock supports.

FTF Performance Lifters:

These tappets are machined on CNC equipment for precise oil leakdown rates and quiet operation. Designed to allow high RPM performance with excellent valve train control. Installs like stock, fits ’99-up Twin-Cam, ’00-up XL & Buell. sold in sets of four. Made in the USA.

Designed utilizing state-of-the-art cam evaluation software, along with real-world data acquisition. Dyno tested & street proven! Manufactured exclusively for F.T.F. Performance by Andrews ( the industry leader in cam technology) these grinds are true performers! Made in the USA.

FTF 527 $299.95

• Bolt-in
• Broad torque curve with strong top end power.
• 2,500 to 6,000 RPM
• 88′ to 103″ eng. with 9.5- up compression ratio.
• Hi-flo exhaust & air cleaner recommended.
• Adjustable pushrods required.
  * Produces 95 to 105 horsepower in our  Stg-1 engine kits

Dyno Results:

We also carry popular grinds from Andrews, Redshift, S&S, & Crane! Let our tech. department help you pick the right cam for your application. Call: (855) FTF-PERF

Red Line Motor Oils are designed to provide the highest degree of protection and cleanliness for your motorcycle engine. Using the most stable synthetic components available to formulate there products for wear protection across a wide range of engine operating conditions. Red Line lubricants are unique because they contain Polyol Ester base stocks, the only lubricants which can withstand the tremendous heat of modern jet engines. This high-temperature stability makes our motor oil a necessity to properly lubricate a turbocharger or hot-running, air cooled engine. The synthetic base stocks have a natural multigrade property, which means that large amounts of unstable polymeric thickeners, like those used in petroleum oils, are not required to manufacture our multigrades. Exceeds all vehicle warranty requirements worldwide! Made in the USA.

	20W50 Motor Oil Recommended for use in all Evo,Twin-Cam & V-Rod models
	“Nothing protects better….”
	$11.95 per quart
	$135.00 case of 12

	MTL 70W80 Gear Oil Recommended for use in the primary chain-case of all Big Twins.
	“Greatly extends clutch life!”
	$14.95 per quart
	$168.00 case of 12

	Heavy ShockProof Gear Oil Recommended for use in the transmission compartment of all Big-Twins
	“The best trans fluid you will ever use, guaranteed!”
	$15.95 per quart
	$180.00 case of 12

	75W90 Gear Oil Recommended for use in the combined clutch/trans cavity of Sportster models
	“Provides consistent shifting & wet-clutch operation!”
	$15.95 per quart
	$180.00 case of 12

	Liquid Assembly Lube Recommended and used by top camshaft & drivetrain manufactures.
	“Used by the best engine builders in the world!”
	$ 12.95 per bottle 12 oz

EFI Tuning Modules

We guarantee all maps for one year, if you make changes to your bike during that time we will remap it for half price. We also double the manufacturers warranty on all EFI modules (except Super Tuner) sold & tuned at Throttle-City!

(See Dyno page for more info…)

Horsepower Inc. Throttle-Bodies

The original Big Bore throttle body! These units are designed, tested and re-tested to supply unmatched quality airflow to achieve maximum horsepower and torque gain. We’ve tried them all, these are the best! Compatible with all OEM factory components. Each unit is supplied with intake flanges for use on present or past heads. Made in the USA.

High-Flow Injectors

These high volume injectors deliver enough fuel to handle even the largest displacement street engines. Superior fuel distribution results in increased power output. Recommended for applications producing well over 100 horsepower. Sold in Pairs.

S&S Carburetors

Each carb kit includes everything needed to complete installation. Hi-Flow petcock recommended. Made in the USA.

Throttle-City is an authorized S&S dealer. Call for availability & pricing on parts not listed above.

FTF Stg-1 Air Cleaners

These affordable Hi-Flow air cleaner kits are assembled from some of the highest quality American made components in the industry. Featuring S.E. perfect fit backing plates & a cleanable filter element with a lifetime warranty! 100% satisfaction guaranteed. Available in chrome or black finish with red or black filter.

We also sell air cleaners from other manufactures. Call for great pricing!