Competiton Parts

Our racing pistons are designed for 13:1 compression when used with a
prepared head with close to stock head height. Our pistons can be 
machined to reduce compression ratio all the way down to 7:1 for turbo 
applications or any desired compression ratio in between. The 
advantages of our racing pistons are:
1) Lightweight design - allows lightening to just 475 grams including wrist pins
2) Low expansion - just .003" piston to wall
3) Flexible compression ratio - range of use (street, race or turbo)

Includes wrist pins, clips, Sealed Power rings and lightweight tapered pins.
Available for:
2000 in 85mm overbore
1750 in 81mm overbore
1600 in 79mm overbore
1300 in 79mm overbore
Lightening, Balancing and Total Seal rings available.

Forged JE Racing Pistons.........................(set of 4)..$650.00
Lighten Pistons.........................................................50.00
Balance Pistons........................................................50.00
Total Seal rings upgrade............................................50.00

Race Liners

To prevent liners from cracking in high compression race engines, we have developed special centrifugally spun, chrome molly alloy race liners. These liners are available for 2 liter, 85mm bore engines. These liners will hold up well under the most demanding conditions like turbocharging and 13:1 compression race engines.

85mm Race liner...........................................$150.00 each

Our new equal length step headers have 29" length primary tubes
that start out at 1 5/8" diameter and step up to 1 3/4" diameter
after the first foot. Our dyno tests have proven that this is the key
to a broad power band from 3500 rpm to over 8000 rpm, even with race cams.
These headers have such a wide power band, some of our customers use them
on the street. They are quality built using mandrel bent tubes and
then custom welded. Another advantage of the headers is that they
are 4 individual tubes that connect into a separate collector
(included). This eliminates stresses that cause headers to crack,
plus installation is much easier since you can install them one tube
at a time.

4 into 1 Step Headers with ceramic coating.....................$850.00

Sperry Vavle Works offers the finest quality aluminum flywheels. The replaceable precision ground steel friction surface is bolted to the alloy flywheel with aircraft hardware. This flywheel weighs 11 lbs. (ring gear included) and permits quicker engine response. Lightening the stock cast iron flywheel is not recommended because of the possibility of it coming apart. An aluminum flywheel is much safer to run at higher RPM that the stock cast iron flywheel. The flywheel comes complete with new ring gear or send in your ring gear and save $75.00. Specify 1300-1600, 1750 or 2000 (if 2000, count the teeth). Also available, 2000 flywheel with 1600 ring gear for 1967 and earlier cars converted to 2000 engine.

Aluminum Flywheel..........................................$650.00

We recommend using a stock clutch cover and our competition disk. Our competition disk has a higher coefficient of friction and uses heavy duty springs.

Competition Disk.............................................$150.00

The total weight of this flywheel and clutch cover is only 13 lbs. Tilton is known for excellent quality race components.

HP flywheel..........................................$650.00

Tilton pressure plate...................................350.00

Tilton disk..................................................100.00

Tilton throw-out bearing.............................150.00

 

Home Page Pistons Headers Flywheels Carbs & Components Engine Services

45 or 48 Weber Carburetors

We recommend 45 DCOE weber carburetors for high performance street applications on 1750 and 2000 engines. 45s are also great for 1300 and 1600 race engines.

For 1750 and 2000 race engines we recommend 48 DCO Weber Carburetors. Our dyno test have proven that you can not make big horsepower without them.

Our full radius velocity stacks and air filter combinations ensure that air is filtered without degrading airflow into the engine.

For 40 DCOE Webers we offer special velocity stacks that slide into the carbs on the outside of the auxiliary venturis.

45 DCOE 152 Weber Carburetors.....................350.00 each

48 DCO Weber Carburetors...............................550.00 each

European Intake Manifold..................................200.00

45 or 48 Full Radius Velocity Stacks.................41.50 each

40mm Slide-in Stacks...........................................32.00 each

Competition Air Filter.........................................$115.50

Bendix Style Fuel Pump.........................................96.00

Bell Crank................................................................$25.00

European Pedal Assembly....................................75.00

4 Cylinder Engine Rebuild Services

     Our engine rebuild services start with a detailed evaluation of the components given to us by the customer. All Sperry engines are blueprinted to ensure components such as the block journals, crankshaft journals, rod journals are with in race tolerances. Other services such as align honing the block, crank grinding, heat treating, balancing are performed as necessary.

     Our engine dyno services include engine break-in to seat the rings thus saving valuable track time. We dial in the ignition timing and make jetting changes to obtain maximum power.

Labor to Build Engine...............................................$1800.00

Grind Crankshaft........................................................150.00

Align Hone Block........................................................150.00

Heat Treat Crankshaft (1300 & 1600)...........................150.00

Dyno Engine.............................................................850.00