MARINE, RV, TOW &
MILD PERFORMANCE ENGINES
These pistons or custom made for 350 V8 / 4.3 V6 GM CENTER VALVE COVER BOLT CYL HEADS. The factory piston for these heads has a full round dish with little to no quench. We start with a high quality matched set of Federal Mogal hypereutectic coated skirt pistons and add our own special CNC milled 17cc D-dish to install the proper quench area. What's quench? The quench zone is the area between the piston and the closed chamber portion of the cylinder head. By zero decking the block and closing this area down to about .040" (the thickness of a normal Felpro composition gasket) this tight area causes hi turbulance to keep the cylinder cool & creats a clean burn. Our D-DISH pistons increase the quench area considerably which helps alleviate power robbing detonation, while increasing the stock compression ratio from 8.4:1 to 9:1 the proper way, making your engine work more efficiently.
These pistons are loaded with features not found in others. Being a HYPEREUTECTIC piston, they are made to be run at CLOSE TOLERANCES in the bore. Also with an OFFSET WRIST PIN they will perform QUIETLY!!!! which is necessary in engines with knock sensors and quiet exhaust systems. Another feature is a LOW FRICTION SKIRT COATING to help with break in and free up friction power loss. They are also lighter than the factory pistons by about 75 grams which increases horsepower.
Our pistons can be used in other custom applications as well. With a zero deck 4.030" bore block, .040" thick head gasket and 65cc heads, the compression ratio is 9.0:1. More compression can be achieved by milling the heads as needed or e-mail us for a your own custom cc volume d-dish . Running with a tightly quench engine on todays gasoline is a must. These matched set pistons are perfect for your RV, LIGHT TRUCK, MARINE, STREET ROD, OR DAILY DRIVER.
WE HAVE MANY SETS IN OPERATION AND WORK GREAT !!!!
If you have any questions, feel free to contact us.
Please specify your bore size as needed: .020" .030" .040" .060"