Splined Post for Jr. Dragster Torque-Converters

For several years, ARC has been making billet crankshafts with splined PTO shafts to provide the added strength some of today's larger, more powerful cars require, but the availability of posts for various clutch assemblies has been limited. So we decided to make our own.

The main post is made of 7075 T6 Billet Aluminum. The replaceable collar is made of steel and is assembled to the post via piloted LEFT-HAND threads so the direction of resistence from the engine to the belt keeps the collar tight. Posts and collars will be available soon for ALL the major Torque-Converters used today.

ARC "Ported" Clone Air Filter Adapter

Installed Correctly (click on picture for larger view)
Installed Upside-Down (click on picture for larger view)



For maximum performance, ARC's air filter adapter is ported to the low speed (left) and high speed (right) orifice jets. This is necessary because the funneled velocity stack design would otherwise cover these jets. Improper installation of the air filter adapter will partially cover, and impede flow to the orifice jets because they are not in the same position. The engine will spit and sputter and lack both bottom, and top end power if these orifice jets are blocked.