GM Powerglide 10 Clutch Drum Assembly Kit Speedmaster main caps improve reliability

Speedmaster main caps improve reliability in highly stressed engines by reducing distortion of the main bearing bores

Small Block Chevy heads are available with Straight or Angled sparkplugs

They are built from strong

and use low-resistance terminals for maximum conductivity

if you want more airflow then you should grab up one of these Speedmaster X-Stream air flow top plates

GM Powerglide 10 Clutch Drum Assembly Kit Speedmaster main caps improve reliabilitySpeedmaster hub and piston kits are engineered for enhanced Powerglide performance. With a 10 clutch drum system, these kits can hold 10 frictions and 10 Kolene steels, boosting the lockup surface to manage much higher torque than modified OE drums.