LS 4 Bolt 102mm to LS 96mm 4 Bolt Throttle Body Adapter Speedmaster coil springs are designed

Speedmaster coil springs are designed to withstand the high stress levels of modern suspensions

especially if you frequently have to remove and reinstall the valve cover

Speedmaster gate plates are bolt-on options to convert your standard-pattern shifter

These idler brackets include all the hardware required

on dedicated cam-grinding machines

LS 4 Bolt 102mm to LS 96mm 4 Bolt Throttle Body Adapter Speedmaster coil springs are designedThese adapter plates are offered for several different applications, but they are all made from aerospace grade aluminum. Adapter plates are available in a variety of straight and tapered through hole diameters.