This is meant to fit a 58mm throttle body.

It is 1" thick aluminum.

The bolt holes are 0.440" diameter.

The center bore is just over 59mm in diameter.

The outer profile matches the throttle body gasket profile very closely except for the added material for the NPT ports.

The top port is 1/4 NPT.

The three side ports are 1/8 NPT.

This is an EXPERIMENTAL component and has been designed in a RUSH. It comes with no warranty. It has never been installed. You need to make sure this will work for your desired application. Please go to the forum and ask questions before you buy it as there are NO RETURNS.

PRICING:

with 4 ports as pictured $65 shipped to USA

with no ports, just bolt holes and throttle bore $55 shipped to USA