Tuff Stuff Performance 11" Brake Booster - Dual Diaphragm - Black Powder Coat - GM Truck 1973-93 RS003C0103 This 230cc cylinder head is

This 230cc cylinder head is ideal for normally aspirated 396-427ci and for a wild 346ci the 230 is a good choice

EGT Probe 3/16 in Compression to 1/8 in NPT Male

Outer mounting bolt holes are 2-1/2" CTC

ASA Challenge

Great for towing

Tuff Stuff Performance 11" Brake Booster - Dual Diaphragm - Black Powder Coat - GM Truck 1973-93 RS003C0103 This 230cc cylinder head isAvailable in beautiful chrome plated, gold zinc and a variety of colors. Single and dual diaphragm styles available in 7", 8", 9" and 11" diameters fit virtually all hot rods, customs and muscle cars. Includes 3 8" 16 mounting studs and nuts where applicable. Works with many stock mounting brackets and with Tuff Stuff bracket kits Product Features: Vacuum Tested To Ensure Reliability Tuff Stuff Performance Accessories provide you with the "Ultimate"