This tip provides additional information to the Tech Tip “FIXING YOUR C4 SPORT SEAT LUMBAR SUPPORT” authored by Bob Thibodeau on 6/15/2001. 1. An alternative source for material to replace the ruptured diaphragm is a bicycle inner tube. It is much thicker than the original diaphragm, and should provide longer “life”. To prepare the tube, […]

I thought I\’d share a \”How-To\” regarding an LT1 to LT4 instrument cluster R&R Here\’s what we\’re doing… From this To this Tools you\’ll need: – Torque wrench (in/lb) – Torx bit set – Phillips head screw driver – 7, 10, 15mm sockets w/ratchet – 6\” ratchet extension Before doing the job, it would be […]

One of the most effective ways to cool your intake charge is to bypass the 180+ degree coolant flowing through your LT1 throttle body. The current purpose for the coolant flowing through the throttle body is to prevent it from freezing under extremely cold temperatures. This is great to keep if you park your LT1 […]

I take no credit for this info. This info was given when I asked \”how to\” and I thought I\’d polish & post it for future reference. Thanks to all for the help! LT-1 Coolant Change Procedure: In order to do a good flush you have to remove both knock sensors out of the block, […]