Ls1 Throttle Body Vacuum Lines

What i finally had to do was molest every single vacuum line and lines i thought were vacuum lines until i found that it was the one right under my nose.

Ls1 throttle body vacuum lines.

The engine was rated at 345 350 horses in the corvette depending on model year and would check in at as much as 325 hp in the f body cars. 6 0 cast into the. In the case on the ls1 the t b never touches the engine block. Reconnect the 8 fuel injector wires reconnect the fuel vapor line to the drivers front side of the intake manifold reconnect any throttle body sensors throttle cables maf and air intake setup.

Sniper efi s new 92mm and 102mm billet aluminum ls throttle bodies give you a great way to improve engine performance without breaking the bank. Those fittings are connected to coolant lines that has coolant running through the bottom of the throttle body they are not vacuum lines. As a starting point the ls1 was an eye opener for chevy fans. That is how the ls2 i have from an 08 tbss is routed.

The intake manifold connects the. The one at your index finger needs to attach to a fitting in your air intake after the maf but before the throttle body. The enlarged bore sizes allow for increased airflow to support your higher horsepower needs a progressive throttle. So i found a flexible 3 8 id fuel line and replaced it for a whopping 1 69.

On the bottom of the throttle body there is are coolant line fittings going in and out. For summer time use can you bypass the coolant lines. Don t let the low price fool you these are feature packed throttle bodies available in both bright silver or black anodized finishes. On an f body reconnect the throttle cable bracket and tighten the 2 bolts to 89inch pounds.

This block casting number just below the rear left cylinder head. Yes ls1 was all aluminium. Ls2 will have these items that an ls1 wont. The blue one is connected to the upper radiator hose on the dirvers side where the large hose has a y split and the smaller hose connects to the throttle body on that side.

Its all aluminum architecture made it significantly lighter than past gm v8s and power was great. The car was in a wreck so maybe they cracked an ls2 valve cover and replaced it with an ls1 valve cover. Ls1 ls2 will look the same to a total noob. It air then routes through the engine and comes out at a fitting on the rear drivers side valve cover then routes from there to a fitting behind the throttle body.