lim gaskets and header gaskets

[speeddemon373]

wanted to know bout the head gasket do you just take everything off an put it back together or do you have to reset the timing

[pocket-rocket]

It depends if you have a pushrod or DOHC engine. Pushrod engine, no. The cam is in the block and the timing is never disturbed. DOHC, yes. The cams are in a housing bolted to the heads and all of it, including the timing belt, needs removed.

Welcome to the site

[speeddemon373]

thanks how much potential does a 3400 v6 have wanted to know if could get sum do's an donts on upgrades oh yea wanted ask so with an sfi its just about taking it apart an putting everything back together in the correct order ?

[pocket-rocket]

Yes, take apart and put back together. Make sure to keep the pushrods in the right order as intake and exhausts are different lengths. Run a tap down the holes that bolt the LIM down, and follow the torque sequence on this site to the T. As for the potential of a 3400, it depends on how far you want to take it N/A you get get over 200 hp, boosted you can easily get over double that reliably as others have done. One do, use the metal "problem solver" LIM gaskets when you replace the leaking ones.

[speeddemon373]

thanks for the info so wats the topspeed on your lumina would them gaskets hold if got a supercharger and what woulld i need to upgrade to keep the engine running

[pocket-rocket]

No idea on the top speed of my Lumina, the speedo only reads 110mph

The gaskets should hold, depending on how much pressure you are stuffing in your engine. What you should upgrade also depends on how much boost you are running. On around 7-8 with a good tune (very much required no matter what boost level you run) you could get away on stock internals. I believe others have gone higher on stock internals, but again, the good tune is stressed and can't be stressed enough if you want the engine to survive. Injectors need to be upgraded for sure if you run boost, as well as if you were running a healthy N/A build.

[speeddemon373]

alrighty got the metal felpro lim gaskets where would i find some heavy duty headgaskets