What kind of mods need to be done and how expensive is to get the L98 to 350 HP?

 

Intake, exhaust, cam, roller rockers.

That should get you there.

 

intake...as in intake base?
suggegstions for cam and rockers and intake??
sorry for hijacking but i want info too :bangs on table: lol

 

Big Runner Intake Base ie ported Edelbrock or AS&M.
Large Intake Runners ie SLP, AS&M, Edelbrock.
OR Holley Stealth Ram
Injectors around 32 lbs
Camshaft around 218/224* with high lift
Decent Aluminum Heads (take your pick)
About $2500-$3000 for the top end and you can use your own original shortblock (if it's in decent condition)

Headers (shorties are easier)
catback system....
$500

Now ya have to learn how to burn chips!!!!
No one said it was cheap!

 

Well, for simplicity the Miniram is a good intake replacement (we carry them) bolts right up and good for about 35 HP. I like them because they install easy and work.

The base, runners at least, and perhaps the plenum.

There's the HSR, lots of options.

The cam is a personal thing, nothing to suggest but more the mild but less than aggressive. Probably something that hits at 2500-5500. Depends on what the owner wants. I like a little more aggressive than most people. Mine is 240/246 with .602 lift. (it's a 427) I call that easily streetable.

Rockers? Aluminum is going away and many of the Chro-mo ones are popular now. Something like the Comp Pro Mags.

Still say don't need heads....or mild port on the stockers. There's 100s of dollars not needed to be spent.

 

At the crank, or the wheels? Two completely different requests. Obviously at the crank, a lot easier and cheaper.