I want to install aftermarket heads and cam myself this fall and I was wondering if anyone knows a website that has step by step instructions for installing heads and a cam on an L98 engine. I just want to know exactly what I am getting into. I have found some sites that show heads and cam installs on LS1's but nothing for a TPI L98 engine.

Thanks

 

I don't know of any site, but you're in for a lot of work.

The entire front of the engine needs to be removed, radiator too. Manifolds/Headers taken off. Entire top part of engine taken off. If you have AC that most likely will need to be taken out too.

Either way TTT for ya.

 

Ah ****, and i wanna do heads and cams one day, looks like its gonna be help putting them in. Oh well, at least i get hands on experience, i'll save money, and i have a second car so i can take all the time i want.

 

Your ac doesnt have to be taken out. Just move the compressor to the side and call it good.

Kat

 

why don't you buy a manual, has step by step instructions and pictures, plus a lot of other info you might need

 

Heads and cam is about a 15 hour job for a mechanic. If it is just you and a buddy, it can take a few days. I thought it would only take 8-10 hrs. Ho ho ho!!! What a surprise I was in for.

I just did it last week. My buddy is a mechanic and I was the gopher/bottle washer, etc. We started Sunday afternoon at 2 pm and didn't finish until Wednesday evening at 9:30 pm.

That was not continuous, he has a regular job and came over in the evenings, one night until 1 am! We also had to run around finding really wierd things a few times, like an oddball size key to remove a screw in plug on the side of one head.

But if you are inexperienced and don't have help, set aside an entire weekend of 12-14 hr. days.

 

Thanks for your help guys. It doesn't matter how long it takes because I most likely won't get to it until the car is in storage for the winter. I don't mind taking apart the whole engine because when I do the heads and cam, I'm also going to add an LT1 intake, headers, TB, and possibly removing the AC. Am I going to have to get a custom prom to get the car to run right? I already have a custom prom from when I had the engine built into a 383 but it was programed for stock heads, stock TPI, and a mild cam. So what do you think? I really don't want to spend another $500 on the computer. Thanks again

 

Talk to the folks on the TPI board about the programming. Probably someone has done exactly what you have planned and can recommend a good programmer.

 

If you're going to be doing all that, plus the converter. I sugest you pull the engine. Would most likely be faster, and you sure don't want to scratch that paint! And you will need another prom.

 

I wasn't planning on doing the converter when I do the engine work this fall/winter because I have never done any driveline work before and I don't want to screw it up. Is it hard to install a stall converter? I was going to have a converter, driveshaft, and have my rearend beefed up and 3.73's installed early next summer by the speed shop that built my engine.

I was afraid I was going to need a new prom.

Did you do a heads and cam change on your car? If so, what are the specs and what were your results(1/4mi, dyno)? Thanks