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This story is a bit long and winded but it does have a happy ending--at least so far. Time will tell. My 1991 L98 has about 53k miles on it. The car is fairly stock with an automatic. It does have a Corsa cat-back exhaust and K&N open box and filter. Back July, on a very hot summer evening...

yes. Find a good place where they have done this kind of work before. I just spoke to a local builder who offered to put an LS6 on my '91, and he showed me pics of his previous work on that. Very impressive. But a crate LS6 alone is about $10k I believe. So you will be spending around $15k+...

I just read an old 'Vette magazine article about a guy with a '93 and LT1. He rebuilt the motor and worked the block to accept 396 crank with an overbore so he got 396 cu in. His goal too was 400+ rwhp and he got 415 rwhp on the dyno using off the shelf parts. So it can be done. If you...

The TPIS long tube headers are $725 a pair per TPIS website.

This may or may not apply to you because you smell gas INSIDE your car, but you may want to check anyway. According the Haynes Service Manual, "The most common symptom of a fault in the evaporative emissions system is a strong fuel odor in the engine compartment. If fuel odor is detected...

I have a '91 with the FX3 suspension. In the softest setting, the car rides very nicely in the highway, but nowhere near a luxury car. With cars this old though, a new set of shocks will go a long way into smoothing out the ride and handling. But it still won't ride anywhere near like a Caddy...

Roger, I apologize as I misspoke about the smog inspection. I read somewhere that cars over 20 years old no longer require smog inspections in CA. Turns out, it only applies to vehicles made before 1975. Our Corvettes will continue to get bi-annual inspections if we wish to continue driving...

It appears that my goal is too lofty with the given mods I had planned for. A complete engine replacement or stroker kit rebuild is not in the works. With only 53k miles on it, I hate to just tear that engine apart and waste the life that is still left in it. I would like to save that job...

I haven't looked into whether the TPIS long tube headers are 50-state legal or not. I assumed they were because they kept all the smog related hookups and I had no plans to eliminate the cat, only upgrade it to freer flowing one. I will need to call TPIS for more info.

I'm not holding my breath as California is one of the strictest in terms of emissions control. In fact, CA pioneered it. If it was up the EPA and CARB, they would ban all high performance upgrades on all cars. At this point, I would be happy with the headers and camshaft upgrade if it...

I think everyone agrees that it helps. For a mere $25, it's a no brainer. Go for it. I read somewhere that back during the Corvette Challenge years, TPIS pioneered this fairing on the throttle body and it became one of the standard additions on all the Challenge cars. So why not put one on...

Thanks for the input. I do appreciate it. Answers to questions: My budget is flexible but I had about $4k in mind for the engine alone. I did a spreadsheet for the initial estimate of parts only and it's already closer to $5k. So I'm preparing for the inevitable. Hib, do you really lose...

Hello everyone. It's been a while since I posted here. Life has been up and down for me lately and haven't had much time to enjoy my Corvette. However, things have settled down a bit and now I am enjoying driving the 'Vette more and enjoying it with the wife. My ride is a 1991 Corvette, L98...

Whalepirot, who did your engine work? Does your Corvette pass CA emissions? Do you have more detailed pics of your car? Would love to check it out in detail.

Will a 383 Stroker get you to 400 bhp? Or is it 400 rwhp? How about those 396 Strokers? Check out this thread from another forum: http://forums.corvetteforum.com/showthread.php?t=1860852

400 bhp from an LT1 shouldn't be too hard and it will still be very driveable. However, if you go that route, you will need to upgrade the tranny, driveshaft, differential, and chassis. Chassis meaning rebuild your suspension system, upgrade the braking to match the extra power. And if...

If he were to replace his TPI with a "modded LT1 intake, wouldn't he need new injectors, a new ignitions system, a new custom tuned chip to allow the engine to use an "extra 1500 RPM? Also, to take full advantage of that, he should also put a freer flowing exhaust on it, and lower gearing to use...

This is really Two questions in one post. :chuckle 1) I noticed for quite some time now that my Corvette has a slight case of bump-steer. It usually happens at low speed (parking lot) when I go over a speed bump at the rear axle, the steering wheel jerks a bit. The other day, I noticed it...

:L Yeah! Can you believe it? I'm a bit anal about our Corvette so I try my best to stay on top of things it needs. Believe me, that is not 100% original vintage 1991 Climate Control. I've had the condenser replaced and the Freon replaced with R134. So far, it rocks and whips up a storm...

We've owned our 1991 C4 for several years now but have never really taken her on a long distance drive. Truth is, although we love our 'Vette and drive her on weekends, the thought of taking her on a multi-day trip has never been an option because our young daughter always came along. Well, this...