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So as most of you know, I know have a 93 Caprice with the 5.7 L05 in it, and I was wondering (Mr. Sonoma-cough) if any of you know where to find some aftermarket performance parts for it...maybe you've built off of these engines before, or you just know of a few good sites. Whatever the case, any help is appreciated!
 

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LOL!!! Well, performance & the TBI's do not go hand in hand...

I personally am not aware of upgrades, although I'm sure there must be tonnes out there in one form or another...

I for one do not like that air cleaner setup, as I've removed the air intake snorkle...I was debating on procuring a pickup truck air cleaner assy to pt on it instead (like the TBI SBC 350's had the in the 90-92 Fleetwood Broughams)
 

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L05 has several options. One thing Im trying to do now is make a cheap cai and get rid of that giant thing they call an air cleaner.
There are injector spacers that do boost power, as well as a cheap and easy adjustable fuel pressure regulator that one could do themselves.
A rear end out of a 9C1 cop car will give you a better launch with its 3.42 gears.

Check around on third gen fbody sites where they workon the L03 and L05, as well as some Impala/Caprice sites.
 

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I think Holley makes a performance hig-flow Throttle Body for it. Seems like my friend put one on his Silverado a few years ago! Other than that, mabey get some headers and cool exhaust. TBI Performance is kinda a oxymoron, not to much going for the TBI engines.
 

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Tons of stuff.

Air Cleaner: Try getting a blower hat for a carb from a Vortec or Paxton kit and build some 3-4" intake tubing down to a cone filter. Install the IAT sensor as close to the filter as possible, sheild the filter from engine heat and out side water intrusion. A good welding shop can tig weld one up really nicely, you'd just have to cut and fit the tubing to match. Some nice turbo hoses can clean up the install at the joints. This will give hood clearance, see the intake section.

TBI: Holley p/n: 502-9 for '90-'95 TBI engines. 2" throttle body bores, 670 cfm, 79 lbs/hr injectors.
TB spacer (to intake) JEG'S p/n: 555-15401.
Injector spacer JEG'S p/n: 555-15410.

Fuel Pressure: GM compatable adjustable regulator. Adjust upto 16psi as needed. Get a new in-tank fuel pump.

Intake: Edelbrock TBI p/n: 3713 *TB bores will need to be enlarged to 2" dia for Holley TBI unit, no mods needed for OE TBI*
-Holley sells a TBI intake that fits 2" bores p/n: 300-66.
-GMPP p/n: 1249681 fits Vortec and Edelbrock E-tec heads. *requires TB bores to be enlarged for Holley TB, remote EGR tube from exhaust manifold to intake.

***Check hood clearance before buying***

Heads:
Stock style (may require inner 2 intake bolt hole mods, very minor): GMPP L98 heads p/n: 12556463, WP Sportsman II 200 p/n: 011150-1, Edelbrock p/n: 60859.
GM Vortec style (requires GMPP intake, EGR mods): GMPP stock vortec p/n: 25534421, hipo 12558060, Fast Burn 12497186, Edelbrock E-tec p/n:60979/60989.

Cam: Factory hydraulic roller, GEN I OE roller style. Tons of options here.

Short-Block: generally they have a nodular iron crank, powdered metal rods, and hypereutectic pistons. A good base, even though they are only a 2-bolt main block.

Exhaust: Impala SS manifolds or aftermarket headers. Edelbrock 66032/66033, Headman 68700/68706 (may need welding to fit).
Get a dual exhaust cross member from a '94-96 B-car.
Dual pipes are available from Dynomax p/n: 17375, Flowmaster p/n: 17118K, JEG'S 555-30410, Edelbrock 5670, OE dual pipes are available from NAPA (Tenneco Automotive bends them) but are special order.

Transmission: Upgrade the 4L60E with a shift improver kit B&M p/n: 70360; HD 2/4 gear servo TCI p/n: 376006; Governor recalibration kit (upshifts) B&M p/n: 20248; TV kickdown valve (more speed in o/d) B&M p/n: 70237.

Rear End: Your wagon has a 8.5" 10-bolt with 30 spline axles. Probably has 2.93 or 3.08 gears. I'd upgrade to 3.42s as a minimum, but I'd prefer 3.73 or 3.90s with stock 225/75/15 tires.
3.42 GM p/n unk, and Richmond p/n: 49-02781, 3.73 GM p/n unk, and Richmond p/n: 49-0041-1, 3.90 Richmond p/n: 49-0034-1.
All gears fit 2.73 and up carier.
Limited slip units: Auburn p/n: 542022, HD Auburn p/n: 542052.

I hope that helps, PM me if you'd like.
 

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Nailhead pretty much...nailed it. That would be the total list.
I wish someone made a nice stainless steel exhaust for us single pipers.

Yes, I have the police green silicone hoses.
 

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Nailhead pretty much...nailed it. That would be the total list.
I wish someone made a nice stainless steel exhaust for us single pipers.
You could always use 1/2 of an Impala SS kit with some mods, but it would be 2.5" max. I had a buddy who had a 3" pipe bent for his box Caprice, but the shop couldn't make a tailpipe in 3". With some mandrel bends and Universal tailpipe kit one could probably fab one up. He just dumped it under the car and it was very loud.
Cool when you're 19, lousy when you're 30 and have an office job.
 
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