The aftermarket valve covers only have an oil fill cap but other than that no accessible breathers. Do I need to run a breather? In short, the best engine for your LS or Vortec swap is the one you can afford. To test if your valves are good, you can try performing a compression test. If there is fuel in the carb bowl, it should start and run long enough to pull fuel through the system. The LS9 produces a ridiculous amount of power with its supercharger. As far as you need be concerned, if the Check Engine Light does not show, the car does not overheat as indicated by the temperature gauge or steam from under the hood and if the heater produces enough heat then you need not be concerned. LS Swaps, what is needed from a fuel line perspective. Exhaust leaking before it exits the system will result in a lower back pressure, which in turn may cause the bike to run hot. The transmission is often forgotten until problems arise. In my case, I was forced to swap the engine in my 1961 Cadillac Series 62. Open the VCM Scanner>Histogram display and do a nice 0-70 or preferable 0-100mph run. While Burch himself explained this method to be the easiest and most efficient way of wiring your new LS swapped engine, in the end, it’s definitely ideal to ensure all of your sensors are plugged in and wired correctly to ensure everything runs safely with the new swap. in the C-5 Corvette . Have run almost this low on loose builds with stock pumps in the past - like 5-7psi hot idle at 800-900rpm with no ill effects but still prefer something around 15psi hot @ 100-105C in the sump. To check an electric motor cooling fan, remove the key from the ignition switch and away from the car. This is a discussion on What do stock LS1's dyno/run in the 1/4? 04 gto 243 gmpp cnc ported heads , hot cam 219/228 .525 112, kooks 1 7/8 l/t,lm-1wb, sending unit for fuel press. Its original 390 V8 punched a hole through itself and left a billowing cloud of blue-black smoke behind. There’s no question that the LS3 is better than the LS1. The LS1 F-car front drive will work in most hot-rod applications. Coolant system failure can eventually cause major engine damage as running the truck hot can lead to head gasket failure or loss of power eventually causing the motor to stop running. Millions of LS engines run ALL DAY LONG at 215* and never skip a beat. If it sounds rough or is difficult to turn it has gone bad and needs replacement. Final Thoughts. Save Share. I’ll leave the rebuild vs. engine swap debate out of this article and cut to the chase, but I will say this: yep, I swapped it with an LS1 engine. It is best to flush the transmission … The LS1 engine is a 5.7L, and it featured an all-aluminum design. I ran 11.005@129 about a week ago now with 175 shot of spray on an LS1 with an LS9 cam and ported 243 heads. What do stock LS1's dyno/run in the 1/4? LS1 Swap. Its common in recent years for cars to be found with cats that have collapsed and an LS1 … Usually about a few teaspoons worth. Reason 3: Exhaust leak. Engines are made to run a little warmer now than in the past due to emission control requirements. They called it the “Gen III small-block” now known as the LS1. On a similar note the catalytic converters may also be orginal which will mean at 10 years old they will be very low flowing and holding the engine performance back, making it run hot etc. If there isn't, you can get fuel into it through the vents. Then reach in and spin the fan blade by hand, it should "freewheel" and spin easily. Run one to the rear, two to the dash area (if you have a lot of accessories), and one to the front. As for myself, I run Amsoil 5w-30 in both of my LS vehicles; a Magnacharged RCSB ’03 Silverado with an LM7 and in my bolt-on ’01 Camaro SS. Many gearheads have noticed that keeping the engine around 180 degrees during normal operation coaxes more power out of an LS3. It's not. The compression should be lower than manufacturer specs. Step 1 Inspect your new block. Should I run E85? Red 1994 LT1 A4 Camaro Z28 hardtop SS clone, pacesetter mids, custom comp cam, 1.7rr, AFR 180cc heads, 3:73 gears, LS1 drive-shaft, 4000 stall. Troubleshooting your coolant system, when the … It is generally acknowledged that LS engines respond better when they run cooler. However not everything is fine and dandy because E85 comes with some real drawbacks too. As tested by Hot Rod magazine, the LS3 intake is one of the best OEM intakes ever produced on any car. When it comes to oil filters I use either an Amsoil, K&N or a Wix and as far as intervals, I change the oil every 10K or 1 year, whatever happens first. Introduced in January 1995, it is a "clean sheet" design with only rod bearings, lifters, and bore spacing in common with the longstanding Chevrolet small-block V-8 that preceded it as the basis for GM small-block V-8s. Late-model Lubrication – Should You Run Higher Viscosity Oil? The LS based small-block engine is the primary V-8 used in General Motors' line of rear-wheel-drive cars and trucks. Plop just about any cam in an otherwise stock LS3 and watch the power soar. To utilise the existing LS1 harness and LS1 computer the simplest way is to convert the new block back to 2005 LS2 spec. Not only has it powered the Corvette since 1955, but it was largely responsible for Chevrolet's resurgence in the 1950s and 1960s. If not, it takes roughly 100 miles or 50 minutes of driving to set the LTFT's. Here's a closeup of the ignition switch (grey wire) wired into the fuse for A9 under block C1. An even more accurate way is to perform a so-called leak-down test. One of the reasons the 4th gen did so good at the tire patch was the twiggy 7.5 10 bolt rear. B. The LS3 family is very similar to the LS1. 215 is barely warm. The F- and Y-body car systems use a single belt to run everything but the A/C compressor, which runs on its own belt to minimize NVH. This can occur as a result of high cylinder temperature and/or pressure that … Open the VCM scanner, do not worry about resetting the fuel trims they should be learned at this point. Just use an eyedropper and squirt the fuel down the vent filling the bowl. Heavy #2 gauge cable should be used to connect the battery negative terminal to the engine block or starter mounting bolt. I expect a cruising RPM of 2500-3000, with a redline of 5000rpm. If this fan stops operating the engine will overheat or run hot. That is why the first mod that many do is to install a 160 degree thermostat. The LS1 uses a cathedral port design (as do LS2, LS6, and LQ truck heads) while the LS3 uses rectangular ports. Here are the part numbers to assemble a complete front engine accessory drive (FEAD). The common thread throughout most of the Corvette's 44-year life has been Ed Cole's fabled small-block V8. Quick overview...-Oil down cylinders and make sure it turns over by hand. The Chevrolet Silverado is a rugged truck that is made for a tough workload. Given this situation, cam upgrades for the LS3 have become hot sellers. Look at knock retard FIRST. LS1 Engine - As found . It seems for many people that the scariest part of the modern engine swap is the wiring harness. I feel this setup will run 10.8s at best with street suspension. By budget, we mean that you spend less than $750 on a simple, bolt-on that brings actual performance improvements. I will assume you are running an 8.5 10 bolt in yours, so bone stock the LS1 would probably do right at 300RWHP in your second gen. What is the biggest stall converter you can run with the LT4 Hot cam for optimum performance on the street/strip. The LQ4 and LQ9 6.0-Liter Gen IIIs I had the stock tune for a while and it seemed to run ok but it would be hesitant from a stop to say 50 to 100% throttle and the motor would almost die. So my questing is, I have an LS2 and just got rid of my stock valve covers because I relocated my coils, and installed some smooth tall valve covers. One of the best things about the Chevy LS1 engine is how incredibly easy it is to modify on a budget. First, we should define the terms “detonation” and “pre-ignition”. One reason for this high oil consumption is oil volatility. Welcome to Hot Rod fuel hose, one of the most common uses for our AN hose and AN fittings is for guys doing LS swaps. It’s a fact: GM LS engines consume excessive amounts of oil. If you have an automatic transmission in your vehicle then you should have the transmission fluid flushed to keep your vehicle well maintained. 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