Doing a rebuild on your 327- or 350-cubic-inch small-block Chevy can save you cash and, if you use the right parts, make great power! … Even if your typical 350-horsepower small-block won’t impress people at the local cruise night, it still makes plenty of power for your typical hot rod.May 11, 2021
You might not have to worry about the motor in your car for a long time if you do it right. If an engine rebuild is done properly, it can last over 100000 miles! And even just maintaining the vehicle and doing some of the work on its own will help keep that mileage up as well.
The Chevy 350 engine is a 350 cubic inch (5.7-liter) small block V8 with a 4.00 and 3.48 inch bore and stroke. Depending on the year, make and model of a car, horsepower ranges from approximately 145 to more than 370.
The 350 (5.7) was born in 1967, when Chevy lengthened the 327’s stroke. … In 1976, Chevrolet introduced a new emissions-friendly 305-cubic-inch small-block V8. Big blocks and the small-block 400 were dropped from the car line, and the 350 took over as the largest engine offering for most of GM’s passenger cars.
You “can” get 500HP out of a 350 BUT because it is a small cubic inch engine it IS going to be peaky and won’t have much torque. … As soon as that chain gets stuck, it’ll bog down and stop because it doesn’t have enough “torque” to rip that chain loose to keep cutting.
$600 to $3,500 … depending upon how involved you want to get with the thing. Generally, for a “good” rebuild that doesn’t really get beyond ‘mild 350’ standards, you’re looking at about $1,600-2,500 depending upon location.
A scheduled overhaul is almost always less expensive than a new engine. Rebuilding to repair is usually cheaper than buying a new engine, too. You may save up to half of the cost of a new engine by rebuilding. However, sometimes rebuilding is not a good option.
All things considered, rebuilding an engine is no small task, however, with the right tools, knowledge, and time, this is a task that is very possible to do on one’s own.
It has been declared that rebuilt engines are better than the engines originally installed at the factory, dependable, reliable and backed by warranties. Your most reliable and cost-effective choice for engine repair is to choose to replace your current engine with a rebuilt engine.
|Year||Make||Power (hp / kW @ RPM)|
|1997-2000||Chevrolet||345 / 257 @ 5600|
|2001-2004||Chevrolet||350 / 260 @ 5600|
|1998-2000||Chevrolet||305 / 227 @ 5200|
|1998-2000||Chevrolet||320 / 242 @ 5200|
383 Stroker Performance Specs The latest version of this crate engine is able to reach 450 horsepower and 450 lb-ft of torque.
Power output and torque ratings have, of course, varied quite a bit throughout the years. However, the original Chevy 350 put out 295 HP and 380 lb-ft of torque. Another fun fact: the engine’s exact displacement is 349.85 cubic inches (5.7 L if you go by metric).
The best-known small block V8 in GM’s stable, the Chevy 350 engine is considered one of the 20th century’s best engines. Sought after for its durability, quiet operation and performance, the 350 has also earned a reputation for reliability and usability in a variety of applications, including boats.
The potent 327 L84 held the title as the most powerful production small block Chevy engine for nearly 30 years! That’s an impressive feat for an engine developed way back in 1964, especially considering it gave up precious cubic inches to the larger small blocks developed later on.
GM had its own version of the 400 motor but ot is considered a small block, and not a big block. Just by . 1 Liters actually, if you want to be technical.
COMP Cams CL12-600-4 is the biggest cam for stock 350 and plays its role as the topper since 1976.
There was an immediate increase of 16 horsepower and a more dramatic increase of 53 foot-pounds of Torque after Chevy High Performance Magazine installed a set of Hooker heads on a stock engine.
229k miles is not unheard of for a properly maintained 350. You could do a compression test and leak down test to analyze the health of the motor.
|True 383 Power|
If it was rebuilt correctly, a completely stock bottom end – main bolts, cast crank, stock rods, cast pistons, is good to around 350 HP.
Use the suffix code on the block and determine if the engine is original or not. That code can’t always tell you its a 4 bolt but if its the origianl motor in a 4 wheel drive 3/4 ton its almost a guarantee its a 4 bolt block.
A 383 stroker has a 0.030 over bore of the stock 350, giving you 4.030 as a bore diameter. Putting the 400 crank in the 350 increases the stroke to 3.750. Other than that, all the other dimensions stay the same. If you do the math, you will get 382.6; round up and you have 383 ci. Refurbishing the Rods.
420 lbft of torque at 2500 rpm, about the most you can get out of a 350 for reasonable money. For torque there’s no need to replace the heads or up the compression ratio, which you would do for high-end horsepower, but heads and machining are a lot more money than a cam with new lifters and springs.
When rebuilding the engine, make sure you have plenty of room to lay out and organize all the parts. … The whole project can be completed in the engine bay without disconnecting the transmission and engine mounts to get the heavy block out of the car.
An average engine replacement on a new vehicle will take between 15 to 25 hours of labor. The amount of work that the shop will have to do to put old engine parts on the new block is where you could end up losing money if you purchase a long block or short block.
If you have a high mileage engine and want it to make more power, you should consider rebuilding it before you throw speed parts at it. … A freshly rebuilt engine will be making more power than the same engine that’s been chugging along for hundreds of thousands of miles without any major work done to it.
Cracked engine blocks can be repaired, but usually require replacement, either with a rebuilt engine, a new engine, or a salvage engine. While there are a number of problems that can result in a cracked engine block, most involve excess heat, which is usually caused by an issue with coolant.
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