We dyno test the new Lunati Bootlegger cam in a Chevrolet Performance 383 engine. Spotify is a digital music service that gives you access to millions of songs. The main difference between a 383 and the 350 is that the 383 torque comes in much lower. Peak torque was 482 ft-lbs at 5,300 rpm. Hoping to produce a little over 400hp should be no issue if these perform as well as last set. A big aluminum radiator provides plenty of capacity for warm days and long-tube headers feed a burbling dual exhaust system that sounds just about right. The 383 will accelerate most medium to heavy cars dramatically quicker than the common 350's on the market. In each case, peak torque was very close to 4,000 rpm and peak horsepower was at 5,900 rpm. 485 hp stroker. Comp Cam hydraulic roller cam 230/236 @ 50 A better than average 400 HP street performance engine. Both push more air and fuel into the combustion chamber. Our stock 5.7L heads had been previously upgraded with 26918 Beehive springs from COMP Cams, so they were ready for the new cam profile. In the gas world, Stroker engines are nothing new; the GM small-block 383 Stroker engines have been around for nearly 35 years. The test was four Holley XP series carbs, 650, 750, 850 and 950 CFM. The difference is so dramatic that you would estimate the engine to have a much higher horsepower rating than it actually has. These numbers make the AFD a good street/strip head. The 383 is built using a standard GM 350- cid engine block with a modified 400-cid crankshaft, which changes how far the piston travels. I am hoping these will work as well on 383 cid stroker. [Editor’s Note: This LM7 engine upgrade guide is part of a series of LS engine upgrade guides assembled by a team of LS experts at Summit Racing that we are sharing at OnAllCylinders. The cam swap increased the peak power output from 383 hp to 448 hp, a gain of 65 hp, but out at 6,300 rpm, the Hemi Helper offered an additional 100 hp! A 400 cubic inch v8 replaced the venerable 383, and with a 4-barrel carburetor, made a rather substantial 255 horsepower. ... A truly LEGENDARY muscle car with serious horsepower. Intro to LM7 Engines. You would be hard pressed to find a truck this nice! For this example, the radius is half the crankshaft stroke (1.5 inch) divided by a rod length of 6.000 inches for a factor of .25 or 383 pounds (1,534 x 0.25 = 383). Now this series of dyno pulls was on the Westech Performance dyno. Induction was an Active 2V and 950-cfm carburetion. Check out the impressive numbers on the horsepower from the test! Very solid running truck that can sit and idle for an hour and not get hot. At 7,000 rpm, AFD witnessed 555 hp from 383 ci. Base Engine 383 stroker Chevy Small Block: Edelbrock air gap dual plane intake. Factory 383 crate motors are easily tweaked to 500 horsepower and the average 383 build typically achieves somewhere between 450-475 horsepower in street trim while more serious race oriented versions easily top 600-650 horsepower. Another dyno test showed even better results with a 393-ci stroker: 666.1 hp at 6,900 rpm along with 534.8 ft-lbs of torque at 5,400 rpm. If you are looking to enhance both horsepower and torque, then look no further than cubic inches. 210 cc heads. The major difference between these two Mopar legends is the deck height of the block: 9.98-inch for the 383 and 10.725-inch for the 440. • 383 V8 Strocker • Rancho Suspention RS 5000’s These base long block crate engines come with valve covers, front timing covers, and oil pans--you … This is my 2nd set of DNA heads and 1st set works well on the 427cid stroker engine. How do you get serious horsepower from a crate engine? Find BluePrint Engines BP3961CT BluePrint Engines GM 396 C.I.D. My loss, your gain! New 383 power plant is extremely throaty and peppy and is a blast to drive. 8,256 below average ; ... Chevelle 1965 Chevrolet Chevelle model in mint condition Blue metallic exterior with a Black interior Equipped with a 383 Stroker V8 RWD Gas and an 700r4 4-Speed Automatic transmission Currently with less than 5000 Miles on it . For a primer on the entire LS engine universe, read LS Engines 101: An Introductory Overview of the Gen III/IV LS Engine Family.]. Get a super charger or turbocharger. 485 HP Stroker Base Long Block Crate Engines and get Free Shipping on Orders Over $99 at Summit Racing! Meet the … With the proper setup, you can count on a 6 to 8 percent increase in horsepower per pound of boost. "Stroker" combinations -- using crankshaft strokes longer than standard -- Here are a few good reasons why we think the 427/434 engine is a better choice than the 383 or 406 engine. Today the 383 is as commonplace as as any original Chevy V8. This is not your average bear, packing a General Motors 383 CID V8 Stroker engine under the hood which is not even close to the power that was put out in the 60's. This factor is added to the original inertia force for the upward stroke and subtracted on the downward movement. Drop in BluePrint's GM 396 c.i.d. Its always priced really well to sell quick (3 days average). Reliable enough to be a daily driver, yet nice enough to keep as a collector car. The average stock 350 with cast iron pistons can handle seven pounds per square inch, which results in about 50 percent more horsepower. This sweet vette has not been on a dyno so I do not have exact Horsepower ratings, but I … Bucket Seats Air Conditioning