How much horsepower do headers add to a 350?

The length of the primary tubing determines the effective rpm range, but headers can be worth 15-20 hp on the right application. Run on our restrictive two-barrel 350, the headers improved the power output to 248 hp and 365 lb-ft of torque, with consistent gains through the rev range.

How much horsepower do performance headers add?

In general, a quality set of headers should provide an increase of approximately 10-20 horsepower, and if you’re restrained with your right foot, you may even see an increase in fuel mileage.

Can headers improve performance?

Headers are one of the easiest bolt-on accessories you can use to improve an engine’s performance. The goal of headers is to make it easier for the engine to push exhaust gases out of the cylinders. During the exhaust stroke, a good way for an engine to lose power is through back pressure.

What kind of engine is in an Oldsmobile 350?

(ANNOUNCER)>> TODAY HORSEPOWER DISCOVERS THE POWER SECRETS OF THE OTHER ENGINE FROM OLDSMOBILE. IT’S THE 350, A SMALL BLOCK ROCKET FOR A SMALL SIZE POCKET BOOK. ( commercial – music )>> COME AWAY WITH ME LUCILLE IN MY MERRY OLDSMOBILE. (JOE)>> AN ORIGINAL MUSCLE CAR, WELL SOME PURIST SAY SO.

What kind of intake manifold does a Olds 350 have?

Time will tell. The intake manifold will be an Edelbrock Performer RPM Olds 350 (PN 7111). This will be modified along with the heads to create a matched performance package for power between 2,500-6,500 rpm.

What can I do with an old Olds 350?

Subscribe to PN+ and watch all episodes commercial free. This time HorsePower rescues a discarded Olds 350 for a budget build. With a frugal selection of performance upgrades, the goal is to double the original factory horsepower output.

How many horsepower does a new Oldsmobile have?

THE NEW VALVES ARE ALSO LARGER THAN STOCK. IN FACT THESE SPEC OUT AT 2072 INTAKE AND THEN 680 ON THE EXHAUST SIDE. RUNNER VOLUME, WELL IT’S ALSO IMPROVED AS WELL, 188 INTAKE, 106 EXHAUST. NOW THESE HEADS FIT UP TO BIG AND SMALL BLOCK OLDSMOBILES ALL THE WAY UP TO THE 455.