How much horsepower do headers add to a Chevy 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.

Are all small block headers the same?

just about any set of headers will fit any sbc. the difference comes in the port sizes. they will all bolt up. chances are you have a set of 1 5/8 long tubes which is probably the absolute most common size headers.

Do Tri Y headers make more power?

This means that if the collector lengths are right for that engine package and the tube pairings match up well with the firing order, Tri-Y headers can produce improved power over similar four-into-one headers.

Can headers be too big?

If the headers are too small for the application they will cause restriction and increase heat in the engine. Too large a header will reduce torque output of the engine and increase the possibility of exhaust gas reversion—again increasing heat.

Are shorty headers better than long headers?

Shorty headers aren’t as loud as long tube headers, although they’ll definitely have better sound than your stock manifold. You can choose unequal length headers for better sound, but equal length is the way to go for consistent gains in performance.

How big are Shorty headers on a Chevy Hugger?

Shorty headers have a 1-1/2″ primary with 2-1/2″ collector. Complete with reducers, gaskets, and bolts. For “round” port small block Chevy cylinder heads. Will NOT fit angled plug heads. This header will NOT clear the ‘clam shell’ style engine mount commonly used as the stock type engine mounts on 1973-up Chevy applications.

What kind of headers do I need for a small block Chevy?

These S/B Chevy tight fit headers fit difficult applications where space is limited. Shorty headers have a 1-1/2″ primary with 2-1/2″ collector. Complete with reducers, gaskets, and bolts. For “round” port small block Chevy cylinder heads. Will NOT fit angled plug heads.

Can a small block Chevy Hugger fit angled plug heads?

For “round” port small block Chevy cylinder heads. Will NOT fit angled plug heads. This header will NOT clear the ‘clam shell’ style engine mount commonly used as the stock type engine mounts on 1973-up Chevy applications. Drivers side collector is 2″ from pan rail