Question: Are Vortec Heads Worth It?

How much HP gain from porting heads?

Head porting is probably the single most critical piece of adding HP.

you can gain 20-30 from a really good port job..

Can you put 400 heads on a 350?

The only difference is that 400 heads have steam holes drilled in them for the 400 block. You can put 400 heads on a 350 but you should not put 350 heads on a 400 without drilling the steam holes.

Do heads add horsepower?

This will give a base figure to compare to once the head has been fully ported and polished, leading directly to a gain in horsepower. … Once power increases from other methods have been maxed-out to a point, head porting can be a great next step to producing another incremental power jump.

Why are Vortec heads better?

The L31 Vortec heads have larger ports than the older Gen I cast steel heads, so they outflow the older heads. The Vortec heads are a little bit lighter than the older heads and have a “kidney” or “heart” shaped combustion chamber that is more efficient than the double hump chamber.

What is so special about a Vortec engine?

The redesigned cylinder heads of a Vortec engine provides for improved combustion efficiency. The intake ports (reshaped) of the engine provides for better cylinder filling and fuel atomization by promoting higher air flow velocities to the combustion chambers via the ports.

How much horsepower do performance heads add?

A good set of heads w/ headers should net you 30-35rwhp, a bit more with tuning. A good set of heads w/ headers should net you 30-35rwhp, a bit more with tuning.

How much horsepower will camshaft add?

Other cams can add as much as 50 HP or more, but the more power you get from a cam, the higher up the powerband the power usually starts. If you have a 224/224 cam (instead of my 205/212), you may have to wait until 2500 or 3000 RPM to get power, but it will be more.

Does aluminum heads increase HP?

Surprisingly, they found that both heads produced not only the the same power output but also required the same amount of timing and fuel jetting. The astonishing part was that the aluminum heads did nothing to allow for ignition timing changes as one would expect.

Are Vortec heads good?

Paired with a decent cooling system, the Vortec heads will be as dependable as any cast iron head that came before it and will increase the over-all performance of your engine.

How much HP do Vortec heads add?

The original answer was related to modifying the heads to accept more valve lift. Our original answer combined the Chevrolet Hot cam with a set of these Vortec heads. Our estimate then and now is around 350-375 horsepower. Your question relates to porting the Vortec heads to improve the flow, which is a great idea.

What’s the difference between 906 and 062 Vortec heads?

The only difference between the #062 and #906 Vortec head is in the exhaust seat of the HD/1-ton truck #906 version, as described above. The #062 has a 3-angle grind on a standard induction-hardened seat, as does the non-HD #906 head.

Will Vortec heads work on older 350?

night rider Veteran Member. Yes the 1996-02 L31 350 vortec heads will bolt to ANY gen 1 350 engine.