Will Vortec Heads Work On Older 350?

Can you convert a TBI to a Vortec?

That said, TBI can be adapted to a Vortec headed engine by using a GMPP or Edlebrock intake that bolts to Vortecs at one and and TBI at the other.

The other simple swap is to use the Swirl Port heads off earlier engines and the TBI bolted to a Vortec bottom end..

How much HP can a 350 TBI handle?

The 350 TBIs only flow like 475 cfm, but can be bored to flow ~650 cfm. The bored TBI with the bigger injectors (96 lbs), the right chip, and a bumped up fuel pump (20 psi), should be able to support 345 hp (according to John’s calculations).

What is the difference between a Vortec 350 and a regular 350?

The Vortec combustion chamber is a kidney-shaped design that promotes better combustion and will have the spark plug located near the center of the chamber. The regular 350 head utilizes a 90 degree intake bolt angle while the Vortec makes do with a 72 degree bolt angle.

How can you tell if a 350 head is a Vortec?

The easiest way to identify a Vortec head is by the sawtooth pattern cast into the front. Look for casting number 12558062, but avoid casting number 10239906, which has a modified exhaust seat and loses 20 percent of its flow at 0.120-inch lift.

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.

Which is better TBI or carb?

A TBI system won’t necessarily make more horsepower than a carburetor. … Even so, a TBI system will start, idle, run and respond much better than a carburetor, and will maintain a near perfect tune over a much broader range of temperatures and operating conditions.

Can you put a cam in a TBI 350?

Cam, stage 2chip and exhaust mods are going to net you a good 50-60hp on that pathetic stock 180hp 350 TBI motor. … Roller cam will give you the same power as a flat tappet cam that is about 15 degrees duration bigger or about 10-15hp more than the same duration flat tappet cam.

Can I put Vortec heads on a 350 TBI?

If you wanted the Vortec heads on your engine then you would have to buy a new intake manifold to be able to get the TBI set-up onto the heads. … But you would need to buy a TBI intake manifold to bolt up to the Vortec heads. You can’t by a spacer for the Vortec intake manifold.

How much HP can Vortec heads make?

GM Vortec cylinder heads are used with a Comp Cams Xtreme Energy 262° camshaft to produce 390 HP and 426 ft-lbs of torque. These numbers are made with 87 octane, while most of the combos on my site used 92 or 93 octane gasoline.

What is the difference between TBI and vortec?

The differences between them are that the TBI had the injectors right in front of the throttle plate, where the Vortec placed the injectors behind the throttle plate; and the TBI was a speed density system, whereas the Vortec used a mass airflow system to manage the fuel-injection system.

What year is the best Chevy 350 engine?

L31 (2002) From a purely technical standpoint, the most recent version of the Chevy 350 would naturally be the best of the bunch. Marketed as the “Vortec 5700” engine, but known internally by the moniker of L31, this engine was used primarily in GM vans and trucks until 2002.

How big of a cam can I put in a stock 350?

the cam can be as big as you want nearly but if it doesn’t match the CR, intake etc. it’s pointless and will run bad. if you want the most power get it to match what you have now. the 270h should have around 9.5 or so CR and they don’t make it solid that i know of.

Are Vortec heads worth it?

vortec heads are one of the cheapest hp gain and they’ll give you better gas mileage. For the center bolt valve covers the ones for the vortec heads are taller then the center bolt valve covers you find on non-vortec heads.

How do you get 300 hp out of a 350 TBI?

300hp from a 350 is easy, regardless of what induction you use. just match up you cam/heads/intake like normal and put a upgraded tbi unit on top of it. then you just need a custom prom and you are done.