Can you use Vortec heads on TBI?
Can you use Vortec heads on TBI?
ΜΟΛΩΝ ΛΑΒ& Yes you can. However, you are going to have to use a different intake manafold. The Edelbrock 2114 will work with an adapter to fit you’re factory TBI unit.
Will Vortec heads fit a 305?
There’s both 350 and 305 vortecs. Heads from both these engines would physically bolt on to a 305, but bolting a set of 350 heads onto a 305 would hurt performance more than anything. The heads off a 305 vortec are actually pretty decent heads for a 305, and if you’re set on vortec heads, those are the ones you want.
How much horsepower does Vortec heads add?
Most of these small block Chevy heads offer a power increase of around 40 hp, and even the iron Vortec heads were worth 20 hp over stock. The two best small block Chevy heads in terms of peak horsepower were worth more than 60 hp.
What’s the difference between Vortec and TBI?
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.
How much horsepower can you get out of a 305?
So a 305 up against a 350 (even at the same horsepower) will always lose to the larger engine because the 350 will make more torque. I completely agree that a 305 can be built to make 450 hp.
How can I get more power out of my 305?
Bolt-on Upgrades
- Replace the exhaust manifold. The stock exhaust manifold of the 305 engine restricts air flow from the engine increasing back pressure.
- Replace the intake manifold and carburetor.
- Add cold air induction.
- Replace the computer chip.
Can you put a carb on a TBI intake?
Basic Hardware. The most basic things you’ll need to convert from TBI to a carburetor is a carb and a matching manifold. You could try to track down a used stock manifold, but aftermarket aluminum manifolds like the Performer RPM make more power, are lighter and will only run you about $60.
What is the best TBI unit for a Chevy 305?
6. The TBI unit. The stock 305 and 350 TBI unit has 2 (1 11/16″) bores which flow 450 cfm of air. Up to 230hp engines that air flow is fine. you can do the ultimate TBI mods to the stock 42mm TBI unit and get that air flow up to 500cfm without increasing that bore diameter which is plenty for any 305 engine that you can run with TBI.
What TBI mods can I add to a stock 305?
The TBI unit. The stock 305 and 350 TBI unit has 2 (1 11/16″) bores which flow 450 cfm of air. Up to 230hp engines that air flow is fine. you can do the ultimate TBI mods to the stock 42mm TBI unit and get that air flow up to 500cfm without increasing that bore diameter which is plenty for any 305 engine that you can run with TBI. 7. Injectors.
Where is the casting number on a Chevy 305 head?
Those are the last 3 digits of the casting number on top of that head under the valve cover. These heads flow as well as pretty much any other 305 compatible head out there and respond very well to some porting and good for nearly 30hp over the TBI 305 heads.
Is it possible to modify a Chevy 305 engine?
Honestly, I don’t recommend modifying a 305 engine to this level. However, should you feel its absolutely necessary then find yourself a set of 416 casting or 081 casting 305 heads. Those are the last 3 digits of the casting number on top of that head under the valve cover.
