330 hp vortec heads

[socor7]

I was wondering if any one has experience with the gm 330 hp engine with vortec heads and fitting it under and orginal hood of a c3 corvette. I am also looking at using a vortec intake as well, if any one knows of a combination with this engine that will fit let me know. I want more hp than 290 but don't want to by the zz4 355 motor.


Thanks

Drew

 

[bossvette]

I was wondering if any one has experience with the gm 330 hp engine with vortec heads and fitting it under and orginal hood of a c3 corvette. I am also looking at using a vortec intake as well, if any one knows of a combination with this engine that will fit let me know. I want more hp than 290 but don't want to by the zz4 355 motor.


Thanks

Drew

It should fit the ZZ4 is in a lot of C3's so the 330 should also fit

 

[socor7]

vortec heads

I am worried about the intake height and the stock hood, because of the vortec heads it requires a special intake.


Thanks

Drew

 

[gooney0]

Vortex

When I was shopping for motors, I couldn't use the Vortex head anyway. They don't fit my 6 exhaust-bolt manifolds. Votex heads have 8 bolts, and also allow for EGR and such.

The ZZ4 is great! I don't know if emissons would be an issue for you with a '76. Depends on the state I guess, and what emissions equipment comes on those models.

The ZZ4 has a LOT of torque! (406lbs) and a very flat powerband. Great for overall street driving. ( as opposed to a high rev engine, or turbo )

Sorry, don't know about hood height.

 

[socor7]

exahust

On the heads I have found they are 6 bold exahust pattern

is this true?

 

[JohnZ]

All small-block Corvette heads have six exhaust manifold bolts, except for the '78-'82 462624 350 heads and the '80 14014416 305 heads; they have an extra seventh hole added at the end, but it wasn't used for anything on Corvette applications.

 

[80convertible]

I run Vortec heads on an Edelbrock vortec intake with no problems.

 

[socor7]

what type of intake and carb setup are you using and what kind of air cleaner?



Thanks for the info.

 

[80convertible]

what type of intake and carb setup are you using and what kind of air cleaner?



Thanks for the info.

I'm using a Edelbrock performer vortec intake, Carter 625 cfm carb with standard 14" air cleaner with 2.5" heigh filter. A dropbase air cleaner can also be used to gain additional clearance.

 

[socor7]

what I currently have is a eldelbrock performer intake with carter afb carb on traditional cast heads wtih a 1/2 spacer 3 in thick filter and a drop base and i barely have enough room for that, and the vorteck intake carb base sits like 1/2 inch higher then the performer intake I currently have, so if I remove the spacer it will be very close.