'79 Firebird Engine Swap

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jrober0614 - 05 Nov 2006 04:14 GMT

Has anyone done a Pontiac 301 to a Chevy 350 engine swap? I have the
350 SBC mounted in, but the engine seems to be sitting too high in the
compartment. I can shut my hood as long as I take the air cleaner off.
Is there a special mount or adapter that I am suppose to be using to
get the engine to set low enough in the compartment? I would prefer not
putting on a cowl induction hood....
Any help would be greatly appreciated....

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Terminal Crazy - 05 Nov 2006 08:48 GMT

> Has anyone done a Pontiac 301 to a Chevy 350 engine swap? I have the
> 350 SBC mounted in, but the engine seems to be sitting too high in the
[quoted text clipped - 3 lines]
> putting on a cowl induction hood....
> Any help would be greatly appreciated....

What manifold is on the motor?
I swapped a corvette motor into a friends 6 pot camaro. We used a 1" carb
adaptor to fit a 600 CFM Holley and a big 14"x2" air filter. This actually
came flush with the top of the bonnet(hood) He then decided to go with one
of those huge aeroscoops to cover it.

My 305 fitted with the stock air cleaner no problem .

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terminal_crazy@sand-hill.freeserve.co.uk

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jrober0614 - 07 Nov 2006 05:46 GMT

I just have an edelbrock rpm manifold. Is there a difference in the
frame mounts that mount to the engine between a 350sbc and a 454bb? I
believe my mounts came off a 454bb engine.

> > Has anyone done a Pontiac 301 to a Chevy 350 engine swap? I have the
> > 350 SBC mounted in, but the engine seems to be sitting too high in the
[quoted text clipped - 11 lines]
>
> My 305 fitted with the stock air cleaner no problem .

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Terminal Crazy - 07 Nov 2006 07:03 GMT

> just have an edelbrock rpm manifold. Is there a difference in the
> frame mounts that mount to the engine between a 350sbc and a 454bb? I
> believe my mounts came off a 454bb engine.

I can't help you with that I'm afraid, I've never been able to play with a
big block over here.
OTTOMH though, the motor can't be much higher than stock or the tranny
(auto ?) wouldn't fit under the tunnel. Does the tranny sit level or
tilting down at the back ?

Another thought is a lot of stock air cleaners are shaped so sit lower than
the top of the carb and the lid can be very close to the top of the carb.
Although they restrict air flow, they might give you an inch or two.

I had the Edelbrock performer dual plane which I'm sure is inches taller
than the stock 2 barrel manifold. If you wan't me to check, let me know and
I'll root it out & measure it.

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Mitch - 1995 Z28 LT1 M6 terminal_crazy@sand-hill.freeserve.co.uk
Lancashire England http://www.sand-hill.freeserve.co.uk/terminal_crazy/

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Charles Bendig - 07 Nov 2006 13:13 GMT

>> just have an edelbrock rpm manifold. Is there a difference in the
>>frame mounts that mount to the engine between a 350sbc and a 454bb? I
[quoted text clipped - 13 lines]
> than the stock 2 barrel manifold. If you wan't me to check, let me know and
> I'll root it out & measure it.

Edelbrock's catalog or their website should have that info on it.
Charles

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