Big Block 1980 Monza Spyder

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Re: Big Block 1980 Monza Spyder

Postby megavega » Mon Mar 11, 2013 11:59 pm

youll need to build your own headers, but with setting it back in the chassis, it all gets easier as theres more room. headers are easier then you think to build.

I also think you can keep your factory heater set up if your moving the firewall back you should have room then.
1972 hatchback, 28,000 orig miles, 427BBC/twin T4 turbo's/T56 six speed/big wheels, lowered down pro touring style-work in progress....

1973 vega wagon-under the blue flame knife.
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Re: Big Block 1980 Monza Spyder

Postby Milan » Fri Mar 15, 2013 6:16 pm

I will not be able to use the heater/AC box maybee a Heater only box is smaller and might fit. Guess I will need to find out later. I will post pictures as soon as i resize them.
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Re: Big Block 1980 Monza Spyder

Postby Milan » Fri Mar 15, 2013 6:26 pm

I save the jpeg below. Need to figure out how to make it appear in the text block next...
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Re: Big Block 1980 Monza Spyder

Postby Milan » Fri Mar 15, 2013 6:32 pm

Milans spyder2013-03-02_18-25-19_623 (1024x577) (640x361).jpg
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Re: Big Block 1980 Monza Spyder

Postby megavega » Mon Mar 18, 2013 2:01 pm

oh, thats a differnt idea of moving the firewall back then what I was thinking, I thought you were going to move the whole firewall back as 1 unit then your heater box and all would move back complete. doing it the way you cut it now, I am not sure how youll achieve that.
1972 hatchback, 28,000 orig miles, 427BBC/twin T4 turbo's/T56 six speed/big wheels, lowered down pro touring style-work in progress....

1973 vega wagon-under the blue flame knife.
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Re: Big Block 1980 Monza Spyder

Postby Milan » Mon Mar 18, 2013 8:54 pm

Yeah...I always have been a bit "different" :-)
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Re: Big Block 1980 Monza Spyder

Postby michael allman » Mon Mar 18, 2013 9:53 pm

Look at 1867 bbc corvette headers,installes a 454 into a 85 corvette , they fitted real close to the block and did not hang down to low
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Re: Big Block 1980 Monza Spyder

Postby Chevyforever » Fri Mar 29, 2013 9:02 pm

We put a BB in a '78 Monza stock front clip and it was a MAJOR pain in the a$$. The car is is drag strip only and we had to cut/bang,dimple,grind so many places. we almost gave up at one point the steering was exceptionally difficult, HKR hdrs fit poorly,have to use a remote oil filter mount, modified a new set of V8 front coils,put a rack and pinion in,has tubular upper control arms,you have to be a contortionist to change cyl # 7 spark plug,it runs really hot even with a super alum Griffin racing rad,.... and on and on ... (13 to 1 compression) Made the trans cross member TH400 and also has 9" Ford 4 link and rear tube chassis. It does run 9.60's though
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Re: Big Block 1980 Monza Spyder

Postby Chevyforever » Fri Mar 29, 2013 9:27 pm

Yes it is done but it is not an easy project to complete. Just sayin'
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Re: Big Block 1980 Monza Spyder

Postby Chevyforever » Fri Mar 29, 2013 9:36 pm

another couple pics
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Re: Big Block 1980 Monza Spyder

Postby Chevyforever » Fri Mar 29, 2013 9:40 pm

Lots of hours to complete ...
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Re: Big Block 1980 Monza Spyder

Postby Smiley » Sun Mar 31, 2013 1:57 am

Hooker big block Vega headers fit with the motor in the same location as the small block. They require a remote oil filter housing, the large tubes are so close to the oil pan they heat up the engine oil while driving on the street.
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Re: Big Block 1980 Monza Spyder

Postby Milan » Sat Aug 10, 2013 6:54 pm

I picked up some 2nd gen Camaro BBC Headers at a swap meet for $25.00 and ordered some pre-bent tubing. It looks like the flange portion of the headers with upper pipes will be pretty simple. I will even be able to use a few of the stock flanged pipes in their entirety with out modifications. I will get some pictures posted soon.
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Re: Big Block 1980 Monza Spyder

Postby Milan » Wed Oct 09, 2013 9:13 pm

I have the 2X4 box tubing frame rails installed and mig welded inplace. I will be taking out the engine to finish the new mounts and tie the front end into the frame rails. The headers have been coming along nicely. I ordered some J pipes from the speedshop and have been tacking things together. I have decided I will use slip joints on a few if the header tubes to make servicing things a bit easier. I will try and upload pictures soon.
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Re: Big Block 1980 Monza Spyder

Postby Milan » Wed Oct 09, 2013 9:44 pm

More pics. This time of header Tack welds
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IMG_20131009_211716_554 (240x135).jpg
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IMG_20131009_211826_792 (240x135).jpg (43.02 KiB) Viewed 618 times
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