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LSx Guru
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53 Posts
Discussion Starter #1 (Edited)
Hey guys, I picked up this car from the original owners family back in February of 2014. It's a rare factory 350/5.7 car (only 3300 built), all the other V8 Monza were powered by the 262 or 305 in 1977-1980. Unfortunately the original engine had long been ditched in favor of a '72 LT1. So because the car isn't original anymore anyway, perfect candidate for a LSx swap.

After towing the car home (car was in a rural town, a hour away) I immediately starting ordering parts for it, mostly stuff to convert the lame and rare 4x4" lug pattern to typical GM 5x4.75" pattern. The front non-vented front rotors, calipers, and spindles were ditched in favor of new 2" drop spindles, vented-slotted/crossdrilled rotors, calipers, and stainless braided brake lines. All the front braking pieces are for a S10. I also bought some aftermarket S10 axles for the rear and had a buddy weld up and redrill the new lug pattern on the rear drums. Then of course I had to buy new rims (15x4" & 15x8") and tires (165/80/15 & 235/60/15") for the new setup.....


A few weeks ago I pulled and sold the LT1 to a buddy of mine and had the original TH350 rebuilt with the usual upgrades. I also ordered a 10" billet converter from a local outfit (PTP). I plan on cleaning up the engine bay a little, including a coat or two of flat black to replace the battleship gray.

I already had a spare 2004 5.3 with a LS6 cam in the corner of my garage that used to be in my K5 with a Roush TVS1900 Supercharger. I went ahead and pulled the heads and took them to the machine shop for a valve job and valve spring swap (BTR .660" Kit).

While I was there, they asked me if I wanted to install a set of 2.00" intake valves and some stainless 1.57" exhaust valves that they had ordered for another customer, but they flaked out. Since it was only going to cost another $150 total, I figured why not. They also shaved .003" off the heads to make sure everything was nice and flat. I also went old school and painted the short block classic Chevy Hugger orange. I ordered a set of LS9 head gaskets and some head studs, after everything got here, I slapped on the heads.

Then everything got shoehorned in.....
 

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Brian Martin,Freelance adviser
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16,329 Posts
Yes, cool, love turbos. The only thing that bugs me about the car is that I remember when they were new, damn I'm old.

Brian
 

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Hot Rods are Built, not Bought
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803 Posts
Love the Monza's and Sunbird's. Cool car, thanks for posting. :welcome:
 

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803 Posts
There was a company called "DOBI" which I believe is now out of business but parts come up on Ebay. I had a rear anti-sway bar, front air dam, and a rear spoiler from them on a '76 V8 Monza. It really helped handling and high speed stability. They used to race Monzas in the ARR series against guys like Sam Posie. They were a great light little car with a little work but never held value against Camaros, Cudas, and Mustangs. I also put in a home made frame connector from the front and rear frame members. A must on your car with the power you'll be making. I miss that car.
 

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Brian Martin,Freelance adviser
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16,329 Posts
Very cool. :thumbup:

Brian
 
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