Hello all. I bought my 83 Monte a little over a year ago, and have really enjoyed this car. I posted a thread here just after I purchased it. https://gbodyforum.com/threads/83-monte-carlo.65594/#post-587211
I have done a fair bit of work over the lat year including a complete suspension rebuild front, and rear including new stock height coil springs. I removed the ecm, computer quadrajet, and computer distributor. I packed them safely away in case I want to return to stock. It now has a Jet 35001 quadrajet, and a MSD street fire HEI. It also received a set of stainless steel headers, and a true dual exhaust which required the install of a Jegs double hump trans crossmember. While this did help the performance of the original 305, its still seriously lacking in the performance department, So, that is what is going to be addressed next.
Let me start by saying the car is a very rust free , almost all original looking old car, and I really like that look, so the new engine needs to follow that theme. This 383 will need to look like the old stock 305 (to all but the but the sharpest enthusiasts) in every way right down to the satin black paint. The 383 is one I picked up from a friend several months ago. It was professionally built by a place called Promotor out of Indiana. He ran it in his S10 for about a year, and loved it, but he decided to spray it with nitrous, which it wasn't set up for ( ring gaps to tight), so it lifted the ring lands out of several pistons. Rather than fixing it he went with an LS swap, and sold me the engine for $250. While the pistons were shot, the cylinders still looked pretty good, and after a quick hone they should do well. The crank, and rods are both Eagle 4340 forgings, and are overkill for what I'll be doing with them. The engine was balance by Promotor , but was using speedpro forged flat tops. The piston I'm using are dished to keep the compression down. They are a few grams lighter than the flat tops, which will thow the balance off a little, but should be fine for a low rpm street engine. The heads aren't anything special, just a pair of Engine Quest cast iron IMCA heads that I did some light clean up below the valve seats, and were cc'd at a rather small 62cc combustion chamber, and is the reason for dished pistons. I will add pics of those soon. The cam of choice will be a mild Lunati VooDoo 262/268 with 468/489 lift flat tappet which should make good vacuum, and perform well in my application. The intake is an old GM Bowtie off a ZZ4 that been hanging around the shop for years now. It has the EGR provision which will help with the stock appearance.
I'm not sure how well the qjet will perform with my cam choice, but if I have to it can be sent back to Jet to be custom taylored to this setup. Anyway, I've rambled on long enough. Here are a few pics, and I will post more as it progresses. Thanks
Matt
I have done a fair bit of work over the lat year including a complete suspension rebuild front, and rear including new stock height coil springs. I removed the ecm, computer quadrajet, and computer distributor. I packed them safely away in case I want to return to stock. It now has a Jet 35001 quadrajet, and a MSD street fire HEI. It also received a set of stainless steel headers, and a true dual exhaust which required the install of a Jegs double hump trans crossmember. While this did help the performance of the original 305, its still seriously lacking in the performance department, So, that is what is going to be addressed next.
Let me start by saying the car is a very rust free , almost all original looking old car, and I really like that look, so the new engine needs to follow that theme. This 383 will need to look like the old stock 305 (to all but the but the sharpest enthusiasts) in every way right down to the satin black paint. The 383 is one I picked up from a friend several months ago. It was professionally built by a place called Promotor out of Indiana. He ran it in his S10 for about a year, and loved it, but he decided to spray it with nitrous, which it wasn't set up for ( ring gaps to tight), so it lifted the ring lands out of several pistons. Rather than fixing it he went with an LS swap, and sold me the engine for $250. While the pistons were shot, the cylinders still looked pretty good, and after a quick hone they should do well. The crank, and rods are both Eagle 4340 forgings, and are overkill for what I'll be doing with them. The engine was balance by Promotor , but was using speedpro forged flat tops. The piston I'm using are dished to keep the compression down. They are a few grams lighter than the flat tops, which will thow the balance off a little, but should be fine for a low rpm street engine. The heads aren't anything special, just a pair of Engine Quest cast iron IMCA heads that I did some light clean up below the valve seats, and were cc'd at a rather small 62cc combustion chamber, and is the reason for dished pistons. I will add pics of those soon. The cam of choice will be a mild Lunati VooDoo 262/268 with 468/489 lift flat tappet which should make good vacuum, and perform well in my application. The intake is an old GM Bowtie off a ZZ4 that been hanging around the shop for years now. It has the EGR provision which will help with the stock appearance.
I'm not sure how well the qjet will perform with my cam choice, but if I have to it can be sent back to Jet to be custom taylored to this setup. Anyway, I've rambled on long enough. Here are a few pics, and I will post more as it progresses. Thanks
Matt
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