3.1, 3100 Chevy 60 Degree V6 Custom Intake Manifold Design

Here is the start of my 3D design of a custom intake manifold. I will be converting a 1999 3.1 V6 into a RWD application. I am still missing the pieces to close off the valley. Let me know what you think.

3100 Assembly - Sheet1

S10 Blazer Seat Swap

I was in desperate need of some new front bucket seats for my Chevy S10 Blazer. I read what seats fit the Blazer and saw that someone else used Cavalier/Sunfire buckets seats but retained the older seat brackets from the S10. I am happy to let everyone know that this worked great. I chose a pair of charcoal cloth buckets seats and swapped out the brackets and here is what they look like.

60 Degree Chevy V6 Build

When I originally got my S10 Blazer my first thought was to drop in a V8 and be done with it. However after doing some research on the Chevy 60 degree V6 engine, I am realizing that I can do something different and unique with the smaller motors that I have. I will also be able to easily keep my original transmissions and 4x4 drive train.

Here is what I have learned about my current engine:

• 1984 2.8 block is bad news, it came with the small journal sizes on the motor so it has to go.
• 1984 Cast Iron heads are bad news as well, the valves are the smallest diameter built.
• The truck is non computerized carburetor with standard mechanical fuel pump.
• The good news is that I can still use the timing cover, oil pan (maybe), intake manifold (for future project), and exhaust manifolds.
• The non-computerized distributor is desirable so I am keeping it.

 Here is what I plan on doing with my new 3.1, 3100 engines:

• I will be converting the FWD 3100 to RWD use. I am no expert but I will post my findings here. I have read about doing this online and there is minimal information out there but there are people doing it.
• I will also try and run the engine with a distributor and carburetor and maintain the aluminum high flowing heads. There is almost zero information out there about this conversion but I will give a it a try.
• I have already flipped the lower intake manifold for the 3100 and will adapt that to carburetor use.
• I will reverse engineer the intake and 3D model it along with my choice of carb to design a usable set up.
• I will have to modify the back intake runner to allow for distributor clearance.

3.1, 3100 Chevy V6 with reversed lower intake manifold

Chevy 3100, 3.1 V6 Motors for the Blazer

I wanted to show the two engines I just got for my blazer s10 rebuild. Check them out, nice newer motors with better breathing heads. Stock HP is 155 with 185 ft/lbs tq. The 1984 engine put our 115hp and 150 ft/lbs tq.