Saturday, November 27, 2010

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

Monday, November 15, 2010

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

Sunday, November 14, 2010

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.