1995 K2500 454/4L80E Build

**myburb** · 08-10-2019

In reference to the edelbrock 454 tbi intake, even though they say it won't fit 91-95 it fits just fine. There is a couple of assessory holes that are different but it works just fine. I have it on my 94 gen V and so far as I know 95 gen V is exactly the same. Thinking back maybe the egr is different. I don't use it so wasn't a problem.

**Chutchcroft** · 08-10-2019

Originally Posted by myburb

In reference to the edelbrock 454 tbi intake, even though they say it won't fit 91-95 it fits just fine. There is a couple of assessory holes that are different but it works just fine. I have it on my 94 gen V and so far as I know 95 gen V is exactly the same. Thinking back maybe the egr is different. I don't use it so wasn't a problem.

Pre 94 used a vacuum EGR. 94-95 is electronic with a different mounting profile. They possibly did make a 94-95 TBI intake, but don’t offer it anymore.

My heads are large oval and I would be doing a disservice by using peanut port intake manifold runners on them.

So off with the EGR!

-Hutch

**1project2many** · 08-10-2019

The heads and intake have exhaust crossovers. I have the option to block them to reduce charge temps or run them open to promote fuel delivery. Sounds like you are suggesting the latter. I would also like reliability and ease of tuning.

I think it would be beneficial to leave the crossover open or to restrict but not block flow through it.

**Chutchcroft** · 08-22-2019

Heads are back from the shop. New stainless valves, new locks and retainers, comp springs, 3 way valve job.

I also opted for the Flex-A-Lite 280 Monster fan.

Spent a day or so getting wiring for that all tied in to the AUX Fan circuit for A/C activation as well as a manual override and thermostat control.

I will begin assembly today and hopefully get most of it done by this weekend.

I was able to pull the stock BIN from the factory MEMCAL and also the “TBICHIP” bin file.

The VE tables are totally different and I will begin with the factory table and data log and adjust using BLM.

I got the EGR turned off per some guidance I found on this site. Still looking for the right way to shut down the CCP as I have removed and vented the tank externally. Also wondering if I need to turn off the CAT Overheat as they are long gone.

Any advice for my baseline adjustments to fire her off?