MPFI

[Joe Dirte]

Of coarse. I had forgotten about that. Last time I did the job with engine in was in 1990 on my 1978 K5 Blazer.
I wonder if I can jack up the engine enough to drop the pan and change the oil pump.....

Think if it's 2wd u can leave it in place n drop pan but 4wd will need lifted up... I THINK.

 

[L31MaxExpress]

Are you having trouble with the poppets? I ask because I replaced my poppets with a new mpfi set up after people here claimed that it would be a big difference. There was absolutely no difference.

If your poppets are still working fine, it is a waste of money.

My 97 ate its OEM spider in 2004 with 52K on the odometer. Ran smoother and had more power after the upgrade. Upgraded my brothers 99 Suburban during an engine swap. No before and after on that one because bought it with a blown up engine, but I bet it ran terrible because on of the tubes was snapped in half.

 

[clgodwin79]

Don’t buy any of those off brand ones! Maybe they’ll work, and maybe they won’t. Read the reviews. You have about a 50/50 chance of them working.

Unfortunately they discontinued the ACDELCO/Delphi OE GM part.

But……..there’s a place that remanufactures them. I literally got mine a week ago and you can buy it through Amazon without a core charge even though it would require a core through their actual website.

So mine is a refurbished OE one with Delphi injectors and a GM plastic body.

Here’s the link. MPFI Spider

And a few pics of mine….

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[Lou Merrell]

Linky no worky...

 

[evilunclegrimace]

Linky no worky...

Try this one

GB Remanufacturing, Inc.

Started in 1986 by Bill and Michael Kitching, GB remanufactures and distributes premium gasoline and diesel fuel injection related products worldwide. Our market leading fuel injection program includes gasoline port & GDI injectors, diesel injectors, pumps, electronics and component parts.

www.gbreman.com

 

[letitsnow]

My 97 ate its OEM spider in 2004 with 52K on the odometer. Ran smoother and had more power after the upgrade. Upgraded my brothers 99 Suburban during an engine swap. No before and after on that one because bought it with a blown up engine, but I bet it ran terrible because on of the tubes was snapped in half.

52k - that sucks. Mine had 217K, and still worked fine.

Off topic, but - you had stated in another thread that you were switching your van rear gears to 5.13, hoping to use 4th gear better while towing. Did that work out as you had hoped?

 

[L31MaxExpress]

52k - that sucks. Mine had 217K, and still worked fine.

Off topic, but - you had stated in another thread that you were switching your van rear gears to 5.13, hoping to use 4th gear better while towing. Did that work out as you had hoped?

Works great and lots of get up and go unloaded. Probably could have gotten away with less gear with the new 383 though. 383 makes a ton of grunt even down in the 2,000-2,500 rpm range.