Vortec/LT1 intake swap

By JRW383
October 9, 2016 in Member Build Threads

Recommended Posts

JRW383

Posted October 9, 2016

I have a 1998 Sierra that I have recently dropped a 383 in. I have the upgraded injector spider and I was able to make it work by simply upping the duty cycles on the fuel pump and adjusting the injector pulse width. The truck makes great power, but I know I'm going to want more after awhile. What all would specifically be involved in swapping the Vortec fuel system and intake for an LT1/LT4 intake and fuel system? What computer or programming modifications would I have to make in order for it to work? And what hardware upgrade, outside of the obvious would have to be made?

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

Recently Browsing 0 members
- No registered users viewing this page.
Forum Statistics

250.3k
Total Topics

2.7m
Total Posts
Member Statistics

342,681
Total Members

8,960
Most Online

Newest Member
Dad X MTB
Joined 3 hours ago
Who's Online 3 Members, 0 Anonymous, 468 Guests (See full list)

Latest Articles
- GM Recalls 2,700+ Trucks For Airbags That Can Explode While Parked – How To Check Your VIN
  Wednesday at 07:54 PM
- You Can Completely Disable A New Chevy Traverse By Bending The Rear Wiper Arm (No, Seriously)
  Wednesday at 05:47 PM
- Should You Use Engine Fuel Additives In Chevy or GMC? Here’s GM’s Official Statement.
  Wednesday at 02:38 PM
- We’ve Driven the Edition 1 For 4 Years. Here’s Why the Mid-Size HUMMER X Concept is Exactly What GMC Needs.
  May 29
Posts
- Oil Consumption
  
  By Grumpy Bear · Posted 1 hour ago
  
  Third time. Some consumption is 'masked' by fuel dilution, soot formation, acid formation of blowby gasses. Oil consumed offset by degradation products produced. 2 to 8% How much is that of your sump volume? for Pepper that is 4 ounces to a pint of oil. Why is everyone aware that we check transmission fluids at operating temperatures due to thermal expansion and ignorant or at least dismissive about this issue for the engine oil? Ever allow a motor to drain at oil change for a period of 'overnight"? Measure on the dipstick every quarter hour for say 2 hours and educate yourself. Then let is sit overnight (cooler) and ask the expansion and dilution questions again. 😉
- Gas Prices
  
  By CamGTP · Posted 4 hours ago
  
  $3.93 for 87 octane. $4.73 for 93 octane. $4.70ish for diesel. But a short drive can see prices swings as high as $5.30's still.
- Shopping for new truck and have question.
  
  By Gary Doolin · Posted 4 hours ago
  
  Thanks for the reply. Im not sure what you mean by the hype Nate puts out. I dont really know much about either trans. I do hear more about the 10 speed transmission having issues but im sure it's only a small % of them that are manufactured. I have heard that the 10 keeps you in the power curve more with less Rpm drop. My stepfather has a 10 speed in his 1/2 ton and im not crazy about the way it shifts and he has started experiencing shudder at 100k.
- Oil Consumption
  
  By Grumpy Bear · Posted 4 hours ago
  
  That's a good video @Atlas. On point and informative. Highlights the changes over the decades. Experience needs to be informed of pertinent changes to remain relevant. Nice find. Thanks!
- Oil Consumption
  
  By riddler · Posted 5 hours ago
  
  Wrong thread. Nevermind
GM-Trucks.com Clubs
- Black Truck Club
  
  Open Club · 612 members
- White Truck Club
  
  Open Club · 380 members
- Canadian Owners Club
  
  Open Club · 282 members
- Red Truck Club
  
  Open Club · 156 members
- diesel 3.0
  
  Open Club · 279 members
- Texas Owner's Group
  
  Open Club · 371 members
- NorthSky Blue Club
  
  Open Club · 118 members
- Midwest Owner's Group
  
  Open Club · 212 members
- 2015 Custom Sport Club
  
  Open Club · 5 members
- GM Snow Plowing Club HD
  
  Closed Club · 14 members
Popular Contributors
- Week
- Month
- Year
- All Time
1. 1
  
  KARNUT
  43
2. 2
  
  Atlas
  31
3. 3
  
  riddler
  18
4. 4
  
  Grumpy Bear
  15
5. 5
  
  diyer2
  11
Show More