5.7L to 7.4L Swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

The 1947 - Present Chevrolet & GMC Truck Message Board Network

Click Here



Register or Log In To remove these advertisements.

		The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 99-06 GMT800 Chevy and GMC Message Board
5.7L to 7.4L Swap

Site Merchandise

Prev

Previous Post

Next Post

Next

07-09-2015, 10:55 AM	#1
ktooker Registered User Join Date: Jul 2015 Location: Houston, Texas Posts: 2	5.7L to 7.4L Swap I have a 99 C1500 with the 5.7L Vortec. I am swapping to the 7.4L Vortec. The 5.7L has a spider injector with 1 plug to the intake but the 7.4L has individual injectors. Do I need the change the entire engine wiring harness or just the lead to the intake and the ECU?

Bookmarks

Tags

1999 silverado, 5.7l vortec, 7.4l vortec

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules

Forum Jump

All times are GMT -4. The time now is 08:21 AM.