how involved is a 4.3l to a 5.7 in a 1998 gmc 1500

Asked by Jan 02, 2015 at 12:51 AM about the 1998 GMC Sierra 1500 C1500 SLT Extended Cab SB

Question type: Car Customization

i have a 1998 GMC ext cab 2wd, 100k with a 4.3 in pieces,, (aren't kids great). It has a
v.nice body,  Haven't been able to find a decent used 4.3. ( But I'm also Not sure what
years are compatible, I've gotten all kind of bad advice So I was wondering how hard to
swap basiclly a 5.7..I am a good mech. just not familiar with these year american
eng/electronics
bruno

1 Answer

PS sorry I forgot to say it is an automatic trans

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